基于改进最大位移电压法测量谐振接地系统电容电流  

Capacitive Current Measurement of Resonance Grounding System Based on the Improved Maximum Displacement Voltage Method

作　　者：马亚琦 蔡杰 林俊超 班斓 周威 胡林洁 李景禄[1] 

机构地区：[1]长沙理工大学电气与信息工程学院,湖南长沙410114

出　　处：《电力电容器与无功补偿》2017年第5期126-129,135,共5页Power Capacitor & Reactive Power Compensation

摘　　要：本文针对在应用最大位移电压法时,测量谐振接地系统的电容电流与实际值存在较大误差,发现该方法存在不足,提出了新的改进方法。通过对原始的谐振测量法原理的分析,阐述了该方法在实际应用中的问题。通过实际分析,本文改进了最大位移电压法测量电容电流表达式,并将该表达式集成到电容电流测试装置中,现场试验结果表明改进后的电容电流测量方法具有更高的精度。In this paper, in view of big error between the capacitive current of the measured resonance grounding system and the actual one when the maximum displacement voltage method is applied, the shortcoming of the method is found and new improved method is proposed. The issue on the practical application of the method is described through the analysis of the original resonance measurement method. The expression form on the measurement of capacitive current by the maximum displacement voltage method is improved through actual analysis and the expression form is integrated into the capacitive current test device. It is shown by the site test result that the modified capacitive current measurement method has much higher accuracy.

关 键 词：谐振接地系统 最大位移电压法 模拟试验 

分 类 号：TM862[电气工程—高电压与绝缘技术]