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Improving the accuracy of wound-rotor resolvers under inter-turn short circuit faults

Lasjerdi, H ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1109/JSEN.2020.3040496
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2020
  4. Abstract:
  5. The performance of the resolver as a position sensor is significantly influenced by electrical and mechanical faults. Among different faults, short circuit in the stator windings has more destructive effect than others on accuracy of resolver. Furthermore, due to thin wires of the stator it is highly likely to occur. Therefore, in this paper a robust design is proposed for wound-rotor resolvers to not only suppress the influence of short circuit fault in the stator/rotor winding, but also improve the accuracy of the sensor under mechanical faults. The effectiveness of the proposed robust design is demonstrated by an analytical model based on winding function method and then approved by time stepping finite element analysis (TSFEA) and experimental measurements on a prototype sensor. IEEE
  6. Keywords:
  7. Electrical Faults ; Robust Design ; Time-Stepping Finite Element Analysis (TSFEA) ; Winding Function (WF) method ; Wound Rotor (WR) Resolver ; Stators ; Timing circuits ; Winding ; Destructive effects ; Inter-turn short circuit fault ; Mechanical faults ; Position sensors ; Prototype sensor ; Short-circuit fault ; Winding function methods ; Rotors (windings)
  8. Source: IEEE Sensors Journal ; Volume 21, Issue 5 , November , 2020 , Pages: 5944 - 5951
  9. URL: https://ieeexplore.ieee.org/document/9270009