Abstract：In this paper various possible control strategies are analyzed for four configurations of series/parallel inverter system, which can be divided into two categories, i.e., input-parallel connection and input-series connection according to the similarity of control strategy and input connection. The output control strategy is preferred for the former one and the compound control strategy must be considered for the latter one. The IPOP system and ISOS system, as the representations of two categories respectively, are investigated about their separate detailed control methods, in which the load current feed-forward control is introduced for different purposes. The prototypes are built to verify the theoretical analysis.
方天治, 阮新波. 两类串并联逆变器组合系统的控制策略[J]. 电工技术学报, 2010, 25(8): 72-78.
Fang Tianzhi, Ruan Xinbo. Control Strategy for Two Categories of Series/Parallel Connection Inverters System. Transactions of China Electrotechnical Society, 2010, 25(8): 72-78.
[1] 王建冈, 阮新波, 吴伟, 等. 倒装芯片集成电力电子模块[J]. 中国电机工程学报, 2005, 25(17): 32-36. [2] Ayyanar R, Giri R, Mohan N. Active input-voltage and load-current sharing in input-series and output- parallel connected modular DC-DC converters using dynamic input-voltage reference scheme[J]. IEEE Transactions on Power Electronics, 2004, 19 (6): 1462- 1473. [3] Chen J F, Chu C L. Combination voltage-controlled and current-controlled PWM inverter for UPS parallel operation[J]. IEEE Transactions on Power Electronics, 1995, 10(5): 547-558. [4] Chiang S J, Chang J M. Parallel control of the UPS inverters with frequency-dependent droop scheme[C]. IEEE PESC, Vancouver, Canada, 2001: 957-961. [5] Guerrero J M, De Vicuna L G, Matas J, et al. Steady-state invariant frequency and amplitude droop control using adaptive output impedance for parallel- connected UPS inverters[C]. IEEE APEC, Austin, Texas, USA, 2005: 560-566. [6] Tan Jingtao, Lin Hua, Zhang Jun, et al. A novel load sharing control technique for paralleled inverters[C]. IEEE PESC, Acapulco, Mexico, 2003: 1432-1437. [7] Xing Y, Huang L, Yan Y. Redundant parallel control for current regulated inverters with instantaneous current sharing[C]. IEEE PESC, Acapulco, Mexico, 2003: 1438-1442. [8] 邢岩, 严仰光. 电流型调节逆变器的冗余并联控制方法[J]. 中国电机工程学报, 2004, 24(11): 199-202. [9] Zhuang K, Ruan X. Control strategy to achieve input voltage sharing and output current sharing for input-series-output-parallel inverter[C]. IEEE PESC, Rhodes, Greece, 2008: 3655-3658. [10] 陈敏. 9kVA组合式三相逆变器的研制[D]. 南京: 南京航空航天大学, 2002. [11] 陈东华. 瞬时值控制逆变器技术研究[D]. 南京: 南京航空航天大学, 2003.
2010, Vol. 25 
