119 / 2021-08-19 14:38:34
Fault Diagnosis of Inter-turn Short Circuit in Rotor Winding of Doubly-fed Generator Based on Data Fusion of Multi-flux Sensors
Final Paper
Feng Liang / Xi'an Jiaotong University
Yu Chen / Xi'an Jiaotong University
shouwang zhao / Xi'an Jiaotong University
Attiq Ur Rehman / Xi'an Jiaotong University
双 王 / 西安交通大学
Yong Zhao / Xi’an Thermal Power Research Institute Co. Ltd
Wei Deng / Xi’an Thermal Power Research Institute Co. Ltd
Yong Ma / Xi’an Thermal Power Research Institute Co. Ltd
Yonghong Cheng / Xi'an Jiaotong University
      Inter-turn short circuit fault in doubly-fed generator is a common electrical fault that directly affects the normal operation of the wind turbine and endangers the safety of the grid connection. This paper proposes an inter-turn short circuit fault identification technology based on multi-flux sensor data fusion. A simulation experiment platform for the inter-turn short circuit fault of a doubly-fed generator with a power of 100kW is used, consisting of a three-phase wound rotor induction machine, monitoring systems, frequency converters, and related control a drive motor. This experimental system can genuinely simulate the actual working conditions of the machine when the machine is short-circuited, and the experimental simulation can be closer to the operation process of the double-fed induction generator. The signal detection system is used to collect the external magnetic flux leakage signal of the motor. We place magnetic flux sensors in the axial and radial positions and extract the RMS value of each magnetic flux sensor as the characteristic value. Use DS evidence theory to fuse data from magnetic flux sensors to determine the operating status of the generator. This method can effectively detect the short circuit fault of rotor windings.
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  • Conference Date

    Oct 21



    Oct 23


  • Oct 26 2021

    Registration deadline

Sponsored By
Southeast University, China
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