The Application of Complex Wavelet Transform in Voltage Fluctuations Detection

摘要：

It is difficult to obtain voltage fluctuation signal for determining flicker by orthogonal wavelets transform (OWT). In this paper, the compactly supported dyadic orthogonal linear phase complex wavelet is constructed using the compactly supported dyadic orthogonal real-valued wavelet in terms of lifting scheme. A pair of quadrature components with the same amplitude and the same frequency can be used to realize the demodulation of voltage fluctuation signal in this method. Simulation results show the method proposed can get better results than OWT without synchronous sample for power grid frequency, has the characteristic of shift-invariant. Result of voltage fluctuation detection is independent of initial time recording signal.

关键词： voltage fluctuations complex wavelet transform shift-invariant

作者: Zhang Rui Liu Nan Ma Hui-jun

作者单位: School of Automation,Harbin University of Science and Technology,Harbin China

会议类型: 国际会议

会议名称: The 6th International Forum on Strategic Technology(IFOST 2011)(第六届国际战略技术论坛)

会议地点: 哈尔滨

会议语种:英文

页码: 963-966

在线出版日期: 2011-08-22（万方平台首次上网日期，不代表论文的发表时间）