摘要
在无功"反送正计"计量方式下,对于运量小、列车对数少的单线电气化铁路应采用动态无功补偿装置。最大无功补偿容量的计算和FC滤波支路的优化设计是动态无功补偿方案设计的重点,牵引供电设计人员需计算三种馈线最大电流,由于短时最大工作电流能够体现供电臂内的列车运行状态、甚至列车数量的变化,故采用其作为最大无功补偿容量的计算条件。在此总结了牵引变电所FC滤波支路优化设计的设计原则,并给出了滤波支路设备容量的最佳分布算法,实践证明,在不改变总无功补偿容量的前提下,该算法能够使补偿滤波装置总容量最小,并满足一定滤波率技术指标。
Under the reactive power absolute measurement mode, the dynamic reactive compensator should be adopted in single-track electrification railway which has small freight volume and small number of trains. The calculation of the maximum reactive power compensation capacity and optimum design of FC filter circuit are key-points of scheme design. Traction supply designer should calculate three type of traction substation＇s feeder current. As the short-time maximum current can incarnate the change of train running status, even the number of the trains, it should be adopted to calculate the maximum reactive power compensation capacity. The design principle of FC filter circuit optimum design in traction substation is concluded, and the best disposition algorithm of filter circuit facility capacity is given in this paper. The successful application has demonstrated that the algorithm can minimized the total compensation capacity and satisfy certain technology index requirements of filtering rate without changing the total reactive power compensation capacity.
出处
《电力电容器与无功补偿》
2009年第3期28-32,共5页
Power Capacitor & Reactive Power Compensation
关键词
动态无功补偿
滤波装置
最大无功补偿容量
滤波支路
优化设计
Dynamic reactive compensation
Filter installation
Maximum reactive power compensation capacity
Filter circuit
Optimum design
