【作者】 王彦文； 左忠祥； 徐康勇； 杨凡信；

【Author】 WANG Yan-wen,ZUO Zhong-xiang~1,XU Kang-yong~1,YANG Fan-xin~2 (1.China University of Mining and Technology(Beijing),Beijing 100083,China; 2.Diqing Power Supply Bureau,Yunnan Power Grid Corporation,Diqing 674400,China)

【机构】 中国矿业大学(北京)； 云南电网公司迪庆供电局；

【摘要】 在分析五次谐波优缺点的基础上,提出了克服系统故障前含有五次谐波分量的干扰,防止造成选线的不准确。采用混沌理论对故障信号进行建模,为有效地提取微弱的五次谐波,提出一种基于Duffing振子的混沌弱信号检测方法和选线方法,从算例方法验证了本方法的可行性。更多还原

【Abstract】 Based on the analyzing of the advantages and disadvantage on fifth harmonic wave,raised the five harmonic wave components interference before overcome system failure.In order to avoid the inaccuracy of line selection,using chaos theory to model the fault signal,and raise one chaos weak signal detecting and line selection method based on Duffing vibrator to effectively pick up weak fifth harmonic wave,verified the feasibility of this method.更多还原