电力电容器内部温度控制对电力系统稳定性的影响  

The influence of internal temperature control of power capacitors on power system stability

作　　者：江兴考 JIANG Xingkao(Shanghai Sieyuan Power Capacitor Co.,Ltd.,Shanghai 201100,P.R.China)

机构地区：[1]上海思源电力电容器有限公司,上海201100

出　　处：《灯与照明》2025年第1期146-149,共4页Light & Lighting

摘　　要：电力电容器是电力系统无功补偿的关键设备,其内部温度控制对系统稳定性具有重要影响。研究表明,电容器内部浸渍剂苄基甲苯具有优良的热稳定性,但温度变化会影响其介电性能。通过对电容器元件结构、材料特性及温度变化规律的分析,发现控制电容器内部温度可有效降低损耗角正切值,提高电容量的稳定性。实验数据显示,合理的温度控制可使感性电流得到有效补偿,功率因数显著提升,进而增强电力系统运行稳定性,对保障电网安全运行具有重要的实践意义。Power capacitors are key equipment for reactive power compensation in power systems,and their internal temperature control has a significant impact on system stability.Research has shown that the impregnating agent benzyl toluene inside capacitors has excellent thermal stability,but temperature changes can affect their dielectric properties.Through the analysis of the structure,material characteristics,and temperature variation laws of capacitor components,it was found that controlling the internal temperature of capacitors can effectively reduce the loss tangent value and improve the stability of capacitance.Experimental data shows that reasonable temperature control can effectively compensate for inductive current,significantly improve power factor,and enhance the stability of power system operation,which has important practical significance for ensuring the safe operation of the power grid.

关 键 词：电力电容器 温度控制 系统稳定性 苄基甲苯 无功补偿 

分 类 号：TM712[电气工程—电力系统及自动化] TM53