电气传动2019，Vol.49Issue(10)：39-43,5.DOI:10.19457/j.1001-2095.dqcd18971
基于重复控制的光伏逆变器多目标协同策略
Multi-objective Coordinated Control Strategy of PV Inverter Based on Repetitive Control
摘要
Abstract
For purpose of improving the operation performance of photovoltaic inverters in unbalanced grid,a multi-objective cooperative control strategy based on repetitive controller in α-β frame was proposed. Firstly,the relationship between power and current in α-β frame under unbalanced grid conditions was introduced,and a power control strategy of photovoltaic inverters based on weighted distribution of grid-connected power instructions was adopted. Secondly,in order to ensure the effective implementation of the above strategy and simplify the control structure of the system,a compound controller with PI parallel repetitive was proposed to achieve accurate tracking control of the output current. Then,based on the linear superposition theorem,the equivalent controlled object model of the whole system was given to simplify the design of the stabilization compensation controller. Finally,the PSCAD simulation software was used to verify the correctness of the designed control strategy.关键词
光伏逆变器/不平衡电网/重复控制器/PSCAD仿真Key words
photovoltaic inverter/unbalanced grid/repetitive controller/power systems computer aided design simulation分类
信息技术与安全科学引用本文复制引用
刘凤雏,刘敏,钟华敏,李鹏..基于重复控制的光伏逆变器多目标协同策略[J].电气传动,2019,49(10):39-43,5.基金项目
广东电网有限责任公司科技项目(030200KK52160006) （030200KK52160006）
