Title :
Wireless circulating current control for parallel connected photovoltaic inverters
Author :
Purhonen, Mikko ; Musikka, Tatu ; Korhonen, Jari ; Silventoinen, Pertti ; Viitanen, Timo
Author_Institution :
Electr. Eng., Lappeenranta Univ. of Technol., Lappeenranta, Finland
Abstract :
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.
Keywords :
electric current control; electric current measurement; invertors; photovoltaic power systems; power system control; common mode current measurement; modulator switching frequency; parallel connected photovoltaic inverters; wireless circulating current control; Inverters; Phase modulation; Photovoltaic systems; Switches; Switching frequency; circulating current control; parallel connected inverters; photovoltaic inverters;
Conference_Titel :
AFRICON, 2013
Conference_Location :
Pointe-Aux-Piments
Print_ISBN :
978-1-4673-5940-5
DOI :
10.1109/AFRCON.2013.6757868
