Analysis and Detection of Inter-Turn Short-Circuit Fault Through Extended Self-Commissioning

作者：Qi Yuan; Zafarani Mohsen; Akin Bilal; Fedigan Stephen E

来源：IEEE Transactions on Industry Applications, 2017, 53(3): 2730-2739.

DOI：10.1109/TIA.2016.2626264

• Eccentricity fault
• electrical parameter
• inter-turn short-circuit fault
• magnetic saturation
• permanent magnet synchronous machines (PMSMs)

This paper presents a comprehensive analysis of permanent magnet synchronous machine stator winding impedance variation in inter-turn short-circuit and eccentricity faults. The phase impedances are monitored through an extended self-commissioning procedure at the standstill mode before or after operation, and hence are agnostic to well-known issues caused by transients, load/speed level, or controller coefficient dependency. Moreover, the effect of stator iron core saturation on the electrical parameters is analyzed in depth. In order to distinguish the inter-turn shorts from the eccentricity fault which exhibits similar behaviors, a classification algorithm based on the saturation effect is introduced and analyzed on the machines with different pole-slot combinations. Both two-dimensional finite element analysis simulation and experimental test results are provided to show the efficacy of this analysis.

• 出版日期2017-6