1. Detection and Localization of Open-Phase Fault in Three-Phase Induction Motor Drives Using Second Order Rotational Park Transformation.
- Author
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Hajary, Ali, Kianinezhad, Reza, Seifossadat, S.Gh, Mortazavi, S.S, and Saffarian, Alireza
- Subjects
MOTOR drives (Electric motors) ,INDUCTION machinery ,INDUCTION motors ,FAULT diagnosis ,POWER electronics ,ELECTRIC equipment ,PARKS - Abstract
The open-phase fault in vector-controlled drives is known as one of the most prevalent failures that require immediate detection. It is still challenging to develop a trustable fault diagnosis scheme at light load, transients, and low-speed regions. This paper presents a novel open-phase fault diagnosis strategy for three-phase induction motor drives over the entire speed range and for different load conditions. By taking advantage of the second-order rotational park transformation (SORP), new fault indices are proposed to identify the open-phase location without using any additional sensors or electric equipment. Comparing with root-mean-square (RMS) calculation-based methods, the proposed method detects the fault at least twice faster, with minimal system resources. The presented scheme may be implemented simply and is robust against the operating point changes. Proof of the proposed fault detection and localization method has been shown through experimental tests on a 250-W three-phase induction machine which is controlled by TI-DSP F28335. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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