大型发电机定子绕组局部放电在线监测系统的研究

Research of on-line monitoring and diagnosis system for large generator stator windings partial discharge

提出了一种用于现场的发电机局部放电在线监测系统的实现方案。这个方案采用客户机/服务机形式的局域网结构,以光纤传输作为局域网的连接。在系统设计中从局部放电监测点的选择、硬件结构和软件编程等多方面考虑了抑制噪声干扰的问题。这个监测系统在实验室和现场进行了测试。

The on\|line monitoring and diagnosis system for large generator stator windings partial discharge is presented. The client/server modal and the LAN (Local Area Networks) connection technique used by optic fiber transmission are applied in this system. EMI problems are considered when designing of the system, such as the detector position, the hardware, the software and other problems. The monitoring and diagnosis system has been tested in the laboratory and at the site of the power plant. The test results show that the system is feasible.