MPPT Control of Grid Connected PV inverter
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- Опубликовано: 21 авг 2024
- Grid Connected PV and MPPT Control
Grid connected inverter
grid connected pv system matlab simulation
Maximum power point tracking
Grid connected PV
Grid connected PV inverter control
Thankyou so much sir ... Very helpful ... Too much hard work... Boon for people working in this field ....
Thanks for interests. 🙂
Hi Naki! Thank you very much for making such useful videos on PV system. However, I wish you could make a video of complete PV system, i.e. right from starting with solar panels, then Boost Converter, then MPPT, then 3 phase inverter, then transformer and finally the grid. I need complete design and Simulation Sir.
Plz Plz Plz help me!!!
It is perfect Naki.Thanks for such a useful video.
Thank you Farzaneh 🙂
👌👌👌 Learn and developed PV model project sir , I request you to sir,Pl develop hybrid model and its control system sir
indeed its great work , but please can explain the control system with more details and on any paper you are depending on . thank you very much
Where did he get the signal builder from at 30:42 . And also i'm unable to get the same graph for the same as his
Hello, your videos are exceptionally helpful but it would be even better if you could talk and explain the process throughout the design. Anyway, really helpful video.
Hello, thanks for suggestion. I will share videos with audio.
Great. Keep on uploading videos.
Thank you 👍
Man, I love you. The given simulation and explanation of its work are great. Great job, BIG THANK!!!!
@Zhansen kindly can you mail me the Simulink file inams5379@gmail.com
thanks
Dear sir, cok tesekkur ederim for your videos, I've been learning a great deal from them by redoing your models from the beginning. I happen to have difficulties attempting this one. I believe I'm sticking to your steps quite accurately but my final results are off, mostly my reference current seems to remain 0 at all time and my reactive power is sitting at maximum as soon as my irradiance starts..
My guess is that it comes from the MPPT algorithm but I happen to be beginning on the topic and honestly don't know much about how to fix, if you could assist me or point me toward where to find help it would be greatly appreciated. Iyi gunler dilerim!
First of all, thanks for your interest in my videos. Please check the inverter control algorithm. To do this, add constant irradiation for PV(500W/w2). After that, add a constant instead of Iref. Then, start the simulation and increase the reference current constant step by step. If the inverter control side works properly, please let me know. Otherwise, please check the inverter control algorithm step by step.
It will be better to give proper reference paper and explanation
Also if you have time make detail video on VSC control and designing from scratch with proper designing
In the below paper, I used the same method to combine MPPT and MPC. You can check it. My other paper which is related to this topic will be published in a few weeks. I will share it with you.
Paper: A Model Predictive Control Based Hybrid MPPT Method for Boost Converters. International Journal of Electronics (in publish)
I think the control strategies are very similar to my previous video. But, if it seems confusing, I may make a video about it. Thanks.
@@nakiguler Welcome Sir... Strongly appreciate your work
@@nakiguler Sir I did practice on the model but having some bugs in it, and also I don't know how you constructed the signal in signal generator.
I did email the model please go through it....
Hope to hearing from you soon
Thanks for the video! I want to know why didn't you decouple the dq axis components in the current control of the inverter? Thanks!
Thanks for the videos！ i get a lot. thank you again！！
Thanks
Great video thanks for helping...
Can I know how to control the reactive power using this.
Great! Thank you so much! Please, keep on uploading videos
Thanks.
Hello!..There are few things I wanted to ask...Can we add a boost converter into this and if yes can i control it with the same MATLAB MPPT function or do i need to make it separately..and how do you calculate the deltaD..for some you take as 0.125 and for some 0.01..like how do we know what to take!..
Hocam ellerinize sağlık bu hususları karşılık beklemeden paylaşanlarin sayısı yok denecek kadar az. Yakın dönemlerde Gazi TEF te okumuşuk umarım bir gün bir yerlerde karsilasiriz. Görüşmek dileğiyle.
İlginiz için teşekkür ederim. Arada üniversiteye geliyorum, görüşmek dileğiyle
Dear Sir, I am unable to get the output. my pV power is not being tracked, since reference current is not correct. Also inverter current is not following the reference. Can you please help me in correcting the same? 🙏
Sir, Could you please give a video on Three phase Bidirectional controlled Battery Management on a Grid Connected System for a Benchmark LVAC Microgrid of 415V 50Hz. Thanks in Advance Sir.. #GridConnectedBattery
Good content and presentation
Thank you
Thankyou. Great work !
