knowing how alternators work, I can tell everyone that this is NOT a hoax video. your principles and practices are true. Thanks for posting a valid video.
Thank you God bless you. I just fussed at another guy for not doing what you are doing. Thank you Sir you are a true human being. I appreciate you explaining this for us.
What you say in the initial part of your video is so true - there is not another video that I could come across that describes the procedure to convert an alternator to a motor as clearly and luckily as yours does. So a big thank you for that. I am working on an electric bicycle conversion and this therefore was the most crucial find.
Thanks for this great video of some years ago. Very instructive. A quick Google on magnetic saturation shows magnetism is controlled by amps and not volts. Your small motor controller varies the voltage of the field. As the speed and the load of the motor changes, the required field voltage will change but not the required amps. As amps increase, first the power increases. It then tops out at saturation and falls. Set the field's amps where that flat top occures. Get a cheap DC/DC power module pcb with controllable amps (less than $10) and see the difference. This also means you can limit the motor's available power by reducing the amps to the field coil. It also reduces the amount of battery power your stator consumes. You can change the "size" of your motor on the fly. That is neat...
Great explanation. In case of alternators, you start the vehicle with 12v+ on the center coil, and brings down this voltage as you accelerate. This creates lots of torque in the start and higher rpm on the run. It's called field weakening
Very good explanation, especially when you put it to pen and paper, one of the best videos explaining how to wire one of these, I can't thank you enough!
This video is so handy. The Alternator I have is exactly the same as this. Just have to get the ESC for a brushless. Thanks for the video you made years ago.
30 seconds in I like this guy already, first he's figured out how to do this before I repeat BEFORE HE DECIDED TO MAKE A VIDEO ABOUT IT! It's a miracle finally somebody who is NOT a moron. Plus he's got a busted knuckle I like that it says he is a real guy kinda like me. Thank you!
HI, Thanks for the video, I am making a Go Kart for my son,, I bought the alternator today , convert it in the evening ( 10 mn thank you ) wait to buy the other stuff tomorrow .. keep you updated .
Maybe the way to go for a go-cart would be to use the diode pack, run your 3 phase out as you have already done and into a 3 phase breaker and ardinuo style control so that you can create some regenerative braking by charging up a pack of Ultra caps. My interest in motoring an alternator is simply for starting my GenSet projects for off grid appications, but possibly if needed by means of Star Delta system used in industrial motor applications. The possibilities are endless. I'm kicking myself for not having been around RC equipment these days like whats used in this video which is absolutely ideal for bench testing. Great Video BTW.
I was looking for battery tricks, as My motorcycle' s died. I stumbled on to this video. I am a fan now for sure. I appreciate you man. You didn't overcomplicate the process, confusing a novice at current ,amps, load. Can't wait to see more from you. I tire easily of some videos that you have to watch for too long to even figure out what the " you won't believe what you can do with....." Keep up the good work, and relaying you are willing to answer questions, and receptive to what maybe a better idea. Thanks, Trying to learn in Nor. Cal.
I watched this kid in Australia put Hal effect sensors inside the alternator. He connected them to his Digital frequency controller the controller was able to make the alternator go in reverse as well. He put it on a bicycle, and flat out he achieved about 47 mph. He also took it off-road and it still had plenty of spunk in the tall grass. He also built a go kart with a single alternator, but it was built just like your alternator His name is austiwawa.
Did you test the bridgerectifier if it has exces power flowing ore what polarity you get on that rectifier? There is a posibility with some alternators you actualy get swaps from generator to starter motor functions there is a posibility that you can run bouth at same device I belive
Good job, I'm somewhat of an electric bicycle nut (own 3). I have one of those ebooks you mention where they do a GM alternator, they talk about 0-6v into the slip rings. I was surprised that your findings say so low, could it be because you are sending a PWM signal in there vs real DC? There is a Pow Pow Powerwheels racer built around a gravedigger car that runs twin alternators and a custom controller. That car is one of the fastest ones in the series. Cocktail napkin estimate is 3horsepower per. Would love to hear the rpm details on yours, it sounded fast. I think for any sustained use or heavy load you would need to add a forced cooling shroud and if I were going to try this I would use an ebike 3phase controller, 24-36v and maybe 20-30Amps. Working the formula for power from the volts and amps, 20A @ 24v=480w, one electrical horsepower=746w. My daily rider is a '450w brushed motor' running 24v from a 35Amp pwm box, that's a tad over 1 electrical horsepower and has PLENTY of power to move my fat arse around. Single speed sprocket drive tops out at around 16Mph. When I had the LiFeP04 pack on it I got around 18mph and did a cost study of mile per recharge and at 10c/Kwh it was around 1/4penny per mile! (does not include any cost for maint) Best wishes from sunny Florida.
hmm really good point - i didn't think of that - he is actually pulsing the field rotor - the modulation would result in a EM spike in the rotor- that's why when he can 'match' the em spike with the stator field pulse the motor takes off. thanks for the comment. it would be interesting to see the difference between that and just a Perm Mag rotor.
