电网技术2012，Vol.36Issue(11)：205-210,6.
基于虚拟磁链的静止同步补偿器直接功率控制策略研究
Study on Direct Power Control of Static Synchronous Compensator Based on Virtual Flux Linkage
周杨 1江道灼 1王玉芬1
作者信息
- 1. 浙江大学电气工程学院,浙江省杭州市310027
- 折叠
摘要
Abstract
A direct power control strategy based on virtual flux linkage is proposed. Combining with space vector pulse modulation (SVPWM) the proposed control strategy can implement direct power control of three-phase static synchronous compensator (STATCOM). Based on current sampled values of voltage and current and computed values of active and reactive power, the voltage control value of STATCOM's output can be calculated to make the errors of active and reactive power becoming zero while the control process is completed. The influence of the degree of grid voltage unbalance on operation stability of STATCOM is researched in depth, thus the maximum degree of voltage unbalance that STATCOM can endure during its normal operation is determined. Having no need of transformation of rotational coordinates and PI control, the proposed control stratagem simplifies the design of controller. Both feasibility and availability of the proposed control strategy are verified by simulation results.关键词
静止同步补偿器/直接功率控制/电压空间矢量控制/电压不平衡度/虚拟磁链Key words
STATCOM/ direct power control/ SVPWM/ unbalance voltage of power system/ virtual flux linkage分类
信息技术与安全科学引用本文复制引用
周杨,江道灼,王玉芬..基于虚拟磁链的静止同步补偿器直接功率控制策略研究[J].电网技术,2012,36(11):205-210,6.
