Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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容性设备介损测量算法的对比与改进

来源:电工电气发布时间:2016-03-14 15:14 浏览次数:8

容性设备介损测量算法的对比与改进 

袁飞 
东南大学 电气工程学院,江苏 南京 210096 
 

摘 要:为测量容性设备的介质损耗因数(tanδ),对比分析了过零比较法、谐波分析法与相对比较法,并在此基础上提出了改进的相对比较法,该方法引入只含有基波的中间参考量,通过中间量计算相位差,将谐波分量放大并引入直流分量进行模拟实验。实验结果表明,该方法消除了谐波大小对测量结果的影响,测量精度高,抗干扰能力强。
关键词:容性设备;介质损耗因数;过零比较法;谐波分析法;相对比较法;改进的相关比较法
中图分类号:TM934.32 文献标识码:A 文章编号:1007-3175(2015)04-0010-05


Contrast and Improvement of Capacitive Equipment Dielectric Loss Measurement Algorithms 

YUAN Fei 
School of Electrical Engineering, Southeast University, Nanjing 210096, China 
 

Abstract: In order to measure the dielectric loss factor of capacitive equipment (tanδ), this paper analyzed the over-zero comparison method, harmonic analysis method and relative comparison method respectively, and on the basis of this, this paper put forward the modified relative comparison method, which introduced the intermediate reference quantity with fundamental wave, calculating the phase difference via intermediate quantity. The harmonic component was amplified and the DC component was introduced to simulate the test. The result shows that this method eliminates the influence of harmonic quantity on the measurement results with measurement of high precision and strong anti-interference ability.
Key words: capacitive equipment; dielectric loss factor; over-zero comparison method; harmonic analysis method; relative comparison method; modified relative comparison method


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