Wireless circulating current control for parallel connected photovoltaic inverters
2013
This paper presents a method for minimizing the circulating current between parallel connected photovoltaic inverters. The method is based on a common mode current measurement and on changing the modulator switching frequency. Prior methods for limiting circulating current in parallel connected inverters have not been efficient in long distances. The control method works wirelessly and is not limited by the distance between the inverters.
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