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The Control of Interior Permanent Magnet Synchronous Motor Using a Non-Linear Minimum Order Observer
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| Author(s) |
V. Comnac; M. McCormick; A. Aounis; M. Cernat; R-M. Cernat |
| Abstract |
The application of vector control techniques in a.c. drives demands accurate position and speed feedback
information for the current control and servo-control loops. The paper describes a full mechanical
sensorless speed digital control system for interior permanent magnet synchronous machines (IPMSM).
A minimum order state observer (Gopinath) is used for the mechanical state estimation of the motor. The
observer was developed based on non-linear model of the synchronous motor, that employs a d-q rotating
reference frame attached to the rotor. As opposed to the complete order state observer (Luenberger) which
is often cited in literature, the minimum order state observer (Gopinath) is easier to design in the stage of
pole placement. The control system includes a rotor frame vector current controller with feedforward
decoupling circuit and an integral+integral proportional (I + PI) speed controller. |
| Download |
| Filename: | EPE1999 - PP00890 - COMNAC.pdf |
| Filesize: | 123.9 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-30 by System |
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