Nonlinear control of electrical machines using nonlinear feedback

Zbigniew Krzeminski*, Haitham Abu-Rub

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Citation (Scopus)

Abstract

A recent trend in advanced drive control has enabled an AC motor to behave like a separately excited DC motor. This goal has been almost achieved since introducing the vector control principle. The linearity of the control system using nonlinear feedback requires the accessibility to all state variables. To use nonlinear feedback, it is desirable to obtain a mathematical description of the nonlinear dynamic system as a system of differential equations. Combining nonlinear feedback with the nonlinear model, and then making variable transformations, converts the highly nonlinear dynamic system, such as an IM, into a linear object. This is shown step-by-step in this chapter. After obtaining a linear structure of the dynamic system, it will be possible to use a simple cascaded structure of PI controllers, as shown in this chapter. The multiscalar variables for double-fed induction machine can be selected as stator flux and rotor current.

Original languageEnglish
Title of host publicationHigh Performance Control of AC Drives with Matlab®/Simulink
Publisherwiley
Pages299-335
Number of pages37
ISBN (Electronic)9781119591320
ISBN (Print)9781119590781
DOIs
Publication statusPublished - 30 Apr 2021
Externally publishedYes

Keywords

  • Double-fed induction machine
  • Electrical machines
  • Multiscalar variables
  • Nonlinear control
  • Nonlinear feedback

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