电源学报Issue(4)：38-45,8.DOI:10.13234/j.issn.2095-2805.2015.4.38
基于虚拟阻抗的三相逆变器并联系统研究
Research on Virtual Impedance Control of Parallel Three-phase Inverter System
摘要
Abstract
PQ droop control is generally used in the parallel system of three-phase inverter. The conventional PQ droop control is based on the ideal model, and the parameters of each inverter module are exactly the same. But in the normal system, the circuit parameters of the inverter modules are often not completely the same, and the circulating current between modules appears. In order to solve the problem, the concept of virtual impedance is applied to the control of three-phase inverter parallel system in this paper. The research shows that the virtual impedance can effectively solve the influence caused by the difference between components and circuit parameters of each module, and reduce the circulating current to improve the performance of current sharing. The simulation and experiments verify the method.关键词
下垂控制/环流/逆变器并联/虚拟阻抗Key words
droop control/circulating current/parallel inverter/virtual impedance分类
信息技术与安全科学引用本文复制引用
武宏彦,郭倩,白志红,马皓..基于虚拟阻抗的三相逆变器并联系统研究[J].电源学报,2015,(4):38-45,8.基金项目
国家自然科学基金项目（51177149）Project Supported by the National Natural Science Foundation of China （）