Thanks so much for the info! You did a great job making this process clear. I,'ve been getting frustrated watching all the videos that show this but do not tell how its done or make it way too confusing. I have an alternator that I now can attempt this with thanks to your video!
Hi. Thanks for the excellent tutorial. I would really like to build a go kart with this as a motor. I searched ebay and those e-scooter / bike brushless speed controllers are very affordable and should have all the necessary connections. I noticed that they also have a brake low / high connection. Can you use them to use them to brake the motor and charge the batteries back up? (like they do in electric and hybrid cars). It would make the batteries last longer.
If you dont have a speed controler can you short the armature together to make an electro magnet or add a diode to the armature contact to polarize it?
When a motor is running it acts as a generator as well as a motor. It generates a counter voltage. The more field current, the more counter voltage. When the counter voltage is equal to the supply voltage, that determines the motor's speed. With more field current the counter voltage will build up faster and be equal to the supply voltage at a lower speed. That is why the motor runs slower with more field current, and faster with less field current.
The frequency of the 3 phase speed controller output would determine the no-load RPM, no? I would think that as the load on then motor increases, the field voltage would have to increase. It's acting funky because there is no load on it.
Yes, assuming the 3 phase frequency is adjusted to allow the higher rpm. Because torque is created by the magnetic field of the stator multiplied by the magnetic field of the rotor, the resulting higher rpm due to weakening the rotor field will result in less torque but perhaps the same power output.
The frequency and voltage to rotor coils controls speed normally, but it stalls if field coils are high voltage, because the rotor coil generates strong counter voltage, canceling out power. It acts as a generator too, so a fast rotor coil passing strong magnetic fields generates huge counter voltage, slowing the rotor. The more power produced, the more power needed to turn it. With a strong field coil, the required power is more than the input power to the rotor coils so it stalls. I'm no expert but that's how I understood his comment.
Yes, that's basically the gist of it. If frequency is not kept synchronous with motor RPM, slippage will occur causing torque vibration and likely generation during part of the phase and motoring during another. Assuming RPM/frequency remain in sync, increasing current through either the rotor, stator or both will increase torque and tend to resist a change in RPM with a load change and therefore resist slipping out of sync. Increasing voltage across either will increase current as well because of ohms law.
hi there im building a go kart for my son but 24v as i have two 12v 100ah deep cycle batteries but they are heavy! and was wondering would it be best if use an alternator or a brushless 1000w or 1600w motor? which would produce more power and pull less amps? Which would be more durable? u know kids theyll put full throttle non stop until the battery dies lol
Hey, I might like to build electricity running wheels with max power, can you help me how I put the generator together and how much battri I need any where I can buy checks
Hello, already, you should know what power you want to have! Then find an alternator and if not, it takes 24v minimum ... A 48v you go at a speed of more than 50km / h
@@JUSTGOMAKEIT if I could show you a picture I would. I was able to isolate the two brushes and run wires out of the back. I think this might work but if not let me know
I have seen alot of these videos and i just want to hook it up straight to a 12 v car battery can you hook the 3 wires to the one bushing wire and the other to the ground and it work because i dont want a controler i just want it to run by hooking it to the battery
Hi, is there any way to use an alternator both as a motor and an alternator at the same time. I have a diesel engine feeding up the alternator but I want to have either and electric motor gearing up the same shaft. Alternative to the separate engine I was wondering if I can use the alternator as a motor and and alternator at the same time? thanks for the help in advance.
Hey have you looked at a 1970,s model mopar alternator its geared a lil different. Think it might be easier to convert but might not be as much power though. Duno but would like to though?
Would it be possible to power an ac motor from a blender with a bldc controller from an rc car? I tried just taking the three wires from the blender motor and attaching it to corresponding wires on the esc but nothing happened. Would it be possible to get it working without having to do a complete rewinding?
I'm a member of the UK power wheels and a college on that sudgested I have a power resistor in line with the field Coil and switch that would bypass it effectively giving you a high touqe low speed 1st gear and a low touqe high speed 2nd gear. You could switch the resistor to a 12v motor controller with a potentiometer on it if you wanted to dial in 2nd but that may be overkill.
Now that's what I was looking for 7years back when I converted my 50cc scooter... At the time I was asking and everyone was telling me that's too difficult if even possible... So finally I changed the winding of the stator and turned it to a new motor basically... Also bought an expensive airplane controler 600euros...
Thanks for sharing man. Quick question, is it possible to use the same battery for both the rotor (12v) and stator (48v) with the same 48v 20A battery using a dc/dc step down? Thank you
@@JUSTGOMAKEIT thanks only thinking about certain benefits about star and delta connection iam planning to build a go-kart for my son an E kart that's all
Thank you very much for the grateful experiment. However, I will be very thankful if you can provide me with the sources of the kits 'especially the part that convert the DC single phase into AC 3 phases' which was used in this project. Looking forward to hearing from you.
