An Active-Reactive Power Method for the Diagnosis of Rotor Faults in Three-Phase Induction Motors Operating Under Time-Varying Load Conditions

被引：64
作者：
Cruz, Sergio M. A. [1 ,2 ]
机构：
[1] Univ Coimbra, Dept Elect & Comp Engn, P-3030290 Coimbra, Portugal
[2] Univ Coimbra, Inst Telecomunicacoes, P-3030290 Coimbra, Portugal
来源：
IEEE TRANSACTIONS ON ENERGY CONVERSION | 2012年 / 27卷 / 01期
关键词：
Active-reactive power; condition monitoring; induction machines; load torque oscillations; rotor faults; SIGNATURE ANALYSIS; BARS;
D O I：
10.1109/TEC.2011.2178027
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This paper presents a new method to diagnose rotor faults in operating three-phase induction motors under the presence of time-varying loads. The proposed diagnostic strategy relies on a combined analysis of the amplitude and phase spectra of the instantaneous active and reactive powers of the motor, and allows to discriminate the effects introduced by a rotor fault from the ones caused by an oscillating load torque, even when these phenomena occur simultaneously. A theoretical analysis carried out using a linearized model of the induction motor in a synchronous reference frame, complemented with several simulation and experimental results, confirms the validity of the proposed diagnostic approach.
引用
收藏
页码：71 / 84
页数：14
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