舰船单相变频调速电机绕组的绝缘在线监测的研究

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英文篇名：On-line Insulation Detection of Ship Single Phase Frequency Speed Regulating Motor Windings 作者：梁敬哲 ; 张晓锋 英文作者：Liang Jingzhe;Zhang Xiaofeng;Electronic Engineering College, Naval University of Engineering; 关键词：变频调速电机 ; 舰船电力系统 ; 注入信号法 ; 电路仿真 ; 绝缘检测 英文关键词：VVVF motor;;ship power system;;injection signal method;;circuit simulation;;insulation detection 中文刊名：CDJI 英文刊名：Marine Electric & Electronic Engineering 机构：海军工程大学电气工程学院; 出版日期：2019-02-15 出版单位：船电技术 年：2019 期：v.39;No.280 语种：中文; 页：CDJI201902031 页数：5 CN：02 ISSN：42-1267/U 分类号：70-74

摘要

由于舰船环境相对复杂,传统的在线绝缘监测手段大多无法良好适用于舰船电力系统中变频调速电机,这个问题严重影响了变频调速电机的可靠性,从而制约了变频调速电机在现有舰船上的应用。本文针对变频调速电机,基于双频注入信号法,设计了一种在线测定变频调速电机绝缘电阻及对地电容的方法,并对其预先调试做出了分析。通过Matlab对该方法的仿真,验证了此方法的正确性。
        Because of the complex environment of the ship, most of the traditional online insulation monitoring methods cannot be well applied to variable frequency speed-controlling electric motors in ship power system. This problem seriously affects the reliability of the frequency conversion motor, thus the application of VVVF motor on the ships is restricted. In this paper, a method for on-line measurement of insulation resistance and ground capacitance of variable frequency motor is designed based on dual-frequency injection signal method, and its pre-debugging is analyzed. The correctness of the method is verified by the simulation of MATLAB.

引文

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