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Updated: Dec 22, 2025

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
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Effective generalized predictive control of induction motor.

Patxi Alkorta1, José A Cortajarena1, Oscar Barambones2

  • 1Engineering School of Gipuzkoa, University of the Basque Country (UPV/EHU), Otaola 29, 20600 Eibar, Spain.

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|May 9, 2020
PubMed
Summary
This summary is machine-generated.

A new linear predictive regulator offers excellent control for induction motor (IM) speed and rotor flux. This advanced controller ensures current constraints are met, outperforming traditional PI control schemes.

Keywords:
Current and voltage constraintsGeneralized predictive control (GPC)Indirect vector controlInduction motorSpeed and rotor flux control

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Area of Science:

  • Electrical Engineering
  • Control Systems
  • Power Electronics

Background:

  • Induction motors (IM) are widely used in industrial applications.
  • Traditional control methods like PI controllers have limitations in dynamic performance and handling uncertainties.
  • Over-currents and stator current distortion are critical issues in IM drives.

Purpose of the Study:

  • To present and experimentally validate a novel linear predictive regulator for IM speed and rotor flux control.
  • To achieve superior dynamic performance and ensure fulfillment of current constraints.
  • To offer an effective and robust control solution with reduced computational cost.

Main Methods:

  • Development of a linear predictive regulator in the synchronous reference frame.
  • Utilizing a minimal dynamic model for estimation of rotor flux and load torque.
  • Integration of space vector pulse width modulation (SVPWM) with PI current controllers.
  • Implementation of voltage constraints to ensure linear operation of the modulator.

Main Results:

  • The predictive regulator demonstrates excellent dynamic performance and robustness against parametric uncertainties.
  • It effectively compensates for mechanical dead time in the speed drive.
  • The controller successfully tracks mechanical velocity and rotor flux across a wide speed range with high accuracy.
  • Over-currents and stator current distortion are prevented.

Conclusions:

  • The proposed linear predictive regulator is an effective and robust solution for IM speed and rotor flux control.
  • It offers significant advantages over classic PI control schemes, particularly in dynamic response and constraint handling.
  • The controller's ability to estimate key parameters and compensate for dead time contributes to its high performance.