中国电机工程学报2016，Vol.36Issue(14)：3878-3887,10.DOI:10.13334/j.0258-8013.pcsee.151483
角形级联SVG不平衡补偿的控制策略
Control Method for Delta-connected Cascaded SVG Under Unbalanced Condition
摘要
Abstract
Delta-connected cascaded static var generator (SVG) is an effective solution to compensate reactive power and negative sequence currents. This paper focused on the control strategy for SVG under unbalanced voltage condition. The asymmetric active powers of three-phase clusters produced by line voltages and phase currents were analyzed. With the method of phasor decomposition, the expression of zero-sequence current was derived under the constraints that the line voltage phasors should be perpendicular to the phase current phasors. On the basis of this, a control strategy for delta-connected SVG was proposed, which could improve the dynamic performance and eliminate the impact of negative- sequence voltage on the compensation performance. Finally, simulation and experiment results have been given to verify the feasibility and correctness of the proposed control strategy.关键词
角形级联 SVG/电压不对称/零序电流/相量分析/不平衡负载补偿Key words
delta-connected cascaded static var generator (SVG)/asymmetrical voltage/zero-sequence current/phasor analysis/unbalanced load compensation分类
信息技术与安全科学引用本文复制引用
何志兴,罗安,马伏军,熊桥坡,徐千鸣,岳雨霏..角形级联SVG不平衡补偿的控制策略[J].中国电机工程学报,2016,36(14):3878-3887,10.基金项目
国际合作项目(2013DFB60250)；湖南省研究生科研创新项目(CX2014B130)。 Project Supported by the International Corporation Project (2013DFB60250) （2013DFB60250）
Hunan Provincial Innovation Foundation for Postgraduate (CX2014B130) （CX2014B130）
