NDLI: Torque and state estimation for real-time implementation of multivariable control in sensorless induction motor drives

Content Provider	IET Digital Library
Author	Merabet, Adel Tanvir, Aman A. Beddek, Karim
Abstract	This study presents a strategy for estimating the states and the load torque to implement a feedback linearisation controller for induction motor drives. The multivariable control is carried out using input–output linearisation feedback law in order to track profiles of the rotational speed and the rotor flux amplitude. The unknown load torque is compensated by an estimator based on the speed error. The state estimation requires only the measurements of the stator voltages–currents. The estimation method is not invasive as no mechanical sensors are needed. Experimental platform equipped with sensors at the load side, for measuring the speed and the torque of the motor driven by the Opal-RT real-time system, was implemented to verify the accuracy of the proposed estimation method to implement the multivariable control.
Starting Page	653
Ending Page	663
Page Count	11
ISSN	17518660
Volume Number	11
e-ISSN	17518679
Issue Number	Issue 4, Apr (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-epa/11/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-epa.2016.0557
Journal	IET Electric Power Applications
Publisher Date	2017-04-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Acceleration Angular Velocity Measurement Asynchronous Machine Control of Electric Power System Current Measurement Drive Electric Current Measurement Feedback Feedback Linearisation Controller Induction Motor Drive Input-output Linearisation Feedback Law Linearisation Technique Load Torque Estimation Mechanical Variables Measurement Multivariable Control Multivariable Control System Opal-RT Real-time System Real Time System Rotation Measurement Rotational Speed Profile Tracking Rotor Flux Amplitude Rotors Sensorless Induction Motor Drive Sensorless Machine Control Speed Error Speed Measurement State Estimation Stator Voltage-current Measurement Stators Torque Measurement Velocity Voltage Measurement
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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