摘要
针对电力系统谐波的特点 ,分析了模拟电路实现的谐波抑制与检测方法 ,基于傅里叶变换的检测方法 ,探讨了小波变换的优势 ,研究了电力系统谐波分析的小波变换方法 .计算和仿真结果表明 ,该方法克服了传统的快速傅里叶变换只有频域局部性而无时域局部性的缺点 ,能够实时跟踪随机性很强的谐波信号 。
Based on the characteristics of the harmonics in power systems, the restraining and detecting harmonics with the analogue circuit is analyzed, the harmonics detecting with Fourier Transform is analyzed, the advantages of the wavelet transform is discussed, the method of wavelet transform is investigated in electric power system. The result of calculation and simulation show that the method overcomes the shortcoming of the fast Fourier transform, and it can run after the harmonics signal, so it can accurately detect the harmonics.
出处
《大庆石油学院学报》
CAS
北大核心
2002年第1期45-47,共3页
Journal of Daqing Petroleum Institute
基金
中国石油天然气集团公司中青年创新基金项目 (99科字 3 9号 )
