基于振动的断路器状态检测系统的设计与开发

发布时间：2018-06-01 08:04

本文选题：中压断路器 + 振动信号　；参考：《高压电器》2014年12期

【摘要】：中压断路器是电网中重要的电力设备,对其进行状态检测有利于发现潜在隐患。振动检测是一种非侵入的检测方法,振动信号是断路器内部一系列振动事件的响应,包含丰富的断路器机械状态信息,因此,设计开发一套基于振动的断路器状态检测系统是非常有意义的。在构建该系统过程中,考虑了振动传感器的型号与安装位置、设计了信号调理电路、选择了数据采集卡等硬件,同时利用VC++和Lab VIEW开发了数据采集、截取与分析软件,具有友好人机交互界面。在分析方法上,计算振动信号的信息熵向量作为故障诊断特征向量,利用支持向量机实现故障诊断。该状态检测系统能高效快捷地实现对断路器操作过程中振动信号的采集,同时,准确地完成断路器的故障分类诊断。
[Abstract]:Medium-voltage circuit breaker is an important power equipment in power network. Vibration detection is a non-intrusive detection method. The vibration signal is the response of a series of vibration events inside the circuit breaker, which contains abundant information on the mechanical state of the circuit breaker. It is very meaningful to design and develop a circuit breaker state detection system based on vibration. In the process of constructing the system, the model and installation position of vibration sensor are considered, the signal conditioning circuit is designed, the hardware such as data acquisition card is selected, and the software of data acquisition, interception and analysis is developed by using VC and Lab VIEW. Friendly man-machine interface. In the analysis method, the information entropy vector of the vibration signal is calculated as the feature vector of fault diagnosis, and the support vector machine is used to realize the fault diagnosis. The state detection system can efficiently and quickly collect the vibration signals during the operation of the circuit breaker, and at the same time, accurately complete the fault classification and diagnosis of the circuit breaker.
【作者单位】：西安交通大学电力设备电气绝缘国家重点实验室;国网陕西省电力公司电力科学研究院;
【分类号】：TM561

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