Study on DFIG stator turn-to-turn short circuit considering control strategy

Li, Junqing; Zongyi, Tong; Li, Zhonghui

doi:10.1109/icems.2017.8056005

Cited by 2 publications

(1 citation statement)

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“…For the DFIG, winding inter-turn short circuit is a typical fault, and rotor eccentricity is a typical mechanical fault.Reference [1] proposed a detection method that uses the stator negative-sequence apparent impedance filter value as the characteristic quantity of stator inter-turn fault, which has good sensitivity. Reference [2][3][4] determines the fault characteristic by analyzing the negative-sequence current generated in the stator after the stator inter-turn short, and analyzes factors such as the power supply voltage-asymmetry that affect the stator negative-sequence current. Reference [5][6] analyzed the electromagnetic fields of the DFIG of inter-turn short circuit , pointing out that the stator inter-turn short causes fractional .…”

Section: Introductionmentioning

confidence: 99%

Analysis of stator winding interturn short circuit considering rotor static eccentricity in doubly fed induction generator

Wang¹

2023

3rd International Conference on Applied Mathematics, Modelling, and Intelligent Computing (CAMMIC 2023)

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This article analyzes the inherent mixed eccentricity of the Doubly Fed Induction Generator（DFIG） rotor caused by incomplete alignment in practical applications, and studies the impact of the inherent mixed eccentricity faults. An ideal motor model and a practical motor simulation model considering the inherent mixed eccentricity of the rotor were built using Ansoft Maxwell 2D electromagnetic field finite element analysis software. Frequency spectrum analysis was performed in currents and electromagnetic torque of two models. The simulation results show that the inherent mixed eccentricity of the rotor may cause characteristic frequencies similar to those of the rotor winding inter-turn short-circuit faults in the rotor line current and electromagnetic torque, which may lead to misdiagnosis of inter-turn short-circuit faults.

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Section: Introductionmentioning

confidence: 99%