A New Scale-Frequency Method for Inter-Harmonic Detection Based on Continuous Wavelet Transform
Inter-harmonic detection has been a major problem to improve power quality due to the invalid of traditional Fourier transform. Continuous wavelet transform is used in this paper. Based on analyzing the relationship between scale and frequency and by solving the wavelet transform coefficients extreme value, the characteristic scale can be determined and then the frequency corresponding to the characteristic scale can be solved, so interharmonics can be checked out. For the models with harmonics lower than SOHz or containing a variety of inter-harmonics, MATLAB simulation experiments results show that the method proposed in this paper is reliable and accurate.
wavelet transform inter-harmonic the characteristic scale extreme point
Gong Jing
Beijing University of Civil Engineering and Architecture Beijing, China
国际会议
长春
英文
136-139
2010-08-24（万方平台首次上网日期，不代表论文的发表时间）