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Indirect Adaptive Feedforward Control in Compensating Cogging Torque and Current Measurement Inaccuracies for Permanent Magnet Motors

Yeo, Kheng C., Heins, Greg and De Boer, Friso G. (2009). Indirect Adaptive Feedforward Control in Compensating Cogging Torque and Current Measurement Inaccuracies for Permanent Magnet Motors. In: Seventh IEEE International Conference on Control and Automation, Christchurch, New Zealand, 9 - 11 December 2009.

Document type: Conference Paper

IRMA ID 78223132xPUB6
Author Yeo, Kheng C.
Heins, Greg
De Boer, Friso G.
Title Indirect Adaptive Feedforward Control in Compensating Cogging Torque and Current Measurement Inaccuracies for Permanent Magnet Motors
Conference Name Seventh IEEE International Conference on Control and Automation
Conference Location Christchurch, New Zealand
Conference Dates 9 - 11 December 2009
Convener IEEE Control Systems Chapter, Singapore and IEEE New Zealand South Section
Conference Publication Title ICCA 2009 - International Conference on Control and Automation
Publisher IEEE
Publication Year 2009
ISBN 978-1-4244-4707-7   (check CDU catalogue open catalogue search in new window)
Start Page 2136
End Page 2142
Total Pages 8
HERDC Category E1 - Conference Publication (DEST)
Abstract Theoretically, if the inverse transfer function of the plant is known, feedforward control can achieve zero error between the reference and the output. The main aim of this paper is to design a simple feedforward model and to compensate for the errors brought about by a change in the cogging torque and current measurement inaccuracies. The reference position, speed and acceleration have been designed so that they can be used as inputs to the feedforward model. The feedforward model is a stable form of the inverse transfer function of the motor dynamics of a PM motor. MRAS technique has been used to compensate for changes to the cogging torque and current measurement inaccuracies. A successful indirect adaptive feedforward control has been designed for three different shapes of the back EMF (sinusoidal, trapezoidal and a mix of the first two shape using real motor back EMF) and the control scheme is validated through hardware experimentation.
 
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Created: Fri, 23 Apr 2010, 02:53:20 CST