摘要
由于气体绝缘开关(Gas Insulated Switchgear,GIS)设备在高压和高电场环境下运行,在不影响设备正常运行的情况下,难以准确检测出信号的微小变化,导致GIS绝缘状态检测精度较低。对此,设计基于光声场激发的GIS绝缘状态检测系统。通过激发光源模块向GIS内部发射脉冲激光,获取具备绝缘状态信息的声波;由声波传感模块检测所获取的声波,利用信号采集模块对其进行放大、过滤与转换等处理;检测模块结合奇异值分解法与向量机分类器,提取处理后的GIS信号特征,实现GIS绝缘状态检测。经测试表明,该方法能够准确划分不同GIS信号所处的绝缘状态,精准检测出GIS的绝缘状态。
The Gas Insulated Switchgear(GIS)device operates under high voltage and high electric field.It is difficult to accurately detect small changes in signals without affecting the normal running of the device.As a result,the GIS insulation detection accuracy is low.In this paper,a GIS insulation state detection system based on optical sound field excitation is designed.Pulse laser is emitted into GIS by excitation light source module to obtain sound wave with insulation state information.The sound wave detected by the acoustic sensor module is amplified,filtered and converted by the signal acquisition module.The detection module combines singular value decomposition method and vector machine classifier to extract GIS signal features after processing and realize GIS insulation state detection.The test results show that this method can accurately classify the insulation state of different GIS signals and accurately detect the insulation state of GIS.
作者
石一峰
刘宏宇
张祥帅
夏东
王思齐
SHI Yifeng;LIU Hongyu;ZHANG Xiangshuai;XIA Dong;WANG Siqi(State Grid Suzhou Power Supply Company,Suzhou 215004,China)
出处
《电子设计工程》
2024年第24期147-151,共5页
Electronic Design Engineering
基金
国网江苏省电力有限公司科技项目资助(J2023159)。
关键词
光声场激发
GIS绝缘状态
脉冲激光器
超声波传感器
奇异值分解
optical sound field excitation
GIS insulation state
pulsed laser
ultrasonic sensor
singular value decomposition
作者简介
石一峰(1978-),男,江苏苏州人,硕士,高级工程师。研究方向:电气设备运维。
