摘要
介绍了直流输电系统中谐波的来源及危害,分析了葛—南直流系统南桥站直流侧和交流侧的谐波特点及存在的问题,发现交流侧13次谐波滤波容量不足,计划将DA32电容器组改造为HP11.8滤波器组。文章还介绍了南桥站无功控制方式,重点分析了Umax和Qmax无功控制方式。试验验证了交流滤波器投切顺序,分析了南桥站直流系统启动必须先投入F1组交流滤波器的原因。
The origin and the harm of harmonics in the HVDC system are introduced. The harmonic features and existing problems on DC and AC side of NQ station in Gezhouba-Nanqiao HVDC system is analyzed, finding that the order 13 harmonic filters capacities are insufficient and planning to modify DA32 capacitor bank into HPll. 8 filter. The reactive power control method of NQ station is also introduced in this paper, especially Umax and Qmax control algorithms. AC filter switching sequence is verified, and the reason about F1 group filters must be firstly switched during the start of HVDC system in NQ station is analyzed.
出处
《电力电容器与无功补偿》
2010年第5期23-28,共6页
Power Capacitor & Reactive Power Compensation
