摘要
根据负荷无功功率特性曲线,对牵引变电所现有的固定补偿模式进行了分析,讨论了不同的无功计量方式下固定补偿的容量配置问题,指出反送正计时固定补偿存在一个最佳容量配置点,此容量下的补偿效果决定了变电所是否需要进行改造。本文用数学的方法导出了确定最佳固定补偿容量的方法,研究了空载概率对固定补偿效果的影响,并以实测数据验证了分析结果的有效性和可行性,为变电所固定补偿容量的选择和现有补偿方案的改造提供了可靠依据。
In this paper, according to the reactive power curve of traction load, the present model of fixed compensation in traction substation is studied and capacity configurations in different measurements of reactive power are analyzed. It points out that the optimized capacity of fixed compensation exists under the measurement of positive calculation of negative reactive power, and the compensation efficiency under the optimized capacity determines the necessity of compensation modification for the substation. It also derives the method to confirm the optimized capacity and discusses the influence of unload probability to compensation efficiency. At last, the conclusion is testified by practical operation data measured on the spot. This is a practical reference for selection of capacity or modification of fixed compensation in substation.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2003年第2期34-38,共5页
Journal of the China Railway Society
关键词
牵引变电所
无功补偿
空载概率
traction substation
reactive compensation
unload probability
