Title :
Inter-turn fault detection in PM synchronous machines by physics-based EMF estimation
Author :
Sarikhani, Ali ; Mohammed, Osama A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Florida Int. Univ., Miami, FL, USA
Abstract :
Inter-turn short circuit fault (ISCF) detection, in permanent magnet synchronous machines (PMSM) was developed using a physics-based back electromotive force (EMF) estimator. The electro-thermal saturation-dependent model of the machine was employed in the heart of the open loop estimator. The fault detection system works based on the difference between the estimated EMF and a reference EMF. A 0.8 (kW) PMSM machine was studied experimentally under different ISCF and operational contingencies. The results show acceptable performance in fault detection for wide speed range even in the presence of harmonic loads and dynamic eccentricities.
Keywords :
fault diagnosis; permanent magnet machines; synchronous machines; ISCF; PM synchronous machines; dynamic eccentricities; electro-thermal saturation-dependent model; harmonic loads; inter-turn short circuit fault detection; open loop estimator; operational contingencies; permanent magnet synchronous machines; physics-based EMF estimation; physics-based back electromotive force estimator; power 0.8 kW; Computational modeling; Equations; Mathematical model; Numerical models; Resistance; Stators; Windings; Inter-turn Fault; back (EMF) estimation; permanent magnet synchronous machine; physics-based model of PMSM;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2012 IEEE
Conference_Location :
Raleigh, NC
Print_ISBN :
978-1-4673-0802-1
Electronic_ISBN :
978-1-4673-0801-4
DOI :
10.1109/ECCE.2012.6342672