May the Lord almighty bless you you have changed my life for the good man may you get the thing that you want the most in your life man cause you granted me what i have looked for for a long time BLESSINGS MAN
I have been feeling that way on things myself lately and I am only 49. I am sure your comment here will be in my thoughts almost daily till I'm breathing no more. I have so many things I want to make still and I know that I won't have time to... I miss the days when I had forever left :-(
applying current through the brushes to the rotor causes the rotor to become an electromagnet. This electromagnet is then dragged around in a circle by the rotating stator field.
hi I am wanting to put an alternator on a bicycle and see if it can power it. instead of the controller what would you use? ideally id like to use a throttle grip but I am unsure. thanks
+1998charlieboy there is a brushless motor controller for electric bikes or scooters that would give you a twist throttle. such as these: www.electricscooterparts.com/speedcontrollers48volt.html#48Vbrushlessmotor all you would have to do then is supply power to the field coil.
You could replace the field coil with permanent magnet ring/s sandwiched between the poles using iron spacers, if needed, to keep the armature poles apart at the right distance. Got it?
Voltage applied by the speed controller may have been constant with speed being varied by frequency only. This is rather inefficient in that the high voltage at low loads results in unnecessarily high heating of the stator coils. If the speed controller is smart enough to detect power factor of its load and reduce applied phase voltage to maintain a power factor of nearly unity, The speed controller need only be adjusted to the desired RPM.
Thanx for a very nice and informative video . I am very much interested in this to try and run it on my metal larthe . I live in South Africa and power outages are oart of our working day . my lighting is already sorted and runs off 12 volts . If i can get the alternator tomotor conversion to run smooth i can run my lathe when electricity is off . Would like to know if this will be at all possible and if someone tried it yet .
I want to do this but retain the battery charging capabilities of the alternator, essentially making a starter/alternator out of it. The project is to build a gas-powered battery charger for an ATV-powered golf cart build I'm working on. Unfortunately, the stator in the engine isn't strong enough to maintain charge with all the accessories I want to run, and I can't find a better stator for my engine. Anyway, I want to use a 2½hp engine I already own to spin the alternator, and because space is limited and I can't find a starter for it, I want the alternator to start the engine then switch to charging the battery. I'm thinking three 5-pin relays wired to a button can switch the 3 coil wires from the rectifier to the speed controller, and back when the button is released.
The field current requires a "current source", not a voltage source. The more field current, the more field strength, unless you saturate the core. The field current for an alternator can handle a few amps. Just a suggestion, connect multiple batteries in parallel to get more current.
Richard Vasquez. Do you NOT UNDERSTAND that a voltage supplied to the field applied across the resistance of the field coil is going to cause a field current to flow?
You're right Richard, but assuming the field is not saturated, current is determined by ohm's law so varying voltage to the field will work to vary current.
cphank151 The field current is determined by field supply voltage, back emf and field resistance. Assuming the field is "saturated" (or in any other state) what can you do to raise or lower the field current? Raise or lower the field ___________. Further he suggests to put more batteries in parallel to increase the field current. So maintain the field supply voltage at the same voltage as one battery .....and you say he is correct. No, the beginning and end of his response are both incorrect. The middle sentence is correct though.
speed controller has to vary AC frequency to the motor. A heater motor controller would probably work to vary the field current as necessary to optimize power factor at a given load.
depends if the stator is wye wound or delta wound. delta wound has 3 poles yours is wye wound. dont know if it would make a difference in speed and torque? probably....
Would it be possible to use it as electric supercharger (together with a compressor) and only boost an engine when it needs it the most in hard acceleration and only momentarily? I mean increasing torque intermittently to a car engine and not max power. It could use a capacitor to draw the required amps for the few seconds the boost would be on when pedalling to floor. When the engine rpm reaches certain value, the motor and compressor shuts down.
Halfway there now just hook up a standard alternator with a belt to your converted alternator / motor and hopefully discover free energy via the output of the factory alternator you could even run a additional wire from the factory alternators output back to your converted alternator to supplement its power also and still generate enough power to power a few fans or whatever
Thanks for the info. Looks like the perfect ideal cheap motor for an E bike. Could you use a sewing machine foot control pedal with it ? Around $30 on eBay. I don't know if AC and DC current makes any difference.
I think you have the names of coils mixed up. As I understand it, the field coils are the three outer coils that make up the stator. The rotor has the coils that are switched on and off via the brushes. Either way, a great video 👍
I have a 10 mile ride to work. I would like to build an electric bike. Would an alternator work? Plan on hooking the electric motor to the bicycle chain and gears. 12/24 volts? 2 car batteries?
yes, but depending on how much voltage you give to the alternator, and depending the exact models of the controller/alternator/batteries, you can need more or less gear ratio to achieve some speed while not lacking torque there are videos of ebikes with alternators, MR IMBUS is one guy who made an ebike with your idea
hi,.am heri in Tanzania planing to do a project on building an e bike and i jst saw this video ,so i wonder how much torque can i get from an alternator?is it enough to run an e bike at say 55 kph?how much of battery voltage would i need?.. Please let me know.This might make a huge save in the budget.