For those of You, can't fix the output try this. Use Iref_init = 100 in the MPPT code. everything else is same. I think It should work
You are my GOD ,sir.I have been disturbed for a long time until I see your comment!😊
Hello sir, I like your channel and is best for a brief explanation. Please make a video on MPC for grid-tied converters
Hello, thank you very much 🙂
MPC is a complicated theory to explain in a video. But I suggest one of my paper to you. If you have a problem you can ask.
MPPT Based Model Predictive Control of Grid Connected Inverter for PV Systems
@@nakiguler Great work sir always appreciations for you sir!!!!
@@shafquathussain5545 many thanks 🙂
@@nakiguler Sir please guide me I want to start working on "MPC for power electronics", so should I start from reading different papers or reading from a book? Kindly guide me.
Merhabalar Naki hocam.
Yeni başladım, videolarınız çok yardımcı oluyor. Emeğinize sağlık.
Mean irradiation grafiğini nasıl elde ettik anlayamadım.
Şimdiden teşekkür ederim.
Kolay gelsin !!
Merhaba, öncelikle ilginiz için teşekkür ederim. O grafik yada benzerini daha önceki videoda paylaşmıştım. Bu linkteki videonun açıklamalarına bakabilir misiniz? ruclips.net/video/CLbLkmci5SU/видео.html
Problem olursa yeniden yükleyebilirim,
Kolay gelsin.
@@nakiguler İlginiz için teşekkür ederim
Hi Mr. Naki,
In the model, you used the MATLAB function of MPPT which is different than the one used in boost converter modeling.
I would be grateful if you could give some ideas about it or share the function block.
Thank you.
No sir ask someone and help I am one of the followers of you and you channel.
I need Matlab simulation of faults voltage, current,impedance parameters.plz sir urgent
Thank you for your interest. Really, all of my friends work on power electronics. Did you try to ask some authors of related papers?
thank u very much for helping us
if we want add to this model a battery with bidirectional converter how can we do this?
I wish you all the best
You're welcome :)
You should add it to DC point of the system(input of the inverter). You may need different system design. Because, the battery will be in charge and discharge. It requires a management algorihm which will provide a power management between all the sources and loads.
hello sir, first of all, 1 love your work, I recently started to follow you and i can't stop ..lol.... really appreciate what your doing for others...... I don't understand how did you get that signal for irradiance to apply in the PV array; (signal builder); did I miss a video for that or something ???
Thanks for your interest 🙂 you can find the irradiation curve in instructions below the video: ruclips.net/video/CLbLkmci5SU/видео.html
@@nakiguler hello again Sir, my graphs result are getting really noisy even tho i have done it step by step the same way you did. Can you help me please?
Could you please check filter parameters and sampling time?
@@nakiguler I used the same as yours, still its very noisy. Also active and reactive power showing zero.
Hello, how to make a single phase inverter like this. Thankyou
Thank you for your previous supports. Recently, I am researching about sliding mode control for PV array grid connected. But I have some problems. Can you give me some supports? Thanks
You're welcome. What is the problem in your system?
Hi Naki, i noticed you skipped the dc/dc conversion and/or energy storage, do you believe this is viable to implement?
Since the inverter is basically a buck circuit, one should connect a lot of pv panels in series to get enough voltage, shading on one panel could impact the output considerably.
The idea seems tempting for the costs though
Hi, yes I believe and I know some implemented systems. As I remember(I am not sure), ABB inverters are working like this.
@@nakiguler Thanks, it looks very interesting honestly!
Hello Sir, thanks a lot for your great effort? I want to design a filter of my own. Would you kindly suggest a text or tutorial regarding the filter parameter?
Hi Naki, thank you very much for helping us. I would like to use this system to simulate a residential system with 10 PV modules in serie and 2 parallel strings. I've tried this but it's not working when i put less than 16 modules in serie. What do i have to change in this model to get a working system with only 10 modules in serie?
Very informative video Sir. How can I incorporate a wind turbine with the PV system and supply to grid?
