Improved signal injection based sensorless technique for PM brushless AC drives

Li, Y. and Zhu, Z .Q. and Bingham, Chris and Howe, D. (2007) Improved signal injection based sensorless technique for PM brushless AC drives. In: 2007 IEEE International Conference on Networking, Sensing and Control, 15-17 April 2007, London, UK.

Full content URL: http://dx.doi.org/10.1109/ICNSC.2007.372871

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Improved signal injection based sensorless technique for PM Brushless AC Drives
The accuracy of rotor position estimation in the conventional signal injection based sensorless control of permanent magnet brushless AC drives depends on the load current. This paper proposes an improved method, which significantly reduces the estimation error by accounting for the cross-coupling effect between the d-and q-axes. The conventional and proposed methods are described and their performance is compared by both simulation and experiment.
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Abstract

The accuracy of rotor position estimation in the conventional signal injection based sensorless control of permanent magnet brushless AC drives depends on the load current. This paper proposes an improved method, which significantly reduces the estimation error by accounting for the cross-coupling effect between the d-and q-axes. The conventional and proposed methods are described and their performance is compared by both simulation and experiment.

Additional Information:The accuracy of rotor position estimation in the conventional signal injection based sensorless control of permanent magnet brushless AC drives depends on the load current. This paper proposes an improved method, which significantly reduces the estimation error by accounting for the cross-coupling effect between the d-and q-axes. The conventional and proposed methods are described and their performance is compared by both simulation and experiment.
Keywords:Permanent Magnet AC Motor, sensorless control
Subjects:H Engineering > H600 Electronic and Electrical Engineering
Divisions:College of Science > School of Engineering
ID Code:2462
Deposited On:16 May 2010 15:05

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