Only mods needed are removing the diode pack in the back of the alternator and a little ingenuity in securing the brush housing so that it doesn't move when shaft is spinning. Also have to isolate the brush terminals from shorting on the metal housing. Inside the main casing of the alternator, nothing is modded.
Do you know if I can run one with out a controller and how I'd hook that up? I'm converted a riding mower to electric and I've been thinking of removing the belt drive for the blades and running a direct motor. I wouldn't need a controller. Just flip a solenoid on to spin them up and go. I've got a couple Nissan 200 amp alternators sitting around from another project I was doing before I sold my pathfinder. It'd be great if all I had to do was wire and mount them to run off my 48v pack.
Nope. you cant. its literally impossible. without some kind of controller or ESC ESC is VERY cheap on amazon. Will do exactly what you want for like $8.66
Hello on a drive, you can not operate the engine with a interuptor ... an energy of 12V. output power alternator converted into motor is not very strong ... you need a power of more than 48v to the controller for proper operation
eres mi inspiracion,,, gracias por compartir,, busco permanentemente informacion y hacer mi propio proyecto mirando diferentes adaptaciones... no busco mas,, hare lo mismo que vos, gracias totales. P.D. como hago para traducir tu audio?.
Alternators produce ac 3ph. You need to turn it at a correct speed to get 50 or 60 hz. They have kits to convert a typical 12 v Altenator to 120 v ac But again you need to run it at the correct rpm for 50-60 hz
knowing how alternators work, I can tell everyone that this is NOT a hoax video. your principles and practices are true. Thanks for posting a valid video.
Sir this the worst description for project I have viewed pls they are windings not coils you see connected in star config
Thank you God bless you. I just fussed at another guy for not doing what you are doing. Thank you Sir you are a true human being. I appreciate you explaining this for us.
What you say in the initial part of your video is so true - there is not another video that I could come across that describes the procedure to convert an alternator to a motor as clearly and luckily as yours does.
So a big thank you for that. I am working on an electric bicycle conversion and this therefore was the most crucial find.
Thanks for this great video of some years ago. Very instructive.
A quick Google on magnetic saturation shows magnetism is controlled by amps and not volts. Your small motor controller varies the voltage of the field. As the speed and the load of the motor changes, the required field voltage will change but not the required amps. As amps increase, first the power increases. It then tops out at saturation and falls. Set the field's amps where that flat top occures.
Get a cheap DC/DC power module pcb with controllable amps (less than $10) and see the difference.
This also means you can limit the motor's available power by reducing the amps to the field coil. It also reduces the amount of battery power your stator consumes. You can change the "size" of your motor on the fly. That is neat...
InstaBlaster
Great explanation. In case of alternators, you start the vehicle with 12v+ on the center coil, and brings down this voltage as you accelerate. This creates lots of torque in the start and higher rpm on the run. It's called field weakening
How do you lower the voltage?
Very good explanation, especially when you put it to pen and paper, one of the best videos explaining how to wire one of these, I can't thank you enough!
thanks, and you are very welcome.
This video is so handy. The Alternator I have is exactly the same as this. Just have to get the ESC for a brushless. Thanks for the video you made years ago.
30 seconds in I like this guy already, first he's figured out how to do this before I repeat BEFORE HE DECIDED TO MAKE A VIDEO ABOUT IT! It's a miracle finally somebody who is NOT a moron. Plus he's got a busted knuckle I like that it says he is a real guy kinda like me. Thank you!
Very well explained and clear like a crystal. You are a blessed man and thank you.
HI, Thanks for the video, I am making a Go Kart for my son,, I bought the alternator today , convert it in the evening ( 10 mn thank you ) wait to buy the other stuff tomorrow .. keep you updated .
Yes!!! you do solves my problems by watching the video keep it up sir. Thanks for posting a valid video.
Maybe the way to go for a go-cart would be to use the diode pack, run your 3 phase out as you have already done and into a 3 phase breaker and ardinuo style control so that you can create some regenerative braking by charging up a pack of Ultra caps. My interest in motoring an alternator is simply for starting my GenSet projects for off grid appications, but possibly if needed by means of Star Delta system used in industrial motor applications. The possibilities are endless. I'm kicking myself for not having been around RC equipment these days like whats used in this video which is absolutely ideal for bench testing. Great Video BTW.
I was looking for battery tricks, as My motorcycle' s died. I stumbled on to this video. I am a fan now for sure.
