电力系统保护与控制Issue(14)：72-78,7.
无功和三相负荷不平衡的序分量法补偿控制
Compensation control of reactive power and three-phase unbalance load based on the method of sequence component
摘要
Abstract
A static synchronous compensator (STATCOM) is used into distribution grid for compensating reactive power and three- phase unbalance load for the distribution grid. According to analyzing the positive sequence equivalent circuit and negative sequence equivalent circuit under the three-phase unbalance load of distribution grid, using the symmetrical component method and superposition principle, a new cascade loop control strategy of positive sequence current and negative sequence current is proposed. Usingδ-θ control, the positive sequence loop compensates reactive power of distribution grid and maintains stability of STATCOM DC voltage. Usingφ-θ control in the negative sequence loop can make STATCOM compensate negative-sequence current caused by three-phase load unbalance and keep distribution grid side three-phase load balanced. Simulation and experiment results are presented to verify the validity of the proposed control strategy. This work is supported by National Natural Science Foundation of China (No. 51377016).关键词
电力系统/无功补偿/静止同步补偿器/负荷不平衡/对称分量法/叠加原理Key words
power system/reactive power compensation/static synchronous compensator/unbalance load/symmetrical component method/principle of superposition分类
信息技术与安全科学引用本文复制引用
辛业春,李国庆,王朝斌..无功和三相负荷不平衡的序分量法补偿控制[J].电力系统保护与控制,2014,(14):72-78,7.基金项目
国家自然科学基金项目(51377016) （51377016）
