Design of LCL Filter for 3 phase grid connected inverter.
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- Опубліковано 10 лют 2025
- In this video, i am explaining the step by step method of designing of an LCL filter for a 3 phase grid connected inverter. feel free to post your doubts in the comment section. if you like my work, please consider subscribing to this channel. Thanks for watching.
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If you like my work, please do consider subscribing to this channel.Thank you. ua-cam.com/channels/58DFky5Fm9AxH9UmWHHYmQ.html
Thanks alot! This video is really helpful.
Glad it was helpful!
@@TechSimulator PDF reference of this LCL design method please
@@TechSimulatorwhich iee are you using please?
Thank you for sharing knowledge. It is helpful for understanding the designing.
I really can't express how helpful your videos are to my studies. Thank you so much!! I'll be sure to send me friends to your channel.
sir the calculation you are doing for calculating inductance is showing the negative value of inductance, please have a look at calculation negative value of 76.68uH at time 06:19
Thanks for your teaching! From Vietnam.
Glad it was helpful!
@@TechSimulatorwhere is the dc voltge?when do we use it?
@2:08 , eq(2) is missing + Vg, unless you set it deliberately to zero in order to get specific transfer function of a MIMO system. The best practice is to first define abcd parameters of this two port network.
You are good....keep it up
Thank you, I will
Excellent explanation ..many thanks
Thank you for the video, it is very helpful.
For the equations in step 4, what is the difference between W_sw and omega_sw.
I think S and W relate to the rated power of the inductor, but this section left me a bit confused.
Thank for the great video. Is 230 V, phase to phase or phase to neutral? You have used it to calculate C while the S is per phase. It should be both per phase or phase to phase.
Its phase to phase as indicated by the Vp-p. Hope that helps
@@benjamingomado5064 if its phase to phase then phase to neutral voltage is 132.79V. Why you are using this no one know ....can you please tell me the source of this calculation mentioned in the video.
@@hocho7254 it should be line to phase RMS voltage. Because the capacitors are in star connection and he divided the apparent power by 3. So, single phase equivalent circuit, where all belongs to phase-neutral.
Thaks for the info.....
Ac to dc Rectifier using igbt also contains the same calculation of selecting the capacitor and choke or its different, please make the vedio if it is different...
thanks a lot for very informative videos
🙏🏻🙏🏻
Thank you very much for you effort and contribution.
Hello, Thank you for this informative video. But what is the value of pi?
and how you got it?
Very nice explanation. Could you tell which IEEE standard states current at switching freq is 0.3*Ig and also which standard states voltage drop as 20% of Vgrid?
the 0.3% is the cuurent harmonic, im also looking for voltage drop though
hello, sir why you do not take Vg in equation (2) [ Vx equ. ] ???
Can you share the references book of calculating L and C values?
The video is good: Can you please help with a reference to your analysis?
Helllo, can you tell me the source (paper/book) for this design?
Many thanks for this video, it is the same consideration for a 3 phase PWM rectifier?.
Sir,excellent video which is useful for my Research.Thank you .Please can you post the three phase grid connected inverter with LCL filter.
I have already made the video.
Thanks toi very Michel for jour explication
Isnt equation 2 missing Vg?
excellent video and very helpful..pl make video on calculation on dc capacitance also.
Thanks . Designing of DC BUS CAPACITOR IN NOT AN EASY TASK, it involves lots many things. I will definitely try to make one video.
please do a vidio that how to calculate bidirectional dc converter@@TechSimulator
Formulas
how can u write the equation 2 like this??? this should be Vx-Vg = Ig sL2
you wrote T.F for LCL filter, what is te T.F and equation, in case of LC filter, can I consider same formula
Thank you continued
Hello Are you able to please share the reference article/ book you have used for this calculation please?
thank you so much
Sir, please, does the design of the filter differ if it is connected to a variable-frequency actuator of the type active front filter drive, I mean that the network is the one that feeds the VFD .... Thank you very much .... I am waiting for your response as soon as possible
KAMIL BERDAN
We used to have an inverter at home and whenever we would turn on the fan using it, a loud buzzing sound would be made. Now I know that it was because the inverter did not have any filters and the fan's rectifier was getting rekt. It was a cheap desi inverter.
What type of harmonics does it filter?
Very nice video👍. Can you please share the reference paper.
Please make similar vedio on sine wave output filter for IGBT based pwm VfD
Thanks
sure will make
What is the IEEE standard that you are referring to?
Why inductance is calculated differently for three-phase and single-phase？
Thanks sir for this very helpfull video.
What about of LCL Filter for 3 phase three level inverter?
I am working on it.
@@TechSimulator have you uploaded LCL filter for 3 phase inverter ?
Sir please make a video design and simulate active filter of grid connected solar pv system with three phase inverter.
will try to make
dear sir, why you divide the power by 3, not sqrt(3)?
Excellent video. Could you share the equations source?
hello you can easily find it IEEE articles
Can you link the IEEE standar you referred to?
sir if grid is not connected then how can i desined the filter
can you suggest me any book for designing LC filter
can you do droop control in inverters
What's the method when the same LCL filter is connected in delta connection
Is it applicable to 5 level inverter
Why you are using 10kHz as switching frequency....is there any method to select switching freq......please share me.
Selection of switching frequency is based on power density, size, max permissible loss, efficiency etc
Is there any difference in the calculation based on the switching method of the inverter ( Square wave switching and PWM switching)?
Btw thank you very much for the video. It was a big enlightenment.
I need formula for input 3 phase grid filter for converter
Hello can you know what is your reference for this
Hi . With regard to equation2 , i do not understand why you can say Vx=Ig sL2 . What about the voltage at the output of the filter ?
The simple V =IR was used in that calculation. The impedance of the inductor is sL in the Laplace domain multiply by the grid current(Ig) flowing through it. And so Vx = Ig sL2. Hope that helps a bit?
sir, Kindly tell why rated power is divided by 3
designing per phase, so total divided by 3
@@TechSimulator why is voltage considered to calculate taken per phase? V = 230/sqrt(3)
Can you post a simulation on the same topic? I am working on a project and I have some doubts regarding control parameters. It would be of great help if you could share some means to contact you (mail id or phone)
Equation 2 is wrong. Vx means voltage between point X and ground.
Sir i mailed you for a project which requires active lcl filter with predictive control. Please help me make the simulink file. I am also ready to pay the appropriate amount for the project.
Can I get his mail id?
the second equation is not correct, is it??
how to calculate dc link capacitor value? please suggest me some reference
How to design L filter?
why I get negtive number ?
I dont even know why I paid my college fee for 😭😭
How do calculate the inverter kva and switching frequency
i didint calculate it. i just took some values for the design. you can also choose any kva value based on your application
Are you currently working in any research project, I would like to collaborate.
contact me at ashacademy01@gmail.com
thankyou very much
Thank you so much