I appreciate you man. You didn't overcomplicate the process, confusing a novice at current ,amps, load. Can't wait to see more from you. I tire easily of some videos that you have to watch for too long to even figure out what the " you won't believe what you can do with....." Keep up the good work, and relaying you are willing to answer questions, and receptive to what maybe a better idea.
Thanks,
Trying to learn in Nor. Cal.
Saying hi from Puerto Rico your video is clear now I now I understand how to do it thank you
..at last..now i understand how it is connected!..other videos really don't teach sad to say :-( ..thank you sir! can't wait to try one...
+Philip Bullas your welcome. Thats the whole reason i made this video.
Yeah I had a suggestion for you if you try a dimmer switch on the field coil connection you be able to control voltage and the saturation great video
Dimmer switch will work???
Im askin richard fi
probably, but i know that rheostats work
That was surprising about the voltage needed in the rotating field. Very informative.
I'm wondering if that four wires set up is the star pattern or y pattern. Have you tried different currents on the rotor too
I watched this kid in Australia put Hal effect sensors inside the alternator. He connected them to his Digital frequency controller the controller was able to make the alternator go in reverse as well. He put it on a bicycle, and flat out he achieved about 47 mph. He also took it off-road and it still had plenty of spunk in the tall grass. He also built a go kart with a single alternator, but it was built just like your alternator His name is austiwawa.
Austiwawa has great diy EV videos!
I was wanting to know if you have 12 wires or 6 pairs on the alternator. Which ones do you use?
Thanks for your instructions. Do you have any idea of the output?
In place of the speed control do you think a dimmer switch would work
Yes!!! you do solves my problems by watching the video keep it up sir
Did you test the bridgerectifier if it has exces power flowing ore what polarity you get on that rectifier? There is a posibility with some alternators you actualy get swaps from generator to starter motor functions there is a posibility that you can run bouth at same device I belive
Good job, I'm somewhat of an electric bicycle nut (own 3). I have one of those ebooks you mention where they do a GM alternator, they talk about 0-6v into the slip rings. I was surprised that your findings say so low, could it be because you are sending a PWM signal in there vs real DC? There is a Pow Pow Powerwheels racer built around a gravedigger car that runs twin alternators and a custom controller. That car is one of the fastest ones in the series. Cocktail napkin estimate is 3horsepower per. Would love to hear the rpm details on yours, it sounded fast. I think for any sustained use or heavy load you would need to add a forced cooling shroud and if I were going to try this I would use an ebike 3phase controller, 24-36v and maybe 20-30Amps. Working the formula for power from the volts and amps, 20A @ 24v=480w, one electrical horsepower=746w.
My daily rider is a '450w brushed motor' running 24v from a 35Amp pwm box, that's a tad over 1 electrical horsepower and has PLENTY of power to move my fat arse around.
Single speed sprocket drive tops out at around 16Mph. When I had the LiFeP04 pack on it I got around 18mph and did a cost study of mile per recharge and at 10c/Kwh it was around 1/4penny per mile! (does not include any cost for maint)
Best wishes from sunny Florida.
He mentioned, he also used a AA battery. Im assuming thats 1.2 - 1.7v DC
hmm really good point - i didn't think of that - he is actually pulsing the field rotor - the modulation would result in a EM spike in the rotor- that's why when he can 'match' the em spike with the stator field pulse the motor takes off.
thanks for the comment.
it would be interesting to see the difference between that and just a Perm Mag rotor.
Thanks so much for the info! You did a great job making this process clear. I,'ve been getting frustrated watching all the videos that show this but do not tell how its done or make it way too confusing. I have an alternator that I now can attempt this with thanks to your video!
+spear913 your welcome, i am planning a video to see how much power i can make with this setup.
Hi. Thanks for the excellent tutorial. I would really like to build a go kart with this as a motor. I searched ebay and those e-scooter / bike brushless speed controllers are very affordable and should have all the necessary connections. I noticed that they also have a brake low / high connection. Can you use them to use them to brake the motor and charge the batteries back up? (like they do in electric and hybrid cars). It would make the batteries last longer.
Do I need the speed controller can I just hook up the power in the wires to get it to turn on just to see if it works 1st?
SMART GUY. THANK YOU. NOT SURE IF I UNDERSTAND IT YET BUT WILLRESEACH IT MORE THANK YOU FOR THE IDEA. HOW MUCH VOLTAGE CAN THIS PUT OUT ?
If you dont have a speed controler can you short the armature together to make an electro magnet or add a diode to the armature contact to polarize it?
did you do any performance or efficiency comparison between alternator and BLDC motors
very nice, where can i find 3 phase speed controller how much it coast
get one for a electric bike off ebay for cheap
When a motor is running it acts as a generator as well as a motor. It generates a counter voltage. The more field current, the more counter voltage. When the counter voltage is equal to the supply voltage, that determines the motor's speed. With more field current the counter voltage will build up faster and be equal to the supply voltage at a lower speed. That is why the motor runs slower with more field current, and faster with less field current.
