特高压电抗器振动加速度传感器位置优化研究  

Study of Location Optimization of Vibration Acceleration Sensor for Ultra High Voltage Reactor

作　　者：田昊洋 林敏 黄华 袁国刚 

机构地区：[1]国网上海市电力公司电力科学研究院,上海200436 [2]上海睿深电子科技有限公司,上海201108

出　　处：《电力电子技术》2017年第10期98-101,共4页Power Electronics

基　　金：国网上海市电力公司科技项目(52094015001F)~~

摘　　要：振动加速度传感器布置优化在大型特高压变压器与电抗器的结构健康监测和评价分析中起着重要作用。选取上海练塘特高压1 000 kV电抗器为研究对象,分别采用有效独立法和基于平均加速度幅值修正的有效独立法,从简化的电抗器后壁有限元模型动力学分析结果中选取与100 Hz工作频率相关的模态振型,随后构建Fisher信息矩阵,通过迭代法在己有常规传感器布置方案基础上,逐步剔除对振动响应贡献较小的位置点,最终分别得到二组优化后的传感器布置方案。通过实验数据的进一步验证,相较常规方案,优化后的方案在减少传感器数量的同时,能保证覆盖电抗器在正常工作状态下响应幅值较大的区域,从而为这类特高压电抗器在振动监测中的传感器布置提供指导。Optimal vibration acceleration sensor is a key task in ultra high voltage transformer and reactor＇s structural health monitoring work.This study chooses a 1 000 kV ultra high voltage reactor as research object and build a sim- plified finite element method model of ultra high voltage reactor＇s back wall for modal analysis, then the extracted modal shapes related to the excited frequency（ 100 Hz） are used to establish the Fisher information matrix through effective independence method and average acceleration amplitude correction effective independence method ,then eli- minate the points whose vibration contribution can be ignored by iteration method.The difference of optimized results are compared with experimental data, both two optimized sensor placement not only reduce the number of total sen- sors but also covers the region which amplitude of vibration response is higher.This study can provide reference to future vibration testing method research of this type of ultra high voltage reactor transformer and reactor.

关 键 词：特高压电抗器 传感器位置优化 信息矩阵 

分 类 号：TM47[电气工程—电器]