Great work sir , when I use the refrence current in Mppt algorithm the system worked just when increasing mppt iraddiance not deacresing , what do you think is the reason ?
Could you make Zero export solution?
Hey Prof, you didnt use any DC-Regulation ? Can u tell us why ? yet it works .
Thank u so much
Hi, because it is single-stage conversion.
Respected Sir. In Simulation only PV, Inverter and Three Phase Source (As Grid) is present and there is no load connected, then why current is flowing from Inverter to Grid when there is no load connected?
Hello! Naki...Thanks for uploading the detailed video of Grid tied design. I need a small help we are going to simulate the same for 25KW (10 Parallel strings and 11 Series-connected modules). I did this, but there was a problem, The ipv graph fluctuates very much.Can u help me out to control this.
What are the change i need to do to on the parameter settings (Resistance, capacitance the parameters for MPPT(deltaD, V)?
) to achieve the desired output of 25KW
Kindly Help
looking for your positive response
thanks for this video. i have a question why you compare Iref(Ipvmppt) with Id
Hi Naki, Why didn't you put diode in series with PV array?
Im having a big problem calculating the PI regulators for the PV panel "Atersa (Aplicaciones Técnicas de la Energia) A-250P".
If someone please could help me find the values for those regulators i'd give him/her a big hug.
Thx!
The parameters depend on your system power, voltage, and current. You may try to use a small value for Kp then increase it step by step.
Hello sir hope you are okay????God keep you safe and healthy
Hello Ansari, I am good. I hope also you are doing well.
Hello sir you are doing very well...sir i need some help for my project which is design of Model Predictive Control(MPC) for the energy management of micro grid.. sir plz make video on MPC algorithm for boost converter .Thanks
Hello, Thank you. Explanations of control algorithms are hard in a video. Maybe later, I will add MPC videos. But, I have a paper about MPC of boost converter as below. It may help you.
Erdal Irmak, Naki Güler (2019). A Model Predictive Control Based Hybrid MPPT Method for Boost Converters. International Journal of Electronics (SCI), Accepted paper (in publish).
Please Sir make a video if possible on "How to ensure the synchronization between Grid and Microsources
You may check my previous video, I explained it step by step.
ruclips.net/video/6byxdtE1lXM/видео.html
Sir, Your videos really helped me a lot in designing control logic for inverters. I'm now working on a paper of "Electric Spring for Voltage and Power Stability and Power Factor Correction"- IEEE trans on industry application,vol, 53. July/aug-2017 , but facing some difficulties in designing the inverter control logic.
Can you help me on that?
Thanks in advance.
I am sorry, I have no experience with this topic. What is the problem with inverter control?
@@nakiguler In this system the inverter is connected in series with a non critical load and the whole system is connected across a critical load, and the system is fed by a intermittent source. To keep the voltage across the critical load constant, we need to trigger the inverter in such a way so that the inverter can supply required amount of active and reactive power.
For this purpose I have taken single phase dq transform of the critical load voltage and line current and synchronized this with the load voltage using PLL , after that I compared the Vd with the constant reference voltage and Iq with zero( to make Id have the same phase as Vd, and have a good power factor), and then I have taken this two error signal and performed inverse dq transform to create the reference signal for pwm generation.
But the system is not working properly.
Is there any fault in my logic??
Another question-
How to understand different kinds of control logic(like voltage control, current control, power control) for single phase grid connected inverter??
Any reference?
nta hbiibii ntaaa chriiikiiii
golha o 3awedha
Which version of Matlab you are using for this simulation.
How do we get the same input as yours in the signal builder,? I am getting a different graph. Can u please explain it.
hello; can you share with us how did you implement the model of your article "An inverter design for a new permanent magnet
synchronous generator"
Hello, I can't share the full model which is used in a paper.
Standalone Wind energy conversion system tutorial please.
sir pv mppt is working for Rload but when ever i connected dc motor the PV voltage is getting reduced and mppt is not tracking to max point why so??
Can u make a tutorial on MPPT for wind turbine?
Hello, i have simulation of a single stage, single phase flyback inverter, feded by a pv array. The control is okay but the output current can't be in phase with the grid voltage, even i have a PLL controler but nothing works, with all the modifcations that i do current and voltage can't be in phase, current is lagging about 90 degrees, what can i do?? :(
the v_pv has voltage when the irradiation is zero. How this is possible?
