电力系统保护与控制Issue(6)：123-128,6.
基于分布式控制的不同容量逆变器并联技术研究
Study on distribution controlled inverter parallel system with different power ratings
摘要
Abstract
With regard to the different capacity power source inverters in parallel, a dual-outer-loop distributed control strategy is proposed. It can achieve the goal that the required modules in parallel system depend on the value of load current and all the parallel modules share load current in proportion to their own capacities, in addition, restrain circulating current and realize the redundancy in parallel. In this strategy, each inverter has three loops: an inner-loop current controller is used to improve the system dynamic response, an outer-loop voltage controller is to govern system stability, and an outer-loop current controller can achieve a weighted output current by following the output signal of power distribution unit. In order to realize load current accurately distribution and redundancy control of system, power distribution unit provides the given current signal of current outer-loop and switch signal of all modules according to the value of load current and voltage source rated current. Theoretical analysis and simulation verify the effectiveness of the strategy.关键词
逆变器并联/容量/冗余/环流/双外环Key words
inverter parallelism/capacity/redundancy/circulating current/dual-outer-loop分类
信息技术与安全科学引用本文复制引用
李依璘,王明渝,梁慧慧,王少杨..基于分布式控制的不同容量逆变器并联技术研究[J].电力系统保护与控制,2014,(6):123-128,6.基金项目
输配电装备及系统安全与新技术国家重点实验室自主研究项目(2007DA10512711205) （2007DA10512711205）
