大容量电力电容器过电压周期试验装置的研究

Study on Overvoltage Cycle Test Device for Large Capacity Power Capacitor

本文通过对高电压、大容量电力电容器过电压周期试验的标准要求分析,结合主电路方案分析选择和系统设计,根据试验参数选取适宜的变压器、电抗器、变频电源等设备,利用电力电子技术、高电压试验技术等对电力电容器过电压试验装置进行了设计。该装置具备电感值及试验电压可调,试验时可监测与显示电压和电流,同时具有过电压、过电流保护的功能,并可进行试验数据的储存和管理。通过试验验证,装置可满足标准的试验要求,为电力电容器参数的设计确定及优化提供可靠的试验支持。

In this paper,the over voltage test device for power capacitor is designed throughout analysis of standard requirement on over-voltage test of high voltage and large capacity power capacitor,with combination of the analysis and selection of main circuit scheme and system design,selection of appropriate equipments such as transformer,converter and variable frequency power supply equipment in accordance with test parameters etc and by the use of power electronic technology and high voltage test technique.The device has adjustable inductance value and the test voltage,can monitor and display the voltage and current in the test and,at the same time,has the function of over-voltage and over-current protection as well as perform storage and amangement of test data.It is verified by the test that the device can meet test requirement specified in the standard and can provide reliable test support for the design,determination and optimization of parameters of power capacitor.