It is possible, because voltage may change depends on power. If the power is zero, open circuit model will be seen.
@@nakiguler
Thank you so much sir for ur answer .
sir can u told that how we get sufficient amount of voltage which can feed in grid without use of boost converter.
Is this due to inverter doing some kind of boosting of volatage or due to changes in mppt algorithm?
And can give me your paper link ?
Great 👍🏼👍🏼
Which reference you have used to design this system, can you share with me?
Thank you,
I used the same MPPT type in this paper:
Erdal Irmak, Naki Güler (2019). A Model Predictive Control Based Hybrid MPPT Method for Boost Converters. International Journal of Electronics (SCI), Accepted paper (in publish).
My other paper that is related to this topic will be published in a month. I will share it with you.
Thank you
Please sir
Is there any simulation for off grid system ?
Thanks
Or can you share with us any paper or book for this propose
HI, I would like to ask, why isn't the current Ia, Ib, Ic zero when the irradiation is zero. Is it because of some noise in the signal? The inverter shouldn't be working when the reference current is zero. I need to find a reason why the THD is not zero when the irradiation is zero. If anyone knows please tell me. Thanks
Respected
Please try this one with Vref instead of Iref
Please share the simulink file
What is software name please????
MATLAB
matlab
Sir, Can you please upload a video on Sliding Mode MPPT(P&O) Control for Standalone PV systems... it will be very grateful 🙏
Dear Aman, I know you, you are following my channel. But, I have a limited time to make a video for the channel. Sorry, it may be a complicated system. Firstly, I want to complete the basic things. Then, I may think about this.
Hi , I m unable to get the output in this construction in Simulink and it shows errors. Could help me to resolve the issue.
I am getting the following error -"The "FixedStepDiscrete" solver cannot be used to simulate block diagram 'PV_inverter_mppt' because it contains continuous states"? Pls tell what to do @Naki GULER
Dear Sir, how are you? Very good your videos, good job. Could you by any chance give me articles that you have published regarding this video?
Many thanks Dear Daniel, you may check this: MPPT Based Model Predictive Control of Grid Connected Inverter for PV Systems
Great sir, can you provide reference papers or materials to work on this further
Have you tried it...if yes please tell me how to get to ride of error
I have a paper about it. You may check it,
N. Güler, E. Irmak, 2019. MPPT Based Model Predictive Control of Grid Connected Inverter for PV Systems, 8th International Conference on Renewable Energy Research and Applications (ICRERA) Brasov, Romania, pp. 982-986.
Hi, what's the function of the RC-filter before the inverter en the L-filter behind the inverter. And what's the theory/reference (saw your paper) /formulas behind the values of these blocks? Thank you in advance!
Hi, actually it is only C with non-ideal model. I am selecting it by trying, but as I remember some papers are published about it. I have no details. You may find the inverter filter design in my previous video. Which block, could you please clear it "And what's the theory/reference (saw your paper) /formulas behind the values of these blocks?"
Naki GÜLER thanks for the response! I mean which formula do u use to calculate the values (for R,C,L,..) used in both filters. And what is the function of the L-filter behind the inverter?
Sir, i want to ask something make me so confusing,
which value that i need to change if i want to scale up the output power to 500kW?
thank you please give me explanation sir🙏🙏
Sir, why didn't you use boost converter stage between PV panels and Inverter??!!
Because it increases the system cost.
Sir, Could you please share the Matlab file. It's being used in one of my projects. I have tried but I'm facing some problems and I'm unable to solve them.
I am sorry, I am not sharing the matlab files. But, if you write the problems to here, I can reply it.
@@nakiguler Thank you so much, I solved it.
Indeed, the video was very Halpful. Once again thank you
can you share the file of simulation i am facing some problem
dharmesh.zinzala123@gmail.com
Sir, how did you select the dc bus capacitor value?
Thank you for the great video. But I'm getting some problems. Can you help me?
