摘要
分析了电力变压器局部放电信号检测现场的各种干扰,设计了用于计算机模拟并仿真现场干扰的局部放电检测信号.在对小波及小波包算法介绍的基础上,将小波包分解与重构算法用于强载波及无线电干扰下的变压器局部放电信号检测问题,并对模拟的局部放电信号进行了小波包分解与重构的计算机模拟.模拟结果表明,小波包分解与重构算法可以从强载波及无线电干扰中检测出局部放电信号并且具有良好的性能.
This paper presents a decomposition and reconstruction algorithm based on wavelet packet theory.Disturbance partial discharge signal in HV transformer was designed for computer simulating.The extraction of the partial discharge signal in HV transformer is studied.Computer simulation results show the partial discharge can be extracted from strong carried disturbance and RF disturbance by the algorithm.
出处
《郑州工业大学学报》
1999年第2期8-11,共4页
Journal of Zhengzhou University of Technology
基金
河南省科学自然基金