For circuits to start with, I'd suggest to google "kw pfc" (without the quotes).

This will certainly come up with some controller ICs, plus a selection of circuit toologies.

I am not sure what means PFC. Maybe an inverter.

Try to search semiconductor suppliers. You will find application notes and datasheets of PFC drivers. Try to start with an example in a datasheet and change the schematic according to your requirements. Some semiconductor suppliers produce Evaluation Kit for PFC.

Linear Technology (Analog Devices) has a good simulation tool - LTspice - useful for designing. It is free.

Try the search in the following:

https://www.analog.com/

https://www.st.com/

http://www.ti.com/

https://www.onsemi.com/

https://www.nxp.com

https://www.infineon.com/

https://toshiba.semicon-storage.com/ap-en/product/linear/power-supply/pfc-ic.html

others

PFC: Power Factor Controller

U. Dreher sir i searched about that but searching only "kw PFC" would not give 3-Phase PFC design. There are various ways to do that but i am not getting the proper way to start designing.

Cristian Leca yes, PFC means "(PFC) Power Factor Controller". I have designed the single phase PFC now i want to go for 3-Phase 10KW PFC.

There are dedicated Integrated Circuits for everything today. I am sure you can find a few ICs for driving 3 phase PFC.

I know nothing about PFC. I assume power semiconductor switch is necessary and maybe inductor. But you should start from the driver IC.

Another approach is to use a microcontroller instead of a dedicated IC. Some microcontrollers have dedicated hardware interface (PWM or SMPS). But you need software for this. It can be a solution for mass production. I do not recommend for one single prototype because the design (including SW) is more difficult.

Shubham Kore

Re: "... would not give 3-Phase PFC design..."

Basically, you can implement 3-Phase PFC as 3 parallel single-phase PFCs. This would have the advantage that your active elements are referring to the DC ground - not requiring any isolation for controller and gate drivers.

g..gling for "KW PFC" "3-phase" (quotes included!) brought up the following:

https://www.microsemi.com/document-portal/doc_view/14743-35-kw-active-rectifier-with-integrated-pm

It's funny - this document is does promote the VIENNA rectifier topology you mentioned.

While this paper in itself concentrates on the power modules, it might further help to start...

A practical approach in high power 3-phase applications is designing three single-phase modular converters interleaving as 3-phase.

Hello. I am not aware there is any comercial controller addressing Vienna rectifiers. The common approach would be using an FPGA or a DSP and build your own software. Take into account the topology is most likely registered or patented, if you have in mind comercial applications.