Automatic System for Failure Detection in Hydro-Power Generators

• 作者: Camila Paes Salomon Erik Leandro Bonaldi Germano Lambert-Torres Jonas G. Borges da Silva Levy Ely de Lacerda de Oliveira Luis Carlos Ribeiro Luiz Eduardo Borges da Silva
• 来源期刊: 电力能源(英文)
• 学科: 工学
• 关键词: Automatic System ON-LINE Measurements Digital SIGNAL Processing PREDICTIVE Maintenance FAILURE Detection
• 年，卷（期）: 2014,（4）
• 页码范围: 36-46
• 页数: 11页
• 分类号: TP39

摘要

This paper presents an automatic system for failure detection in hydro-power generators. The main idea of this system is to detect failure using current and voltage signals acquired without any type of internal interference in the generator operation. The detected failures could be mechanical or electrical origins, such as: problems in bearings, unwanted vibrations, partial discharges, misalignment, unbalancing, among others. It is possible because the generator acts as a transducer for mechanical problems, and they appear in current and voltage signals. This automatic system based on electric signature analysis has been installed in Itapebi Power Plant generators since 2012. Some results are presented in this paper.