Dynamic model tracking design for low inertia, high speed permanent magnet ac motors

Stewart, Paul and Kadirkamanathan, Visakan (2004) Dynamic model tracking design for low inertia, high speed permanent magnet ac motors. ISA Transactions, 43 (1). pp. 111-122. ISSN 0019-0578

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Dynamic model tracking design for low inertia, high speed permanent magnet ac motors
Permanent magnet ac (PMAC) motors have existed in various configurations for many years. The advent of rare- earth magnets and their associated highly elevated levels of magnetic flux makes the permanent magnet motor attrac- tive for many high performance applications from computer disk drives to all electric racing cars. The use of batteries as a prime storage element carries a cost penalty in terms of the unladen weight of the vehicle. Minimizing this cost function requires the minimum electric motor size and weight to be specified, while still retaining acceptable levels of output torque. This tradeoff can be achieved by applying a technique known as flux weakening which will be inves- tigated in this paper. The technique allows the speed range of a PMAC motor to be greatly increased, giving a constant power range of more than 4:1. A dynamic model reference controller is presented which has advantages in ease of implementation, and is particularly suited to dynamic low inertia applications such as clutchless gear changing in high performance electric vehicles. The benefits of this approach are to maximize the torque speed envelope of the motor, particularly advantageous when considering low inertia operation. The controller is examined experimentally, confirming the predicted performance.
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Abstract

Permanent magnet ac

Item Type:Article
Additional Information:Permanent magnet ac
Keywords:Permanent Magnet AC Motor, Model Reference control, Feedback Linearisation
Subjects:H Engineering > H620 Electrical Engineering
H Engineering > H660 Control Systems
H Engineering > H360 Electromechanical Engineering
Divisions:College of Science > School of Engineering
ID Code:2189
Deposited By:INVALID USER
Deposited On:01 Mar 2010 22:56
Last Modified:13 Mar 2013 08:34

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