Phase-Locked Control Method for Three-Phase Combined Inverters
Wang Jianhua1, Liu Lei2, Zhang Fanghua1, Gong Chunying1, Ma Yiling3
1. Nanjing University of Aeronautics and Astronautics Nanjing 210016 China 2. Nari-Relays Electric Co. Ltd Nanjing 211102 China 3. Emerson Network Power(Nanjing) Co. Ltd Nanjing 210013 China
Abstract：A control method for three-phase combined inverter is proposed based on phase-locked loop (PLL) technology. Phase synchronization information is easy to be disturbed in process of signal transmission for conventional combined inverters, which is solved by demodulation of one certain output voltage. Experimental results of 3.6kVA three-phase combined inverter prototypes are presented to verify the validity and feasibility of this method. The proposed method is simple and easy to implement. Good symmetrical output voltage could be obtained even with different inverter models combined together.
王建华, 刘磊, 张方华, 龚春英, 马义林. 组合式三相逆变器锁相控制策略[J]. 电工技术学报, 2010, 25(8): 79-84.
Wang Jianhua, Liu Lei, Zhang Fanghua, Gong Chunying, Ma Yiling. Phase-Locked Control Method for Three-Phase Combined Inverters. Transactions of China Electrotechnical Society, 2010, 25(8): 79-84.
2010, Vol. 25 
