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PMSM fed by 3-level NPC sinusoidal inverter with discrete state feedback controller
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| Author(s) |
Tomasz TARCZEWSKI, Lech GRZESIAK |
| Abstract |
In this paper new discrete non-stationary linear-quadratic speed regulator for PMSM fed by 3-levelNPC sinusoidal inverter is presented. Controlled sinus wave inverter with an output LC filter was usedin order to reduce electromagnetic torque ripple of the motor. The novelty of the proposed controlsystem consists in one state feedback controller using in order to control the angular velocity of themotor as well as to provide true sine wave of the motor voltages. It was found that some gains of thedesigned discrete controller are non-stationary and depends on the angular velocity of the motor. Useof non-stationary controller causes, that linearization and decoupling process of the motor with LCfilter is not needed. Simulation test results of the designed control system are compared with resultsobtained for PMSM fed by classical 2-level inverter. Proposed control system can be used in industrialapplications where torque ripple minimization is needed instead high dynamic performance. |
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| Filename: | 0428-epe2013-full-10233432.pdf |
| Filesize: | 1.816 MB |
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| Type |
Members Only |
| Date |
Last modified 2014-02-09 by System |
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