Nonlinearities’s Recoupment of Interior Permanent Magnet Synchronous Motor Drives

Nonlinearities’s Recoupment of Interior Permanent Magnet Synchronous Motor Drives

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2018 by IJETT Journal
Volume-58 Number-2
Year of Publication : 2018
Authors : L. Dhamo, A. Spahiu, P. Marango
DOI :  10.14445/22315381/IJETT-V58P213

Citation 

L. Dhamo, A. Spahiu, P. Marango "Nonlinearities’s Recoupment of Interior Permanent Magnet Synchronous Motor Drives", International Journal of Engineering Trends and Technology (IJETT), V58(2),65-71 April 2018. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract
Variable Speed Control schemes of electric drives with Permanent Magnet Synchronous Motors contain microcontrollers of high quality in order to provide implementation of complex control algorithms to ensure high performance for speed and torque control. Since in practical industrial applications, this is not always demanded, make sense the construction of simpler schemes that adopt simpler algorithms and need no costly microcontroller. In this paper we have developed a simplified scheme for speed and torque control of PMSM drive having only one control loop (the traditional scheme has 2 loops) and only one PI controller (the traditional scheme has 3 PI controllers). Because of the electric drive of PMSM has an emphatic presence of nonlinearities, our expectations related with performance are not too high. Our contribution consist in modifying the PI controller with nonlinearities added purposely in order to obtain technical improvements for speed response. Our scheme is developed and tested at MATLAB/Simulink and confirm that the nonlinearities are very good tools for nonlinearity „s recoupment of PMSM drives.

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Keywords
nonlinear PI controller, PMSM, simplified scheme for VSC drives.