Simulink detected an unspecified rate transition at output port 1 of block 'PV_MPPT_INV/Discrete PID Controller/Saturate'. However, Simulink cannot automatically insert a Rate Transition block because one of the following scenarios exists:
- Fixing the unspecified rate transition requires rewiring of the blocks;
- Simulink cannot choose an insertion location for the Rate Transition block because multiple possibilities exist;
- The unspecified rate transition requires the insertion of a Rate Transition block on a virtual bus signal.
- The output signal of this block is being logged.
- Either the source or destination is a state port.
Rewire the block diagram or manually insert a Rate Transition block to resolve the unspecified rate transition.
Please check the configuration parameters/solver ---- threat each sampling time... tick.
@@nakiguler I chose Discrete in Slover. But it says that:
The "FixedStepDiscrete" solver cannot be used to simulate block diagram because it contains continuous states
Long Nguyễn Văn, did you define a sampling time to PLL block?
@@nakiguler Yes, I did. Now I get the first error again.
Simulink detected an unspecified rate transition at output port 1 of block 'PV_MPPT_INV/Discrete PID Controller2/Saturate'.
@@longnguyenvan8419, I don't know why you getting this error, but could you please check the specifications at the 0:14.
You may use rate transition block at the input and output of PID. It will provide to work with different sampling times in the same simulation.
Where is single phase
Can we add a battery in this module?
how can use PV and wind mill in the above simulation
Hi Naki, what doe Tss refer to for sample time please (am learning MATLAB!)?
Can we get wind turbine PMSG tutorial ?
Hi your video is excellent. I have done the same but result is not similar to you. Can u pls send the simulation file. Pls share your mail id.
Thank you for your efforts, i have one question, i have 4 batteries and 1 super capacitor total power of 25 kw, each one connected to dual active bridge converter, then connected to grid through inverter, i cant get full power from inverter which is 25 kw the max power i got is 10 kw
There are a lot of reasons why you would get less depending on your circuit, if you did something similar to this video, probably your cuadrature current Iq is not set to 0, else if you implemented the converter circuits they must be operating at a range where you can draw power from the batteries for example a dc/dc booster circuit could need more current that the batteries can supply during a certain point i mean peak current, a capacitor could solve that.
The list goes on...
What is your control method? How did you decide the maximum power? And also, I agree with Cristian.
Thank you for your reply, well inverter control i used this:
ruclips.net/video/V8bps7KfHkw/видео.html
And for dual active bridge converter control i based on phase shift modulation
Cristian Matteo can make it more clear, which capacitor do you mean iam already put capacitor on input and output
By the way, the converter works in two mode , charging and discharging
Naki GÜLER battery and super-capacitor model is 50 v and 100 Ah , 4 batteries and 1 super-capacitor of total power is 25 kw , also the converter design based on rated power
How to calculate the MPC and MPPT algorithm efficiency
Dear sir,
I am getting this error near abc to dq demux pls help me to debug this
Invalid setting for input port dimensions of 'newpvpo/Demux1'. The dimensions are being set to 3. This is not valid because the total number of input and output elements are not the same
Component:Simulink | Category:Model error
Error in port widths or dimensions. Input port 1 of 'newpvpo/Goto1' is a one dimensional vector with 1 elements.
Can you please clarify, how a current source can be connected in series to a Grid. PV is a current source right?
What do you mean with the current source? Is it CSI?
@@nakiguler sir can you share this file on mail
Thank you for this video.I am now trying to do' MPPT Based Model Predictive Control of Grid Connected Inverter for PV Systems' but there is a error in the code."Variable 'x_opt' is not fully defined on some execution paths.
"here x_opt=voltage state
Can you give me any suggestion??
Please check Matlab function block codes.
@@nakiguler thank you for your reply.I corrected matlab codes and its now working
I'm watching this too, but my model keeps going wrong. Can you send me your model and let me learn it? Thanks.email：wangjicho23@163.com
Hello! Sorry to bother you again, but I had a problem with the following. I need to simulate 1 Parallel strings and 20 Series-connected modules per string. I did this, but there was a problem with MPPT. The ipv graph fluctuates very much ... Does the resistance and capacitance at the output of PV affect these fluctuates? And how did you determine the parameters for MPPT(deltaD, V)?
Really looking forward to your reply.
