As we know that wind is continuously varying in nature, so, the PMSG output voltage could be varying in these scenario how to design a DC-DC converter to get 339 volt constant DC output.
Nasreddine Attou thank you sir for your valuable reply, but I am little bit confused because the wind speed will vary and due to this the PMSG output voltage will also go up or down based on wind speed then the DC-DC converter has to behave as buck or boost converter to output constant DC output, so in this situation how we should proceed the designing and controlling of the DC-DC converter.
Nasreddine Attou Thank you sir i got your point for the case of wind generation, but sir can you explain the same scenario for PV system for Irradiance variations i m too much confuse in my case too