向家坝水电站状态监测系统设计与应用

Design and Application of Condition Monitoring System for Xiangjiaba Hydropower Station

本文介绍了向家坝水电站状态监测系统总体设计情况,从状态监测系统的监测内容、网络结构、监测方式、安全防护等方面进行了阐述,重点介绍了主设备在线监测趋势分析系统、机组振摆监测系统、发电机局部放电监测系统、高压电缆局部放电监测系统、GIS局部放电监测系统、变压器油中溶解气体监测系统等子系统的主要构成和原理,对各系统使用的设备分析与诊断技术进行了归纳和分析。最后对大型水电站状态监测系统的设计和发展进行总结和展望.

This paper introduces the general design of the condition monitoring system of Xiangjiaba Hydropower Station, and expounds the monitoring content, network structure, monitoring mode and safety protection of the condition monitoring system. It focuses on the components and principles of on-line monitoring trend analysis system of main equipment, vibration monitoring system of generating unit, generator partial discharge monitoring system, high voltage cable partial discharge monitoring system, GIS partial discharge monitoring system and dissolved gas monitoring system in transformer oil. The equipment analysis and diagnosis techniques used in each system are summarized and analyzed.. Finally, the design and development of condition monitoring system for large hydropower stations are summarized and prospected in this paper.