The frequency of the 3 phase speed controller output would determine the no-load RPM, no? I would think that as the load on then motor increases, the field voltage would have to increase. It's acting funky because there is no load on it.
Yes, assuming the 3 phase frequency is adjusted to allow the higher rpm. Because torque is created by the magnetic field of the stator multiplied by the magnetic field of the rotor, the resulting higher rpm due to weakening the rotor field will result in less torque but perhaps the same power output.
The frequency and voltage to rotor coils controls speed normally, but it stalls if field coils are high voltage, because the rotor coil generates strong counter voltage, canceling out power. It acts as a generator too, so a fast rotor coil passing strong magnetic fields generates huge counter voltage, slowing the rotor. The more power produced, the more power needed to turn it. With a strong field coil, the required power is more than the input power to the rotor coils so it stalls. I'm no expert but that's how I understood his comment.
Sintron y coles de bruselàs
Yes, that's basically the gist of it. If frequency is not kept synchronous with motor RPM, slippage will occur causing torque vibration and likely generation during part of the phase and motoring during another. Assuming RPM/frequency remain in sync, increasing current through either the rotor, stator or both will increase torque and tend to resist a change in RPM with a load change and therefore resist slipping out of sync. Increasing voltage across either will increase current as well because of ohms law.
I'm looking for torque, optimum numbers, are they elusive regarding controller and battery's? or how best can one find a recipie.
hi there im building a go kart for my son but 24v as i have two 12v 100ah deep cycle batteries but they are heavy! and was wondering would it be best if use an alternator or a brushless 1000w or 1600w motor? which would produce more power and pull less amps? Which would be more durable? u know kids theyll put full throttle non stop until the battery dies lol
Hey, I might like to build electricity running wheels with max power, can you help me how I put the generator together and how much battri I need any where I can buy checks
Hello, already, you should know what power you want to have!
Then find an alternator and if not, it takes 24v minimum ...
A 48v you go at a speed of more than 50km / h
Do i have to use a 12v battery on a 12v alternator, for the 3 phases?
Should the brush wires not touch the casing? Mine were grounded to the casing.. any suggestions?
i would just unhook them from the case
@@JUSTGOMAKEIT if I could show you a picture I would. I was able to isolate the two brushes and run wires out of the back. I think this might work but if not let me know
I have seen alot of these videos and i just want to hook it up straight to a 12 v car battery can you hook the 3 wires to the one bushing wire and the other to the ground and it work because i dont want a controler i just want it to run by hooking it to the battery
Hi, is there any way to use an alternator both as a motor and an alternator at the same time. I have a diesel engine feeding up the alternator but I want to have either and electric motor gearing up the same shaft. Alternative to the separate engine I was wondering if I can use the alternator as a motor and and alternator at the same time? thanks for the help in advance.
Hey have you looked at a 1970,s model mopar alternator its geared a lil different. Think it might be easier to convert but might not be as much power though. Duno but would like to though?
Brilliant idea bro,this one if developed well it wl change the history of e bikes and e cars as well.keep it up.
Would it be possible to power an ac motor from a blender with a bldc controller from an rc car? I tried just taking the three wires from the blender motor and attaching it to corresponding wires on the esc but nothing happened. Would it be possible to get it working without having to do a complete rewinding?
I'm a member of the UK power wheels and a college on that sudgested I have a power resistor in line with the field Coil and switch that would bypass it effectively giving you a high touqe low speed 1st gear and a low touqe high speed 2nd gear. You could switch the resistor to a 12v motor controller with a potentiometer on it if you wanted to dial in 2nd but that may be overkill.
Thank you for the Explanation on the Alternator wiring ! A Great DIY !
Now that's what I was looking for 7years back when I converted my 50cc scooter... At the time I was asking and everyone was telling me that's too difficult if even possible... So finally I changed the winding of the stator and turned it to a new motor basically... Also bought an expensive airplane controler 600euros...
Thanks for sharing man. Quick question, is it possible to use the same battery for both the rotor (12v) and stator (48v) with the same 48v 20A battery using a dc/dc step down? Thank you
that can be done.
@@JUSTGOMAKEIT awesome! thx
Hi did you wire the field (stator) in star configuration ?
It was already wired in star configuration
@@JUSTGOMAKEIT thanks only thinking about certain benefits about star and delta connection iam planning to build a go-kart for my son an E kart that's all
Thank you very much for the grateful experiment. However, I will be very thankful if you can provide me with the sources of the kits 'especially the part that convert the DC single phase into AC 3 phases' which was used in this project. Looking forward to hearing from you.
Great your project. plus mi tire one doubts how many volts I put in the terminals of the rotor thank you
will the controller off of a treadmill work?
