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| 基于半正交小波包的电机故障信号处理方法 | |
| 引用本文： | 胡国胜,郭晓玉,任震,黄雯莹. 基于半正交小波包的电机故障信号处理方法[J]. 电力系统及其自动化学报, 2002, 14(3): 1-4,12 |
| 作者姓名： | 胡国胜 郭晓玉 任震 黄雯莹 |
| 作者单位： | 1. 华南理工大学电力学院,广州,510640;广东省科技干部学院,广州,510640 2. 河南省中医学院,郑州,450000 3. 华南理工大学电力学院,广州,510640 |
| 基金项目： | 国家自然科学基金项目 ( 5 0 0 770 0 8)，广东省自然科学基金项目 ( 0 80 6 0 8) |
| 摘 要： | B－样条小波是对称的半正交小波，基于它的小波包称为半正交小波包，它的算法简洁，准确，与Daubechies小波迭代算法不同，B－样条小波是对称的或反对称的小波，基于它的滤波器具有线性相位或广义线性相位，因而可避免信号的相位失真，实验结果表明半正交小波包对故障信号的分解，压缩，重构比Daubechies小波包效果明显，另外对故障信号的小波包分解的不同频带的特征值与正常信号的特征值进行比较，可以对故障信号进行谐波检测和定位。 |
| 关 键 词： | 半正交小波包 电机 故障 信号处理 |
SEMI-ORTHOGONAL WAVELET PACKET-BASED PROCESSING METHOD OF FAULT SIGNAL PROCESSING OF ELECTRIC POWER SYSTEM |
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| Hu Guosheng , Guo Xiaoyu Ren Zhen Huang Wenying. SEMI-ORTHOGONAL WAVELET PACKET-BASED PROCESSING METHOD OF FAULT SIGNAL PROCESSING OF ELECTRIC POWER SYSTEM[J]. Proceedings of the CSU-EPSA, 2002, 14(3): 1-4,12 | |
| Authors: | Hu Guosheng Guo Xiaoyu Ren Zhen Huang Wenying |
| Affiliation: | Hu Guosheng *,** Guo Xiaoyu *** Ren Zhen * Huang Wenying * |
| Abstract: | B-spline wavelet is a symmetrical and semi-orthogonal wavelet. B-spline wavelet based wavelet packet be called semi-orthogonal wavelet packet, its algorithm is concise and accurate and different from Daubechies wavelet using iterating. B-spline wavelet is symmetric and anti-symmetric, its filter has characteristics of linear phase or generalized linear phase, so it can prevent distortion, Emulation shows that semi-orthogonal wavelet packet is more effective than Daubechies wavelet packet to decompose and reconstruct fault signal. Comparing the characteristics of different frequency band to fault signal and normal signal,fault signal harmonics can be detected accurately. |
| Keywords: | B-spline wavelet semi-orthogonal wavelet packet Daubechies wavelet packet fault detection decomposition and reconstruction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |