电力系统及其自动化学报2018，Vol.30Issue(6)：45-52,8.DOI:10.3969/j.issn.1003-8930.2018.06.007
孤立运行的低压微电网改进下垂控制策略
Improved Droop Control Strategy for Islanded Low-voltage Microgrid
摘要
Abstract
In light of the disadvantages of the conventional droop control strategy for an islanded low-voltage microgrid, an improved droop control strategy is proposed from the aspects of structure and parameter optimizations. From the first aspect,considering the non-negligible resistance and inductance of lines in the low-voltage microgrid,the line imped?ance angle is introduced to droop control as a variable,and a differential control link is added to increase the number of freedoms in the controller design. From the second aspect,the parameters of the control structure are optimized by parti?cle swarm optimization(PSO)algorithm to provide enough system damping and thus reduce system oscillations during the transient process. Finally,simulation models are established in time domain using Matlab/Simulink,which verifies the effectiveness and correctness of the proposed control strategy.关键词
下垂控制/微电网/粒子群优化/控制参数/分布式发电Key words
droop control/microgrid/particle swarm optimization(PSO)/control parameter/distributed generation分类
信息技术与安全科学引用本文复制引用
闫卫国,蒋菱,陈晓祺,贾宏杰,肖迁,赵帅..孤立运行的低压微电网改进下垂控制策略[J].电力系统及其自动化学报,2018,30(6):45-52,8.基金项目
国家高技术研究发展(863)计划资助项目(2015AA050403) （863）
国家自然科学基金资助项目(51377117) （51377117）
