Predictive current control of asynchronous machines by optimizing the switching moments
| Autor: | T.J. Vyncke, F. De Belie, P. Goedertier, Jan Melkebeek |
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| Rok vydání: | 2013 |
| Předmět: |
Engineering
Technology and Engineering business.industry Horizon switching-loss reduction MBPC Reduction (complexity) Model predictive control DESIGN FPGA implementation INVERTERS Control theory Inverter induction machines State (computer science) Torque ripple MOTOR business Indirect field-oriented control predictive control Machine control |
| Zdroj: | 2013 IEEE International symposium on Sensorless Control for Electrical Drives and Predictive Control of Electrical Drives and Power Electronics (SLED/PRECEDE) |
| DOI: | 10.1109/sled-precede.2013.6684484 |
| Popis: | In this paper a model-based predictive control (MBPC) scheme for the current control of induction machines is presented. The controller directly selects the optimal switch state of the inverter. The proposed scheme uses a longer prediction horizon and a limited amount of optimal switching instants to reduce the average switching frequency. The next iteration of the MBPC-scheme is performed at the established optimal switching instant, as such suppressing the receding horizon property for short time spans. The proposed method is compared to a more conventional MBPC-scheme with a very short prediction horizon. Both simulations and experiments clearly show a significant reduction in average switching frequency. However, with a reduction in switching frequency the torque ripple is increased. To correctly asses the properties of the different schemes, a key performance indicator is proposed that offers a fair and unbiased comparison in terms of switching frequency and torque ripple. |
| Databáze: | OpenAIRE |
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