Abstract
GaN devices used to drive a three-phase inverter drive motor can greatly improve the switching frequency and increase the power density. However, the traditional microcontroller unit (MCU) controller cannot achieve high switching frequency single-cycle control. This paper describes the use of GaN devices in the design of a three-phase motor drive system to drive a permanent magnet synchronous motor and vector control algorithm, that is completely implemented in a field programmable gate array. The system achieves 200-kHz switching frequency single-cycle precise control, as verified by the experimental results.
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