Three-phase stand-alone inverter control design with a PI controller using MATLAB Simulink
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- Опубликовано: 9 фев 2025
- This video gives you a step by step tutorial for designing a three-phase standalone (islanded) inverter using MATLAB simulation software version 18a.
*Correction
The switching frequency is 10,000 Hz or rather 10KHz.
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Your support is highly appreciated. Follow the link below and learn how to design a grid-connected inverter;
*Grid Connection
• Three-phase grid-conne...
*SPWM Technique
• Three phase sine PWM i...
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The following are the links to some of the references used for
control loop design
scholar.google...
and for the filter design
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Like it, great Job 👍
Thank you for simulation. Could you say that how did you calculate values of inductance and capacitance? or could you advise a paper or thesis name? Thank You.
Thanks for your great work. I have two questions
1. In this simulation is it possible to enhance fast transient response?
2. Did you follow any reference paper? or just tried something new by yourself? if from any published paper then I'd be so grateful if you could share the reference. Thanks
Yes, it is possible. You may need to change a few things in the voltage and current controller. Kindly check in the description box for the references.
@@pmctech1415 May I have your email, please?
@@pmctech1415 Thanks for your reply. May I write you an email?
Thank you madam for the video
can you show the modulation signals of your model??? It is not sinusoidal coming
Hello, you can build your own SPWM by following this link, ruclips.net/video/rrcEzz-FxHU/видео.htmlsi=IDutoIJNYrvPdaXN and you will easily see the modulating (sinusoidal) and the carrier signal (triangular). There are also some other videos on the channel with PWM built by ourselves instead of using the one from the Simulink library.
Hello I have an issue after realising the the circuit it shows error in port width or dimension output port 1
thank you for this video
some one can expalin me the current and voltage loop control
thank you
thanks for your sharing. great video. however, i have a question on the filter. why you use RC instead of C only?
You are welcome, and thank you for watching. R is connected in parallel with the capacitor as a damping resistor to reduce the oscillations. If your waveform is OK, there is no need to add it.
Could you recommend a refrence about this topic?
Kindly check in the description box of this video
hello, i wanted to know how did you determine the output voltage for the inverter, as well why did you choose 10k HZ , and what are the books that or reading matrail that can help design an inverter for a solar array system conncted to the grid.
The switching frequency depends on your application and the type of switches, switching losses and many more. Output voltage equally depends on the application. For the solar array system please check on Google scholar there are a lot of very helpful materials from different researchers especially for grid connected inverters.
What documentation or research paper for designing the LC filter?
Kindly check in the description box of this video: ruclips.net/video/anz5azfvh-0/видео.htmlsi=pCCgr53Rlj_jb1jp
can you please reply...Output of pi(s) is voltage how can it be subtracted from current value,at 12:17
Hello, the output of the PI controller is the Id and Iq references, which are summed with the measured currents from the grid side.
@@pmctech1415we calculate l1 and L2 ...c?
I have a question for the value of the gain, why did you select 2*pi*50*(9.94e-6)? (9.94e-6) and (10.2e-3)
Hello. The voltage loop gain value is 2pi*f*C, where f is the frequency, and C is the filter capacitance value. For the current control loop, the gain value is 2pi*fL, where L=L1+L2
Hello, pls I sent a mail you on the changes I need to make for grid forming converter. Pls help me out.
Can you provide the matlab file exchange link for this simulation.
Could you please share how you calculate all the values you in PI, gain and filter?
The PI was designed by the gain tuning method where you start with a small value of Kp and increase gradually until you reach neutral stability. For the filter filter design, the video will be shared soon.
@@pmctech1415 Thanks a lot. Looking forward to it.
The video looks very interesting. If i make the system grid connected, what changes need to be made in the Simulink model? For instance, the LCL filter would remain same?
If you are designing a grid connected, you need to eliminate the voltage control loop since the voltage will be controlled by the grid. Kindly follow this link to see the grid-connected inverter design ruclips.net/video/V_wfVstfxMc/видео.htmlsi=rKn52MA4GlGFSSXJ
@@pmctech1415 yes i understand that for a grid following concept using PLL. but for the grid forming concept the droop controller should be connected with an energy storage like battery. is it possible to upload a video like that?
Yes I too need that video can u share please?
Grid forming inverter model
Thank you for explaining perfectly 🙏🏽. Is SVPWM control also applied in PI control of three phase inverters?
Thank you. Yes it can be used
@@pmctech1415 i still confusing with the space vector modulation, any help ?
great video! Was this based on the same paper as your grid-connected simulation?
The parameters are the same as the grid-connected, but the voltage and current controllers are different.
can i use the same inverter for islanded mode of microgrid?...what is the name of control strategy used?
Hi, it is actually an islanded microgrid, however No special control strategy is used but you can implement your own control strategy such as droop.....
@@pmctech1415 do you mean this is a simple grid forming inverter?
@@tinytale5406 check this simple grid forming inverter
ruclips.net/video/Kxa1t4khvko/видео.html
@@pmctech1415 do you have any paper of this...i am not able to understand function of these?
actually i am new in this research and i am aiming to develop simulink model of microgrid ...and i need converter in grid connected islanded mode...
but i am not able to get the model...intially i need it without any control technique
congratulations for the video!
I have a question...
Why did you use a constant value of 9.94e-6 and 10.2e-3 in the voltage and current control loops?
Hallo, thank you for watching. 9.94e-6 is the capacitor value while 10.2e-3 is the value of L which is grid side inductor plus inverter side inductor.
please share its simulink
@PMC Tech
At 1:18, you wrongly described the switching frequency as 10 thousand kHz, instead of 10 kHz.
Can you make a video on Multiple (say 4) Parallel-connected Droop-Controlled Islanded Inverters?
You're right thank you for that. It's 10KHz. Yes I will do.
How to contact you? Email, WhatsApp? Actually, I am working on Distributed Control of Microgrids.
@@engineer4773 kindly check in the description box for the Facebook link.
How do we calculate the parameter of (Ki, KP, Gain)?
Hallo. Firstly set the value of the desired output eg 20A in our case. Then choose a small value of Kp and set Ki to zero. Kp increasing the value of Kp until you reach neutral stability. Thank you for the support.
How can I communicate with you.
Thank you for watching. Kindly check the Facebook link in the description box or on the channel page