Water-turbine generator set bearing temperature analysis and abnormity monitoring method

Abstract

The invention provides a water-turbine generator set bearing performance analysis and abnormity monitoring method. The method comprises the following steps that a water-turbine generator set bearing detection device collects generator set bearing bush temperature data of a water-turbine generator set, generator set bearing vibration data and environment vibration data of the generator set bearing; and scoring the collected data according to a generator set bearing bush temperature scoring model, a generator set bearing vibration data scoring model and a generator set bearing environment vibration data scoring model, and scoring the comprehensive performance of the water-turbine generator set bearing according to a generator set bearing performance scoring model. Judging whether the generator set bearing performance state is abnormal or not according to the generator set bearing performance score; according to the invention, the real state of the generator set bearing performance can be obtained by comprehensively considering the relation among the set bearing bush temperature, bearing vibration and environment vibration, and whether abnormity exists or not can be found in time.

Description

technical field [0001] The invention relates to the field of hydraulic turbine unit equipment detection, in particular to a method for temperature analysis and abnormality monitoring of a hydraulic turbine generator unit bearing. Background technique [0002] A hydro-generator set refers to a generator that converts water energy into electrical energy with a water turbine as the prime mover. It is the main power equipment for generating electric energy in a hydropower station. A hydro-generator set is generally designed with guide bearings and thrust bearings at the upper and lower ends of the generator shaft. , to withstand the axial load and radial swing of all the rotating parts of the generator set. When the hydro-generator set is working, the temperature and vibration amplitude of the bearing will appear abnormal. The existing condition monitoring system can only be used in the hydro-generator set. An alarm is issued when a bearing fails, and it is impossible to discove...

AI Technical Summary

Problems solved by technology

[0002] A hydro-generator set refers to a generator that converts water energy into electrical energy with a water turbine as the prime mover. It is the main power equipment for generating electric energy in a hydropower station. A hydro-generator set is generally designed with guide bearings and thrust bearings at the upper and lower ends of the generator shaft. , to withstand the axial load and radial swing of all the rotating parts of the generator set. When the hydro-generator set is working, the temperature and vibration amplitude of the bearing will appear abnormal. The existing condition monitoring system can only be used in the hydro-generator set. An alarm is issued when a bearing fails, and it is impossible to discover potential fault sources, analyze the cause of the fault, and provide maintenance strategies

Images