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中文摘要：
间谐波是电力系统中一种特殊的谐波，它大量存在于电网中。间谐波对电网危害大，所以对它进行监测和分析具有重要的意义。针对基于傅里叶变换（DFT）的间谐波分析方法易受噪声干扰和对间谐波分辨率低的缺点，提出了一种基于小波变换的间谐波分析方法。仿真结果表明该方法不仅具有高分辨率特性，可以很好地分析间谐波，而且能实时跟踪间谐波。在电力系统间谐波分析方面具有经典DFT方法无可比拟的优越性。
英文摘要：
Inter-harmonics are special harmonics in power systems. They widely exist in power grids. Because the inter-harmonics bring severe harm to power grid, detecting and analyzing inter-harmonics is significant. The method to analyze inter-harmonics by using wavelet transform is proposed to overcome the shortcomings of DFT-based method, such as sensitive to noise and inaccurate performance in inter-harmonic analysis. The simulation results show that the proposed method provides super-resolution ability, with analyzing and tracking inter-harmonics in real time. It is superior to the classic DFT method, and can be used for inter-harmonic analysis in power system.
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