基于CAN总线的高压断路器在线状态监测系统

Research on On-Line Condition Monitoring System of High Voltage Circuit Breaker Based on CAN Bus

摘要: 高压断路器是电力系统中最重要的、应用十分广泛的控制和保护设备，其可靠运行对电力系统的安全性及稳定性至关重要。论文提出了一种基于CAN总线的高压断路器在线状态监测系统，构建了高压断路器在线监测系统，分析了高压断路器在线监测的内容、步骤及要求，设计了能完整监测一组高压断路器的基于CAN总线的在线状态监测装置，自行研发了适于高压断路器在线监测的角位移传感器、振动传感器。系统现场监测装置利用DSP数据处理能力强的特点，实时处理现场监测数据并将多个测量信号进行融合，把系统运行状态信息转换为设备各功能部件的故障特征信息，大大减少通信数据量以便于高压断路器DCS监测网络的实现，通过在区域上位机和任务管理节点处建立数据管理库，运用现代数据管理技术，结合信息传输技术，实现对高压断路器在线监测数据的历史和横向的管理，实现从定期检修向状态检修转变。

Abstract: High voltage circuit breaker is the most important and widely used control and protection equip-ment in power system; its reliable operation is very important for the security and stability of power system. A high voltage circuit breaker on-line condition monitoring system based on CAN bus is proposed in this paper, the on-line monitoring system of high voltage circuit breaker is con-structed, the contents, steps and requirements of online monitoring of high voltage circuit breaker are analyzed, an on-line state monitoring device based on CAN bus which can monitor a set of high voltage circuit breakers is designed, and the angular displacement sensor and vibration sensor for on-line monitoring of high voltage circuit breaker is developed. The system on-site monitoring device utilizes the characteristics of DSP data processing capability, the on-site monitoring data and integration of the plurality of measurement signals are realized, and the system running state information is converted into the fault characteristic information of each function part of the equipment, greatly reducing the amount of communication data in order to facilitate the imple-mentation of high voltage circuit breaker DCS monitoring network, through the regional PC and task management node to establish a data management library, and through the use of modern data management technology, combined with information transmission technology, to achieve high voltage circuit breaker on-line monitoring data history and horizontal management, to achieve from the regular maintenance to the state maintenance changes.