Back-Emf-Based Sensorless Field-Oriented Control of PMSM Using Neural-Network-Based Controller with a Start-Up Strategy

  • V. S. Nagarajan
  • M. Balaji
  • V. Kamaraj
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 325)


This paper describes back-emf-based sensorless field-oriented control (FOC) of permanent magnet synchronous motor (PMSM) of surface-mounted type, employing neural-network-based controller for current and speed control. The dynamic response is improved. Further, rotor position is estimated by back-emf method. To overcome the shortcoming of back-emf-based control in zero and low speed, a start-up strategy is proposed, to predict the initial rotor position. The PMSM drive model is simulated in MATLAB/Simulink environment, and the results show improved dynamic response with a start-up strategy.


Neural network Back emf Rotor position Startup 


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Copyright information

© Springer India 2015

Authors and Affiliations

  1. 1.Department of EEESSNCEChennaiIndia

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