tailieunhanh - Design and Implementation of a Three-Phase Induction Motor Control Scheme

The use of a combustion engine to motivate a car has been questioned in recent times due to the increasing concern of warming. As a result of this, the concept of driving a car with an electric engine has become of particular interest. Dr. Geoff Walker and his PhD students are working on the creation of the Universitys own electric car. This thesis project is focused on deriving a control scheme to drive an induction machine that could be applied to the electric car. Induction machines are universally used in industry because of their robustness, reliability, low price and high efficiency (up to 80%) | Design and Implementation of a Three-Phase Induction Motor Control Scheme By Gareth Stephen Roberts Department of Information Technology and Electrical Engineering the University of Queensland Submitted for the degree of Bachelor of Electrical Engineering Honours . October 2001 2001 Thesis Project 1 Gareth S Roberts 34 Tolaga Street Westlake QLD 4074 October 17 2001 The Head of School School of Information Technology and Electrical Engineering University of Queensland St. Lucia Qld 4072 Dear Professor Simon Kaplan In accordance with the requirements of the degree of Bachelor of Engineering Honours in the division of Electrical Engineering I present the following thesis entitled Design and Implementation of a Three-Phase Induction Motor Control Scheme . This thesis was carried out under the supervision of Dr. Geoff Walker. This thesis project has not been submitted at any other University. I declare that this work has not been published or written by any other person except where reference is made by text. Yours sincerely Gareth Roberts. 2001 Thesis Project A2 Gareth S Roberts Abstract The use of a combustion engine to motivate a car has been questioned in recent times due to the increasing concern of global warming . As a result of this the concept of driving a car with an electric engine has become of particular interest. Dr. Geoff Walker and his PhD students are working on the creation of the University s own electric car. This thesis project is focused on deriving a control scheme to drive an induction machine that could be applied to the electric car. Induction machines are universally used in industry because of their robustness reliability low price and high efficiency up to 80 . However until recent times it has been hard to control the torque of the induction motor. By using the TMS320F243 DSP controller which is embedded in an existing hardware design and a control scheme called Field Orientated Control we can control the torque of an induction machine .

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