Stator inter-turn faults diagnosis in induction motors using zero-sequence signal injectionInspec keywordsOther keywords

被引：4
|
作者：
Otero, Marcial [1 ]
de la Barrera, Pablo M. [1 ]
Bossio, Guillermo R. [1 ]
Leidhold, Roberto [2 ]
机构：
[1] Natl Univ Rio Cuarto, Res Inst Energy Technol & Adv Mat IITEMA, Rio Cuarto, Argentina
[2] Otto von Guericke Univ, Inst Elect Power Syst IESY, Magdeburg, Germany
来源：
IET ELECTRIC POWER APPLICATIONS | 2020年 / 14卷 / 14期
关键词：
induction motor drives; fault diagnosis; induction motors; stators; stator winding; simple signal processing; incipient stator inter‐ turn faults; stator inductances; zero‐ sequence high‐ frequency signal; time‐ variable speed conditions; variable load; sequence signal injection; stator inter‐ turn faults diagnosis; ROTOR POSITION ESTIMATION; SHORT-CIRCUIT; MACHINES; DRIVES; INSULATION; STRATEGY; MODEL; BARS; SENSORS;
D O I：
10.1049/iet-epa.2020.0461
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This study presents a strategy for stator inter-turn faults diagnosis in induction motors (IMs) operating under time-variable load and time-variable speed conditions. The strategy consists in injecting a zero-sequence high-frequency signal in order to analyse variations in the stator inductances. Incipient stator inter-turn faults are detected by a simple signal processing of the derivatives of the currents. A feature of the strategy is that the zero-sequence high-frequency signal is generated by the inverter that feeds the machine, without modifying the standard space vector modulation of the IM-drive. Experimental results show that faults representing <1% of the stator winding can be detected, as well as the phase location of the fault, validating this proposal.
引用
收藏
页码：2731 / 2738
页数：8
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