燕山大学学报2017，Vol.41Issue(2)：133-141,9.DOI:10.3969/j.issn.1007-791X.2017.02.006
基于鲁棒电流下垂控制的不同容量逆变器并联控制研究
Power control of paralleled inverters with different power ratings based on robust current droop control
摘要
Abstract
When the low voltage micro-grid operate in islanded mode,the characteristics and the size of the equivalent system impedance affect greatly on the load sharing of multi-paralleled inverters with different capacity accurately according to its own capacity.The conditions needed are analyzed in detail in this paper,that multi-paralleled inverters with different capacity share the load accurately when the system impedance is resistance,and proposed a robust current control strategy,eliminating the impact of system impedance on the active current precisely.As for the output impedance of the inverters,The double closed-loop controller are used in this paper,that the capacitor voltage outer loop with quasi proportional resonant regulator and the inductor current inner loop with proportional regulator.Introducing a virtual resistor make the equivalent output impedance of the inverters resistance and controlled.Simulation and experimental results verify the correctness and validity of the proposed control strategy.关键词
低压微电网/不同容量/逆变器并联/鲁棒电流下垂控制Key words
low voltage micro-grid/different capacity/paralleled inverters/robust current droop control分类
信息技术与安全科学引用本文复制引用
郭忠南,张纯江,李福林,张世超,阚志忠..基于鲁棒电流下垂控制的不同容量逆变器并联控制研究[J].燕山大学学报,2017,41(2):133-141,9.基金项目
国家自然科学基金资助项目(51607154) （51607154）
河北省自然科学基金资助项目(E2016203357) （E2016203357）
