电机与控制应用Issue(3)：71-75,5.
两相静止坐标系下有功功率的异步电机转子故障诊断
Rotor Fault Diagnosis of Asynchronous Motor Based on Instantaneous Active Power in Two-Phase Static Coordinates
曾志 1王臻 2李承2
作者信息
- 1. 咸宁职业技术学院，湖北 咸宁 437000
- 2. 华中科技大学 电气与电子工程学院，湖北 武汉 430074
- 折叠
摘要
Abstract
The rotor broken bar Diagnosis based on the instantaneous active power in the two-phase static coordinate was proposed. The theoretical and experimental verification showed that the fault characteristic frequency components f b(fb =2sf1) of broken bar was extracted from active power pα、pβ in the two-phase static coordinate because of the fault signal of the stator current. The fault characteristic frequency was effectively exempted to be drowned easily by the base wave frequency, and it’s amplitude was high and identified. The amplitude of fb for the case of early fault highlights the ability of online recognition in the early fault diagnosis. Experimental spectrum showed that the amplitude of fb raise along with the increase of broken bar, which coincides to physical truth. At the same time, the trend was beneficial to the quantification of the fault extent and establishment of diagnostic rules.关键词
两相静止坐标系/瞬时有功功率/断条故障/特征故障频率/在线监测Key words
two-phase static coordinates/instantaneous active power/rotor broken bar/characteristics of the motor fault frequency/On-line monitoring分类
信息技术与安全科学引用本文复制引用
曾志,王臻,李承..两相静止坐标系下有功功率的异步电机转子故障诊断[J].电机与控制应用,2015,(3):71-75,5.
