一种柔直换流阀及阀控运行状态智能监测方法

An Intelligent Monitoring Method for Flexible Converter Valve and Valve-controlled Operation State

设计了一套智能监测分析系统,用于采集柔性直流换流阀及阀控系统的运行状态数据,并对采集到的数据进行缓存、故障特征提取、特征分析处理,并具备人机交互功能。通过数据采集及处理、分析,该系统能将柔性直流换流阀及阀控的运行状态以图形的方式呈现,突出展示故障点,进而达到提升换流阀及阀控运行状态的智能化监测水平的目的。同时,将故障分析的评估方法量化,有利于更好地观察换流阀及阀控运行状态。此分析系统已完成软硬件设计,并在渝鄂直流背靠背工程上进行了测试验证。测试结果表明,该系统可实现对柔性直流输电换流阀及阀控系统运行参数的在线监测和智能分析,为换流阀可靠运行提供了一种有效的监测手段。

An intelligent analysis system has been designed,which can realize data acquisition,data analysis and processing,data cache,fault feature extraction,man-machine interaction and other functions of converter valve and valvecontrolled operation parameters.This achievement can present the flexible direct current value and valve-controlled operation state through data analysis and graphics,and highlight the fault points,which can improve the monitoring intelligence of the converter valve and valve-controlled operation state,and quantify the evaluation method,which is conducive to better observation of the converter valve and valve-controlled operation state.The software and hardware design of the on-line monitoring system has been completed,and it has been tested and verified on the back-to-back direct current projects in Chongqing and Hubei.The test results show that the system can realize the on-line monitoring and intelligent analysis of flexible direct current converter valves and valve-controlled operating parameters,providing an effective monitoring means for the reliable operation of converter valves.