Adaptive Full-Order Observer With High-Frequency Signal Injection for Synchronous Reluctance Motor Drives

  title={Adaptive Full-Order Observer With High-Frequency Signal Injection for Synchronous Reluctance Motor Drives},
  author={Toni Tuovinen and Marko Hinkkanen},
  journal={IEEE Journal of Emerging and Selected Topics in Power Electronics},
  • T. Tuovinen, M. Hinkkanen
  • Published 12 May 2013
  • Engineering
  • IEEE Journal of Emerging and Selected Topics in Power Electronics
A back electromotive force-based position observer for motion-sensorless synchronous reluctance motor (SyRM) drives is augmented with high-frequency signal-injection method for improved low-speed operation. Previously proposed observer structure is further improved to account for the cross saturation in the motor. The combined observer is experimentally evaluated using a 6.7-kW SyRM drive in low-speed operation and under various load conditions. The resulting position error at low speeds and… 

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