A fast simulation model for permanent magnet synchronous motor (PMSM) based system

P. O. Ohiero, C. Cossar, J. Melone, N. Schofield

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)

Abstract

This paper presents a method for reducing the simulation execution time associated with modelling a Permanent Magnet Synchronous Motor and Voltage Source Inverter (PMSM-VSI) based drive system. The proposed method is based on an analytical estimation of the 'average' ac voltage across each phase of the PMSM during each PWM switching period and then using these averages as piecewise-linear voltage sources for each motor phase. The model reproduces the functionality of the VSI and outputs 3 phase ac phase currents from a DC voltage source based on the existing PMSM motor and digital controller models such that machine and controller performance/limitations can still be evaluated and optimised. The VSI based model and average voltage model have been implemented in the PORTUNUS simulation package. Simulation results for a small <1kW PMSM shows excellent agreement of the average voltage model with the switching model over the complete operating range, including the non-sinusoidal phase current field-weakening region, but with the execution time of the average voltage model being typically five times faster.

Original languageEnglish
Title of host publication7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014
PublisherInstitution of Engineering and Technology
Number of pages6
ISBN (Print)9781849198158
DOIs
Publication statusPublished - 10 Apr 2014
Event7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014 - Manchester, United Kingdom
Duration: 8 Apr 201410 Apr 2014

Publication series

Name7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014

Conference

Conference7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014
Abbreviated titlePEMD 2014
CountryUnited Kingdom
CityManchester
Period8/04/1410/04/14

Keywords

  • average voltage estimation
  • PMSM drive
  • PWM PI current control
  • torque-speed characteristics
  • VSI
  • permanent magnet motors
  • synchronous motors
  • drives
  • invertors
  • machine control

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  • Cite this

    Ohiero, P. O., Cossar, C., Melone, J., & Schofield, N. (2014). A fast simulation model for permanent magnet synchronous motor (PMSM) based system. In 7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014 (7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014). Institution of Engineering and Technology. https://doi.org/10.1049/cp.2014.0312