Comparative performance analysis of drives for induction motors
Friedl, Andrew P.
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https://hdl.handle.net/2142/14654
Description
Title
Comparative performance analysis of drives for induction motors
Author(s)
Friedl, Andrew P.
Issue Date
2010-01-06T16:20:30Z
Director of Research (if dissertation) or Advisor (if thesis)
Krein, Philip T.
Doctoral Committee Chair(s)
Krein, Philip T.
Department of Study
Electrical & Computer Eng
Discipline
Electrical & Computer Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Induction Motor Control
direct torque control
feedback linearization
indirect field-oriented control
vectorized volts-per-hertz
parameter sensitivity analysis
motor controller comparison
Abstract
The asynchronous polyphase induction motor has been the motor of choice in industrial settings for about the past half century because power electronics can be used to control its output behavior. Before that, the dc motor was widely used because of its easy speed and torque controllability. The two main reasons why this might be are its ruggedness and low cost. The induction motor is a rugged machine because it is brushless and has fewer internal parts that need maintenance or replacement. This makes it low cost in comparison to other motors, such as the dc motor. Because of these facts, the induction motor and drive system have been gaining market share in industry and even in alternative applications such as hybrid electric vehicles and electric vehicles.
The subject of this thesis is to ascertain various control algorithms’ advantages and disadvantages and give recommendations for their use under certain conditions and in distinct applications. Four drives will be compared as fairly as possible by comparing their parameter sensitivities, dynamic responses, and steady-state errors. Different switching techniques are used to show that the motor drive is separate from the switching scheme; changing the switching scheme produces entirely different responses for each motor drive.
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