Grid Integration Of Renewables

Most of the renewable energy sources require power electronic converters for their integration to the power grid. For example wind generators produce variable frequency low voltage AC. So, we need a power converter to convert the variable frequency to fixed line frequency (50/60Hz) AC. The power converter also ensures extraction of maximum amount of available power from the renewable source. The challenges and requirements are different for different renewable sources like, wind, solar etc. Even for same source like solar the problem of grid integration is different for low power rooftop PV to utility scale solar parks. One of the focus of our work is to find better solutions that improve overall efficiency and reduce cost. For example we are working on solutions that can replace the current state of the art central inverter plus line frequency transformer solution for grid integration of utility scale solar, as shown below.