Sliding-Mode Control for Linear Permanent-Magnet Motor Position Tracking
| Authors: | Tapia-Otaegui Gerardo, University of the Basque Country, Spain
Tapia-Otaegui Arantxa, University of the Basque Country, Spain |
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| Topic: | 4.2 Mechatronic Systems |
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| Session: | Mechatronic Control of Motors |
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| Keywords: | Machining, linear motors, observers, permanent magnet motors, positioning systems, servo systems, sliding-mode control, synchronous machines. |
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Abstract
Based on Utkin's research work regarding speed control of rotary motors, a position tracking algorithm for linear permanent magnet synchronous motors (LPMSM) is designed making use of multi-variable sliding-mode control and asymptotic observers. It is applicable to LPMSM's with either interior or surface-mounted magnets, no matter whether the armature is stationary or movable. Furthermore, the control signals yielded are able to drive the power transistors of the inverter feeding the motor directly, hence avoiding the employment of techniques such as PWM or SVM. Performance of the control structure proposed is evaluated on the simulation model of a commercially available LPMSM.
