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DSP Implementation of Sensorless Self-configuring controllers for...
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| Author(s) |
A.F. Stronach; P. Vas |
| Abstract |
This paper describes the development and DSP implementation of fully sensorless, self-configuring
controllers in an electromechanical drive incorporating a separately excited dc motor. The RLSestimator-
based plant identification scheme is outlined and the controller structure and selfconfiguring
design procedure employed for the feedback controllers are described. The development
of recursive ANN-based rotor speed and armature and field current estimators is discussed. These
estimators use only DSP-calculated values of armature and field voltage together with previous values
of estimated speed and armature and field current to provide the speed and current estimates. This
arrangement enables implementation of fully sensorless speed control of the drive incorporating both
armature current limiting and field weakening. A further important advantage of the self-configuring
controller strategy is that the controllers can be implemented from an initially open loop configuration
thus eliminating the need for any a priori controller design. The simulated and experimental responses
obtained show that excellent performance can be obtained using the proposed controller scheme. The
DSP implementation requirements of the controllers and estimators are highlighted. |
| Download |
| Filename: | EPE1999 - PP00272 - Stronach.pdf |
| Filesize: | 720.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-23 by System |
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