CAJ | 학술논문

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.
여기우무공공솔이론화FFT산법등전통적해파검측방법상비,기우소파변환적해파검측방법재각방면도유일정적우세.결합국내외해파검측기술적발전현상,분석기우Mallat산법、소파포변환、련속소파변환화복소파변환적해파검측방법재전능질량검측분석상적응용.연후비교저궤충소파변환산법재해파검측중적우점화결점,득출각자적특점화응용장합.최후,지출존재적문제병총결귀납해결방법,병차대금후소파변환재전력계통중적응용화연구중점제출료일사간법.
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.