适用于新型UPFC拓扑的电力系统潮流计算方法  

A Load Flow Calculation Method for Power Systems With Novel UPFC Topology

作　　者：杨健[1] 宋鹏程[1] 徐政[1] 

机构地区：[1]浙江大学电气工程学院,浙江省杭州市310027

出　　处：《电网技术》2017年第3期888-894,共7页Power System Technology

摘　　要：统一潮流控制器(unified power flow controller,UPFC)可以灵活控制和调节电力系统运行状态,具有广泛的应用前景。然而,现有含UPFC的电力系统潮流计算方法大多是针对UPFC串联侧和并联侧接于同一母线的结构,而UPFC并联侧与串联侧接于不同母线时的潮流计算方法还有待深入研究。推导了上述两种情况下UPFC对交流网络的节点注入功率及其偏导,并提出了可在已有潮流计算程序中实现的、适用于新型UPFC拓扑的电力系统潮流计算方法。最后,通过PSS/E算例验证了所提方法的正确性和在实际系统中的适用性。Widely applied unified power flow controllers （UPFCs） can flexibly regulate operation state of power system. However, most existing load flow calculation methods for power systems with UPFCs are developed based on conventional UPFC structure with series and shunt transformers connected to a common AC bus. For power systems with UPFC with series and shunt transformers connected to different AC buses, load flow calculation method requires further study. This paper deduces bus injection power and partial derivatives for both cases and proposes a novel load flow calculation method for power systems with UPFCs, which can be easily realized in existing load flow programs. Finally, correctness and feasibility of the method are validated with PSS/E study cases.

关 键 词：统一潮流控制器 新型拓扑 潮流计算 PSS/E 

分 类 号：TM744[电气工程—电力系统及自动化]