Hi. I had the same problem but i have resolved it already. Change Pmin value, depending on your new Pmax, to calculate different Lf value for filter and then change the capacitance to smooth it out. I have tried 100 kW pv array and capacitance of 250e-6 and it looks good.
@@maazelcz Thank you! Can I ask you a couple more questions?
@@user-bg1lg3fh7d Sure, if i can help i will
@@maazelcz Give me your google mail please
@@user-bg1lg3fh7d maazelcz@seznam.cz This is my primary mail
Is this model. Available in matworks? Please
Please, I tried to make this simulation, but this block, PID side if you can help me
Can you simulate a PV module?
how is the dc voltage maintained without a voltage regulator in the control loop?
Because MPP voltage is approximately constant in MPPT P-V curves. Actually, it gives information about the effectiveness MPPT algorithm. If you check the voltage, it should be same with Vmpp.
How do you determine PID parameters?
Hi Naki,
Can you share with us the paper of this model.
how you are controlling the DC link voltage
hello sir! Great video. I am having load flow problems in this circuit. All the power is flowing from the grid to my load & PV panel isn't supplying any active power. Please help.
How is reactive power? Could you please check the control parameters?
@@nakiguler all the active power is flowing from the grid to the inverter bus and reactive power from the panel is very less
Ok, please check all the references.
Sayın hocam, size bir sorum olacak. 1 MW bir güneş tarlasını DC baraya bağlayacağım. 1 MW gücünde bir DC/DC boost konvertör var mı?
Bu tip işlemleri genelde tek converter değil de küçük güçlü çok converter üzerinden yapıyorlar. 50kW'lık sehpalar oluşturup, her birinin önüne bir converter eklenerek yapılıyor. Central inverter ile de şebeke bağlantısı sağlanıyor. DA bara yerine AA bara kullanmak maliyeti düşürüyor. Doğrudan şebekeye bağlı 50kWx20 adet inverter ile yapılıyor uygulamada.
how can I get the MPPT and the mean irradiation?
In your video, you have not connected output port "freq". Also the 3rd output port of the Demux used after "abc to dqo" block is left unconnected. similarly, 2nd and 3rd output port of Demux used before "THD" block is left unconnected.
due to these reasons, output not coming exactly same as yours.
i have used the same irradiation system as yours.
Please help as soon as possible.
Hi, if Simulink doesn't like your unused outputs just wire them to terminator blocks from library. It has the same effect on their output, if you still have different result then the error is somewhere else.
How did you generate the irradiation pattern? Can you help me out?
Also I think that MATlab function program for MPPT is also wrong or incomplete has been shown............................
What is the problem?
@@nakiguler Thank you sir for your reply...........I emailed you the simulation file please sir help.
how to contact you? I have some issues with my Matlab task? please could you help me?
Hocam iyi günler benimde mezuniyet projem bu konuyla ilgilide projemde bu videoda yaptığınız bilgileri kullanabilirmiyim iyi günler
sir, i want to know how to make irradiation signal build
Why you left 1 port of PLL open and also 1 port of Demux open Please reply.............also you said you fixed some of the Problems .....please mention what are that problems.......................................... its also telling that ""The "FixedStepDiscrete" solver cannot be used to simulate block diagram 'MPPTandGrid' because it contains continuous states
Component: Simulink | Category: Model error""" 8 hours I invested Please sir help
I think, you mean open port of abc to dq0 transform. Because 0 component of balanced three-phase systems is equal to zero. If you check the system, it works based on P and Q control.
The problems are seen between 43:21 and 44:28. I mean these.
To solve the fixed step problem, please check all the blocks. All of them should have sampling time.
@@nakiguler sir i got the same probleme regarding "Output port 1 of 'pv_mppt_inverter2grid/PLL (3ph)' is not connected." and an other error , "Matching "From" for "Goto" 'pv_mppt_inverter2grid/Three-Phase V-I Measurement1/Iabc' not found" .... however, i've simulated the other model of your video "Grid connected inverter for photovoltaic (PV) system" without the "First input of PLL" nor the "goto of Iabc" and got results normaly ... here where I gave up .... HELP PLZ
I think I found the problem.. check the PLL sample time below . and for the Demux just leave it be in 3 inputs don't try it with 2 inputs only .. it didn't work with me .... don't know why yet
Where will i get this mean irrediance