陶忍

[摘要]由于水电机组内部组成结构日益复杂，软件集成化程度也逐渐增高，我国目前电力系统的调峰、调频和事故的响应能力也再不断提升，而且水电机组正在向着高比转速、大容量、高负载的方向发展，所以，我们不但要对水电机组的各种设备的运行设备进行评估和检测，还要智能诊断方法进行研究。本文先简单介绍了我国水电站机组的现状，并指出了当前故障诊断技术中遇到的问题，同时提出了水电机组故障诊断中常用的技术和方法手段，并对未来的发展方向做了预期。

关键词：水电机组 状态监测 故障诊断技术

[Abstract] due to the increasing complexity of the internal composition structure of hydropower units and the gradual increase of the degree of software integration，the peak shaving，frequency modulation and accident response capacity of China's power system are also continuously improved，and the hydropower units are developing towards the direction of high specific speed，large capacity and high load，We should not only evaluate and detect the operation equipment of various equipment of hydropower units，but also study the intelligent diagnosis method. Firstly，this paper briefly introduces the current situation of hydropower units in China，points out the problems encountered in the current fault diagnosis technology，puts forward the commonly used technologies and methods in hydropower unit fault diagnosis，and forecasts the future development direction.

Key words：hydropower unit condition monitoring and fault diagnosis technology

一、我國水电机组的研究现状

近年来，我国各地大型水电站以及水电装机组的规模屡创新高，众所周知的世界上规模最大的三峡水电站，装机容量2240万千瓦，号称国家“西电东送”骨干工程溪洛渡水电站，装机容量也已经查过1400万千瓦，与原伊泰普水电站的装机容量相近。而正在开发的已发电为主的白鹤滩水电站的单机容量可以达到10万千万的级别，而此电站建成之后，将会成为将仅次于三峡水电站的中国第二大水电站[1]。由此可见，高比转速、大容量、高负载的运行工况下，就使得我国大型水电站的建设面临严峻挑战，如果水电组单机在运行过程中一旦发生故障，甚至停机，那对整个电力系统的稳定性和可靠性运行将是致命的打击，同时也会造成极大的经济损失。

国内一些大型水电机组运行中出……