摘要
与基于无功功率理论和FFT算法等传统的谐波检测方法相比,基于小波变换的谐波检测方法在各方面都有一定的优势。结合国内外谐波检测技术的发展现状,分析基于Mallat算法、小波包变换、连续小波变换和复小波变换的谐波检测方法在电能质量检测分析上的应用。然后比较这几种小波变换算法在谐波检测中的优点和缺点,得出各自的特点和应用场合。最后,指出存在的问题并总结归纳解决方法,并且对今后小波变换在电力系统中的应用和研究重点提出了一些看法。
Compared with traditional harmonic detection methods, snch as the instantaneous reactive power theory and FFT, the harmonic detection method based on wavelet transform hjias many advantages. According to the current harmonic extraction technology, the paper analyses the application of the harmonic detection methods based on Mallat arithmetic, wavelet packet, continuous wavelet transform and complex wavelet transform in the power quality detection. Then their advantages and disadvantages are analyzed and compared to get the characteristics and apply occasions. In the end, the questions existing in these methods are pointed out and sloved, and some opinions about the developing trend of wavelet transform in power system are put forward.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2010年第1期80-85,共6页
Proceedings of the CSU-EPSA
基金
珠海市科技攻关项目(PC20071082
PC20072005)
关键词
谐波检测
小波变换
电能质量
电力系统
harmonic detection
wavelet transform
power quality
power system