Nice vid.. Can you run it on 3 phase AC from the grit ? i have 240V 3 phase in my garage.
i have no idea what would happen
Please dont do that
What kind of power goes to the status wires is it 2 positive and a ground or all positive?
May the Lord almighty bless you you have changed my life for the good man may you get the thing that you want the most in your life man cause you granted me what i have looked for for a long time BLESSINGS MAN
+macala kapus thank you im very happy i was able to help
@macala kapus Hahahaaha .... great comment man!!
R
macala kapus
what about that alternate / motor, does it work or not ? I'm 78 , I don't have time experiment, regards,
I have been feeling that way on things myself lately and I am only 49. I am sure your comment here will be in my thoughts almost daily till I'm breathing no more. I have so many things I want to make still and I know that I won't have time to... I miss the days when I had forever left :-(
Have you tried a rheostat switch commonly known as a dimmer switch if it works you could mount on the steering wheel and use it as a thumb throttle...
Hi, just a quick question. How does the alternator rotor, fixed poles, follow the rotating magnetic field without a position sensor? Dave R
the red box in the video (brushless motor controller) does the rotating
applying current through the brushes to the rotor causes the rotor to become an electromagnet. This electromagnet is then dragged around in a circle by the rotating stator field.
hi I am wanting to put an alternator on a bicycle and see if it can power it. instead of the controller what would you use? ideally id like to use a throttle grip but I am unsure. thanks
+1998charlieboy there is a brushless motor controller for electric bikes or scooters that would give you a twist throttle. such as these:
www.electricscooterparts.com/speedcontrollers48volt.html#48Vbrushlessmotor
all you would have to do then is supply power to the field coil.
do you have an email address I could have to send you some pictures as I am confused as to what is what and some advice would go a long way
Thanks
Did you ever create the Arduino software to control both rotor current and stator frequency with one input?
You could replace the field coil with permanent magnet ring/s sandwiched between the poles using iron spacers, if needed, to keep the armature poles apart at the right distance. Got it?
I want to see you build an arduenno controller, like you mention there...
How many volts and amps does the controller take to power the motor?
You still use the diode?
Thanks for the video....your an awesome human being!!
Was the voltage applied to the phases being adjusted by the speed controller or was it constant?
Voltage applied by the speed controller may have been constant with speed being varied by frequency only. This is rather inefficient in that the high voltage at low loads results in unnecessarily high heating of the stator coils. If the speed controller is smart enough to detect power factor of its load and reduce applied phase voltage to maintain a power factor of nearly unity, The speed controller need only be adjusted to the desired RPM.
Thanx for a very nice and informative video . I am very much interested in this to try and run it on my metal larthe . I live in South Africa and power outages are oart of our working day . my lighting is already sorted and runs off 12 volts . If i can get the alternator tomotor conversion to run smooth i can run my lathe when electricity is off . Would like to know if this will be at all possible and if someone tried it yet .
Hi, alternators I have quite a few. How to get a controller down here in Rwanda us a big problem. Can you help get the control? Ready to pay for it.
I want to do this but retain the battery charging capabilities of the alternator, essentially making a starter/alternator out of it. The project is to build a gas-powered battery charger for an ATV-powered golf cart build I'm working on. Unfortunately, the stator in the engine isn't strong enough to maintain charge with all the accessories I want to run, and I can't find a better stator for my engine. Anyway, I want to use a 2½hp engine I already own to spin the alternator, and because space is limited and I can't find a starter for it, I want the alternator to start the engine then switch to charging the battery. I'm thinking three 5-pin relays wired to a button can switch the 3 coil wires from the rectifier to the speed controller, and back when the button is released.
The field current requires a "current source", not a voltage source. The more field current, the more field strength, unless you saturate the core. The field current for an alternator can handle a few amps.
Just a suggestion, connect multiple batteries in parallel to get more current.
Richard Vasquez. Do you NOT UNDERSTAND that a voltage supplied to the field applied across the resistance of the field coil is going to cause a field current to flow?
You're right Richard, but assuming the field is not saturated, current is determined by ohm's law so varying voltage to the field will work to vary current.
cphank151 The field current is determined by field supply voltage, back emf and field resistance. Assuming the field is "saturated" (or in any other state) what can you do to raise or lower the field current? Raise or lower the field ___________. Further he suggests to put more batteries in parallel to increase the field current. So maintain the field supply voltage at the same voltage as one battery .....and you say he is correct. No, the beginning and end of his response are both incorrect. The middle sentence is correct though.
Very good your project! I wanted to do something like this on a bike, but here in Brazil and difficult things, example parts are expensive
Thank you very much for the explanatory video. You saved my bucks and ducks. I just go and make it then. :)
speed controller, can you use a car heater motor controller ? it would be cheep ? just wondering.
speed controller has to vary AC frequency to the motor. A heater motor controller would probably work to vary the field current as necessary to optimize power factor at a given load.
depends if the stator is wye wound or delta wound. delta wound has 3 poles yours is wye wound. dont know if it would make a difference in speed and torque? probably....
