An improved wavelet approach for finding steady-state waveforms of power electronics circuits using discrete convolution
An improved wavelet approach for finding steady-state waveforms of power electronics circuits using discrete convolution
复制标题
一种改进的小波方法，用于使用离散卷积查找电力电子电路的稳态波形
DOI：
10.1109/tcsii.2005.852167
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
C. Tse
中科院分区：
文献类型：
--
作者：
K. C. Tam;Siu‐Chung Wong;C. Tse
由于开关作用和寄生的存在，电力电子电路产生的波形往往包含嵌入在缓慢变化的段中的高频环。这样的特征与小波的局部化性质是一致的，这是以前被用来快速逼近稳态波形的。利用切比雪夫多项式的正交性，提出了一种改进的、更稳健的小波系数计算方法。仿真结果验证了新算法的有效性。
Due to the switching action and the presence of parasitics, waveforms arising from power electronics circuits often contain high-frequency ringings embedded in slowly varying segments. Such a feature is consistent with the localization property of wavelets which has previously been exploited for fast approximations of steady-state waveforms. This paper proposes an improved and more robust approach for calculating the wavelet coefficients, exploiting the orthogonal property of the Chebyshev polynomials. Simulation results demonstrate the effectiveness of the new algorithm.