Journal of Fisheries and Marine Sciences Education (수산해양교육연구)

The Korean Society for Fisheries and Marine Sciences Education (한국수산해양교육학회)
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Sensorless Control of a Permanent Magnet Synchronous Motor for Electric Propulsion System of Small Ships

소형 선박용 전기추진시스템을 위한 PMSM의 센서리스 제어

  • Received : 2017.03.14
  • Accepted : 2017.05.08
  • Published : 2017.06.30
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Abstract

This paper proposes a sensorless speed control of a permanent magnet synchronous motor (PMSM) based on an adaptive sliding mode observer (SMO) for electric propulsion system of small ships. An adaptive observer gain is proposed based on the Lyapunov's stability criterion to reduce the chattering problem at any speed operation instead of the constant gain observer. Furthermore, a cascade low-pass filter with variable cut-off frequency is suggested to strengthen the filtering capability of the observer. The experimental results from a 1.5 kW PMSM drive are provided to verify the effectiveness of the proposed adaptive SMO. The result shows that the proposed method gives good speed control performances even when the PMSM operates at 0.5% from its rated speed value.

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References

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  1. Analysis of Effect of SMO and PI controllers on Sensorless Control Performance of a PMSM for Electrical Propulsion System of Small Ships vol.30, pp.6, 2018, https://doi.org/10.13000/JFMSE.2018.12.30.6.2112