At 14:20 , you are making connections while checking the table, and you are making connections according to switches in sector 1, but multiport has inout at sector, not switch, so it is not very clear to me, how are you comparing to switches in table, but pultiport is comparing to sector input. Also, why is only sector 1,3 and 5 used to make sine waves ? The rest explanation is very nice, thank you for it !
I'm not sure if you're still worried about this question. But I finished my Plecs model with the same steps (or even with the same reference paper). For the first question, the switching time of S1, S3, and S5 should be calculated according to that table but not of Sectors 1,3 and 5. That means, e.g., the first signal switch should be used to determine the switching time of S1 in each sector from 1 to 6, the second for S3, and the last for S5.@@gorkapascual
Very interesting video. But I still don't understand where the modulation signal which has the form of a hump wave with a frequency of half of the input frequency is generated from?
I am new to this SVM idea and have few questions. Will be thankful if you answer. Why only Sector 1,3 and 5 are used to generate sine1, sine2 and sine3? I did not get this point. Secondly, if I want to change the switching pattern V1, V2, V0, V2, V1 for one switching time T_z. The next steps will be the same to generate the gate signals? One more question, how the switching frequency is decided? from carrier signal or from T_z = 0,02?
I can only answer your last question since i am new to this SVM too. yourr reference signal or modulation signal frequency will be your inverter output voltage signal frequency. so if you want a ac voltage with 10kh frequency in inverter output. your reference signal or modulation signal frequency must be 10khz. your switching frequency should be 10 times or higher then reference signal frequancy. so it will be 10*10kz=100kz in your case. this switching frequancy is the switching frequency of your carrier signal. { this is due to the fact that the output inverter voltage will also include this switching small harmonics. and it will be easier to filter this high switching frequency harmonic using a low pass filter. low pass will fiter then allow the low frequency signal which is our reference frequency and block the high frequency harmonic which is the switching frequency to get the exact pure reference voltage in the inverter output.} simply: your carrier signal will specify how fast switches are turned on and off in inverter and your reference signal(modulation signal) frequency will specify the period of your inverter output voltage
I'm not sure if you're still worried about this question. But I finished my Plecs model with the same steps (or even with the same reference paper). For the first question, the switching time of S1, S3, and S5 should be calculated according to that table but not of Sectors 1,3 and 5. That means, e.g., the first signal switch should be used to determine the switching time of S1 in each sector from 1 to 6, the second for S3, and the last for S5.
@@arifinnugroho9191 the explainer has made mistake in this step. It is we must take sine reference generation for top switches only (S1, S3, S5). So the multiport switch represent S1, S3, S5. Just draw signals as per sector into switch
the switching time of S1, S3, and S5 should be calculated according to that table but not of Sectors 1,3 and 5. That means, e.g., the first signal switch should be used to determine the switching time of S1 in each sector from 1 to 6, the second for S3, and the last for S5.
you have to increase the sampling time of matlab simulink model setting > solver > fixed time step then under advanced settings > change from auto to 1e-4
Good evining sir, i am Prasad, i have designed the space vector modulation generator as in vedio. But i got the output like this. Can you suggest me the error in my circuit.
@@ttai_51 I am getting distorted sine wave which are generated using T1, T2, Tz. They are close to what you showed but not exactly matching. Can you please help me to figure it out.
Thank You so much Sir.. this is the best content on svpwm..i hv picked my error by seeing vdo..thanx a lot
Sir I have a doubt here we are using vref=2/3 VDC*0.9
So what is the purpose of vref ...that we find in first step using Clarks transformation
At 14:20 , you are making connections while checking the table, and you are making connections according to switches in sector 1, but multiport has inout at sector, not switch, so it is not very clear to me, how are you comparing to switches in table, but pultiport is comparing to sector input.
Also, why is only sector 1,3 and 5 used to make sine waves ?
The rest explanation is very nice, thank you for it !
I have spent 3 days trying to find the issue. Finally when i got it, i have seen your comment :(
@@gorkapascual bro please can you send me the file I am not getting the same wave form
I'm not sure if you're still worried about this question. But I finished my Plecs model with the same steps (or even with the same reference paper). For the first question, the switching time of S1, S3, and S5 should be calculated according to that table but not of Sectors 1,3 and 5. That means, e.g., the first signal switch should be used to determine the switching time of S1 in each sector from 1 to 6, the second for S3, and the last for S5.@@gorkapascual
Very interesting video. But I still don't understand where the modulation signal which has the form of a hump wave with a frequency of half of the input frequency is generated from?
I am new to this SVM idea and have few questions. Will be thankful if you answer.
Why only Sector 1,3 and 5 are used to generate sine1, sine2 and sine3? I did not get this point.
