电工技术学报2016，Vol.31Issue(11)：1-12,12.
一种低延时鲁棒功率下垂控制方法
A Low-Delay Robust Droop Control Method
摘要
Abstract
On the basis of analyzing parallel multi-inverters’power distribution mechanism,this paper pro-poses a low-delay robust droop control method. Through redesigning the equivalent output impedance of the invert-ers as the pure resistance,it can decouple the active/reactive powers in the droop controller. Then,by construc-ting integrator 1/s in active power control,the Q-f/P-U'droop controller and U'recovery mechanism is proposed to improve the robust of the output power against the line impedance and equivalent output impedance. Thus the parallel multi-inverters can share the load power with regard to the ratio of their rated capacities accurately. In additional,considering the phase characteristic of equivalent output impedance is unchanged in this method,it does not need to design the equivalent output impedance again and reduces the design difficulty. Moreover,the system dynamic can be improved by the least-mean-square adaptive algorithm,which reduces the control hystere-sis of the power calculation. Finally,simulation and experimental results verify the validity of the proposed strategy.关键词
微电网/逆变器并联/环流/低延时功率控制/鲁棒下垂控制Key words
Microgrid/parallel inverters/circulating current/low-delay power control/robust droop con-troller分类
信息技术与安全科学引用本文复制引用
周乐明,罗安,陈燕东,李鸣慎,匡慧敏..一种低延时鲁棒功率下垂控制方法[J].电工技术学报,2016,31(11):1-12,12.基金项目
国家自然科学基金（51237003，51577056）和国家社会科学基金一般项目（14BJY143）资助。 （）