Would it be possible to use it as electric supercharger (together with a compressor) and only boost an engine when it needs it the most in hard acceleration and only momentarily? I mean increasing torque intermittently to a car engine and not max power. It could use a capacitor to draw the required amps for the few seconds the boost would be on when pedalling to floor. When the engine rpm reaches certain value, the motor and compressor shuts down.
So it doesn't matter what colour wire on controller goes to what wire on the alternator?
How do you control this and how do you run it from a 12v car battery
Halfway there now just hook up a standard alternator with a belt to your converted alternator / motor and hopefully discover free energy via the output of the factory alternator you could even run a additional wire from the factory alternators output back to your converted alternator to supplement its power also and still generate enough power to power a few fans or whatever
Thanks for the info. Looks like the perfect ideal cheap motor for an E bike. Could you use a sewing machine foot control pedal with it ? Around $30 on eBay. I don't know if AC and DC current makes any difference.
I think you have the names of coils mixed up. As I understand it, the field coils are the three outer coils that make up the stator. The rotor has the coils that are switched on and off via the brushes. Either way, a great video 👍
You are correct.
and can he charge battery also in same time ?
did you try to use a Y servo wire from the ESC and the brushed controller?
Could you please tell me much it would cost me to buy one from you the whole working unit?
Could you please tell me if it can run in 36 or 48 volt power resource?
can you list the exact parts list so I can order it, please?
I have a 10 mile ride to work. I would like to build an electric bike.
Would an alternator work?
Plan on hooking the electric motor to the bicycle chain and gears.
12/24 volts? 2 car batteries?
yes, but depending on how much voltage you give to the alternator, and depending the exact models of the controller/alternator/batteries, you can need more or less gear ratio to achieve some speed while not lacking torque
there are videos of ebikes with alternators, MR IMBUS is one guy who made an ebike with your idea
since you said it is a brushless motor. Do i need to remove the brushes? you said that you were leaving them on.
Exactamente, eso es.
The brushes must be left in place to magnetize the electromagnet of the rotor.
Still wondering if it is possible to get the alt to run sans speed controller
Impossible
hi,.am heri in Tanzania planing to do a project on building an e bike and i jst saw this video ,so i wonder how much torque can i get from an alternator?is it enough to run an e bike at say 55 kph?how much of battery voltage would i need?..
Please let me know.This might make a huge save in the budget.
so will that replace my 30cc engine on my cub?
did you take the alternator apart and do any modifications?..
Not really any modifcations needed!
Only mods needed are removing the diode pack in the back of the alternator and a little ingenuity in securing the brush housing so that it doesn't move when shaft is spinning. Also have to isolate the brush terminals from shorting on the metal housing. Inside the main casing of the alternator, nothing is modded.
Aren’t they normally wired in series?
Do you know if I can run one with out a controller and how I'd hook that up? I'm converted a riding mower to electric and I've been thinking of removing the belt drive for the blades and running a direct motor. I wouldn't need a controller. Just flip a solenoid on to spin them up and go. I've got a couple Nissan 200 amp alternators sitting around from another project I was doing before I sold my pathfinder. It'd be great if all I had to do was wire and mount them to run off my 48v pack.
Nope. you cant. its literally impossible. without some kind of controller or ESC
ESC is VERY cheap on amazon. Will do exactly what you want for like $8.66
realflow100 thank you.
hi, is it possible to rig it to a diesel engine and a 12v battery?? and would the switch be a push on switch?
Hello
on a drive, you can not operate the engine with a interuptor ... an energy of 12V. output power alternator converted into motor is not very strong ...
you need a power of more than 48v to the controller for proper operation
Some of the newer cars use the alternator as a starter. The new Honda Goldwing 1800 uses a combo starter-alternator. No separate starter motor.
eres mi inspiracion,,, gracias por compartir,, busco permanentemente informacion y hacer mi propio proyecto mirando diferentes adaptaciones... no busco mas,, hare lo mismo que vos, gracias totales. P.D. como hago para traducir tu audio?.
Have you thought of replacing the field coil with neodymium magnets?
Have you thought of replacing the field coil with neodymium magnets?
press hydrolique !!!
can you use two alternators one as a motor and another as a power source and produce 12 vac for home use?
Alternators produce ac 3ph. You need to turn it at a correct speed to get 50 or 60 hz. They have kits to convert a typical 12 v Altenator to 120 v ac But again you need to run it at the correct rpm for 50-60 hz
Can you show how to hook up the inside to the first 3 wires. My alternator has no wires .
what is the model of the alternator? usually they have a 3 phase rectifier and you don't have that in this one.
Please explain detail of ESC controller. cost i used 30 amp 4S not working. only alarm / beeb.. beebinside motor. thanks a lots.
Cant you short the rotor races and use it as an ordinary 3fase induction motor?