摘要
设计了一种基于串联谐振原理的高压电抗器局部放电测量基本试验电路。首先用有限元分析软件计算出给定频率段（30-300 Hz）的高压电抗器阻抗的特性,通过工频条件下的试验值与计算值做比较,证明该计算方法的正确性,其结果为谐振电容和补偿电容参数值的选择提供依据;然后,建立了试验电路的灵敏度分析模型,利用伴随网络法进行了灵敏度的计算,以灵敏度为依据对高压滤波器的参数进行了设计;最后,运用给定的方法给出了实例验证,它为高压电抗器做局部放电试验的电路设计以及参数确定提供了重要依据。
On-site testing PD of high-voltage reactor is necessary to impose its rated running voltage.Owing to ordinary high-frequency test equipment size,weight,its transportation,installation and adjustment is very difficult,and using the series resonance test on-site device can be used as an effective solution.So in this paper,we make an anti-PD-circuit test based on the principle of resonance in series.First,we use finite element analysis software to calculate frequency（30-300Hz） variable characteristics of the high-voltage reactor impedance.Through the frequency of the test under the condition of value compared with the calculated value,we proved the method is correct.According to the results we can determine the appropriate parameters of resonant capacitor and compensation capacitor;then we establish the sensitivity analysis model,and use the network method to calculate the sensitivity to optimize the parameters of high-pressure filter and detection impedance.Finally,We get the examples of verification using the method in the text,which provides an important basis for the circuit design and parameter determination of high-voltage reactor＇s partial discharge test.
出处
《电力科学与工程》
2010年第6期24-27,共4页
Electric Power Science and Engineering
关键词
高压电抗器
串联谐振
局部放电
灵敏度分析
high-voltage reactor
frequency-dependent
PD
sensitivity analysis
