小波变换在汽轮发电机无刷励磁系统预测检修中的应用

大型发电机组比中、小型发电机组有明显的经济效益,但也带来了一些新问题,这主要是事故相对多了,特别是在大型机组投入运行的初期.本文提出将小波变换应用到针对火电、核电厂的各类大型发电机在运行、检修和试验中的一种新方法.它既可以早期发现故障并及时采取有效的技术,组织措施,做到防患于未然,保证发电机的安全运行;又可以通过监测评估发电机的当前状态,进而决定检修策略和方法.当发生故障时迅速与继电设备通讯,快速准确.

Application of Wavelet Transform in Predictive Maintenance of Turbine Generator Brushless Excitation System

Although large-scale generator has better economic benefit than middle and small generator, it also brings some new problems like more accidents happening in initial stage of operation. The article gives a new method of applying wavelet transform to the operation, check and testing of large-scale generators in thermal and nuclear power plants. It not only can detect failure in initial stage and take effective technical and organizational measures to prevent accidents, but also can monitor and evaluate the current status of generators and decide check methods. When the accident happens, it can realize last and accurate communication with relay equipments.