Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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Sensorless Estimation of Single-Phase Hybrid SRM using Back-EMF

  • Tang, Ying (Dept. of Mechatronics Engineering, Kyungsung University) ;
  • He, Yingjie (Dept. of Mechatronics Engineering, Kyungsung University) ;
  • Lee, Dong-Hee (Dept. of Mechatronics Engineering, Kyungsung University) ;
  • Ahn, Jin-Woo (Dept. of Mechatronics Engineering, Kyungsung University)
  • Received : 2016.04.24
  • Accepted : 2016.07.27
  • Published : 2017.01.02
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Abstract

This paper presents a novel scheme to estimate the rotor position of a single-phase hybrid switched reluctance motor (HSRM). The back-EMF generated by the permanent magnet (PM) field whose performance is motor parameter independent is adopted as an index to achieve the sensorless control. The differential value of back-EMF is calculated by hardware and processed by DSP to capture a fixed rotor position four times for every mechanical cycle. In addition, to accomplish the normal starting of HSRM, the determination method of the turn-off time position at the first electrical cycle is also proposed. In this way, a sensorless operation scheme with adjustable turn on/off angle can be achieved without substantial computation. The experimental verification using a prototype drive system is provided to demonstrate the viability of the proposed position estimation scheme.

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References

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