【摘要】 为有效分析和解决有源阻抗变换,对使用小波变换检测谐波与间谐波的方法进行了研究,并在此基础上探讨了利用小波分析、研究时频阻抗的控制特性和频率特性的基本原理,提出了利用小波变换来分离谐波与间谐波的算法,并兼顾时域和频域的分辨率。仿真结果表明,该方法不仅具有高分辨率特性,能较好地找出APF的时频阻抗特性,可以较好地分析谐波,以使其跟踪特性最优,为有源电力滤波器谐波抑制提供了可行的解决途径。更多还原

【Abstract】 In order to effectively analyze and resolve Active impedance transform,wavelet transform on the use of harmonic and inter-harmonic detection methods are studied,and on this basis to explore the use of wavelet analysis to study the control of time-frequency characteristics of impedance and frequency characteristics of the basic principles of analysis of the use of wavelet transform to separate harmonic inter-harmonic wave with the algorithm,taking into account time and frequency domain resolution.The simulation results show that the method not only has the characteristics of high-resolution,but also can identify the APF time-frequency impedance characteristics,it is very useful for harmonic analysis,in the active power filter harmonic inhibitory aspects,and it has providing a feasible solution.更多还原