A source voltage-clamped resonant link inverter for a PMSM using apredictive current control technique |
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Authors: | In-Hwan Oh Young-Seok Jung Myung-Joong Youn |
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Affiliation: | Fairchild Korea Semicond. Ltd., Puchon City; |
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Abstract: | A simple source voltage-clamped resonant link (SVCRL) inverter is proposed to clamp the DC-link voltage to the input source voltage and reduce the current rating of a resonant inductor. The current control of a permanent magnet synchronous motor (PMSM) employing a predictive current control technique (PCCT) for the SVCRL, inverter is also investigated to overcome the disadvantage of the current-regulated delta modulation (CRDM) control technique. By employing the PCCT based on the discrete model of a PMSM and estimation of back electromotive force (EMF), the minimized current ripple with a small number of switchings can be obtained. Finally, the comparative computer simulation and experimental results are given to show the usefulness of the proposed technique |
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