Hello,
I have a 1500 W load and 500W PV panel. I use grid to supply my load by the aid of 400V output Partial switcing converter. I attaced my desired project scheme.
I want to use my PV panels and not to pay for extra energy i have to design a grid cooperated system.
As is seen in the scheme, i need a MPPT which has a 400V output. I don't know how to design a boost type MPPT and how to connect it to LOAD input after the designing a MPPT.
Assuming that; i designed a MPPT with 400V output , what must i do after. Directly connection it to load? If a regulation problem occurs at output of PFC or MPPT what will do? Is there any dc to dc connection methode?
Could you please help me in killing my troubles.
Thanks.
Using voltage control with a higher setpoint for the solar inverter, as suggested by Dmitron, basically solves the problem. It makes the solar inverter operate at maximum power, unless the load power request drops and the grid inverter supply the rest. Diode decoupling would be only necessary, if the inverters down tolerate supply from the output.