Secondly, if I want to change the switching pattern V1, V2, V0, V2, V1 for one switching time T_z. The next steps will be the same to generate the gate signals?
One more question, how the switching frequency is decided? from carrier signal or from T_z = 0,02?
I can only answer your last question since i am new to this SVM too.
yourr reference signal or modulation signal frequency will be your inverter output voltage signal frequency.
so if you want a ac voltage with 10kh frequency in inverter output. your reference signal or modulation signal frequency must be 10khz.
your switching frequency should be 10 times or higher then reference signal frequancy. so it will be 10*10kz=100kz in your case.
this switching frequancy is the switching frequency of your carrier signal.
{ this is due to the fact that the output inverter voltage will also include this switching small harmonics. and it will be easier to filter this high switching frequency harmonic using a low pass filter. low pass will fiter then allow the low frequency signal which is our reference frequency and block the high frequency harmonic which is the switching frequency to get the exact pure reference voltage in the inverter output.}
simply: your carrier signal will specify how fast switches are turned on and off in inverter and your reference signal(modulation signal) frequency will specify the period of your inverter output voltage
I'm not sure if you're still worried about this question. But I finished my Plecs model with the same steps (or even with the same reference paper). For the first question, the switching time of S1, S3, and S5 should be calculated according to that table but not of Sectors 1,3 and 5. That means, e.g., the first signal switch should be used to determine the switching time of S1 in each sector from 1 to 6, the second for S3, and the last for S5.
What are switching states for nested T type multi level inverter is it same or different
Sir very good explanation
Thank you, stay connected
Why are only Sector 1,3 and 5 used to generate sine1, sine2 and sine3? I did not get this point?
same question hope the author will reply as soon as possible
@@arifinnugroho9191 the explainer has made mistake in this step.
It is we must take sine reference generation for top switches only (S1, S3, S5).
So the multiport switch represent S1, S3, S5. Just draw signals as per sector into switch
the switching time of S1, S3, and S5 should be calculated according to that table but not of Sectors 1,3 and 5. That means, e.g., the first signal switch should be used to determine the switching time of S1 in each sector from 1 to 6, the second for S3, and the last for S5.
Awesome explanation
Thank you, keep watching
Thank you
We need simulation of open ended induction motor please
Tz should be switching time period right?? not 20ms
time 5.38
when you do the first simulation what do you mean by output of subsystem alpha is it V_alpha or what?
Hello Sir
Result sin waves are zigzag in nature and not what you are showing. Can I know the reason and how to improve it.
can try by changing the setting of the scope
@@ttai_51 Hi, I have mail you kindly respond
same problem can you tell me the solution sir
lower carrier frequency, decrease sampling time and use a filter
you have to increase the sampling time of matlab simulink model setting > solver > fixed time step then under advanced settings > change from auto to 1e-4
Triangle wave generation at last...the value of gain and pulse generator is what???
tz comes from the frequency of sampling or the frequency of the carrier?
nothing. Tz comes from the frequency of switching. in addition, Tc is equal to half of the Ts (switching frequency).
Pls can you show how you got the ABC_DQ_Cos_Park 1 block
Good evining sir, i am Prasad, i have designed the space vector modulation generator as in vedio. But i got the output like this. Can you suggest me the error in my circuit.
Matlab file is in description box
But plz tell me how you generated triangular wave for comparision
You can find it in this series
V by f Series: ruclips.net/p/PLUXPzR4o3-PeiMZpa0_fp-yhYjBl3Sogv
Can someone explain how he use the multiport switch to generate sin waves compared to the switching time table? Thanks
Nice Sir
Thank you, keep watching
Hello, may you share the simulink model, I m using Matlab 2022a
What is the value of variable k in gain?
1
Hi sir, the explanation is very good, can you please share the slx file please!
SoI get zigzag sine reference signal from time calculation pls what can I do to get perfect waveform as like you sir
@@subithaj-x9q email tech.talks.team51@gmail.com
How to change duty cycle for stator input voltage vector?
Why only sectors 1,3,5 give output of sinewaves 1,2 and 3 respectively???
same question hope the author will reply as soon as possible
why only sector 1,3,5
Thank you
Can you make video about
Open ended induction motor drive
Please ❤🌸❤
can you please share the SLX file sir
Sir, how can i contact with u?
Hi, thank you, you can mail me at addchannel63@gmail.com, keep watching and sharing
@@ttai_51 I am getting distorted sine wave which are generated using T1, T2, Tz. They are close to what you showed but not exactly matching. Can you please help me to figure it out.
could u send me the file
Can you please send me the file
@Tech Talks
Can I contact with you by mail please?
sir, can u give your phone number or mail id for doubts clarifications
addchannel63@gmail.com
Contact given in the description box