Permanent magnet synchronous motors are globally asymptotically stabilizable with PI current control

Romeo Ortega, Nima Monshizadeh, Pooya Monshizadeh Naini, Dmitry Bazylev, Anton Pyrkin*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

30 Citations (Scopus)
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Abstract

This note shows that the industry standard desired equilibrium for permanent magnet synchronous motors (i.e, maximum torque per Ampere) can be globally asymptotically stabilized with a PI control around the current errors, provided some viscous friction (possibly small) is present in the rotor dynamics and the proportional gain of the PI is suitably chosen. Instrumental to establish this surprising result is the proof that the map from voltages to currents of the incremental model of the motor satisfies some passivity properties. The analysis relies on basic Lyapunov theory making the result available to a wide audience. (C) 2018 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)296-301
Number of pages6
JournalAutomatica
Volume98
DOIs
Publication statusPublished - Dec-2018

Keywords

  • Motor control
  • PI control
  • Passivity theory
  • Nonlinear control
  • SENSORLESS CONTROL
  • POWER NETWORKS
  • SYSTEMS
  • PASSIVITY
  • CASCADE

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