Design and implementation of a multiprocessor-based digital PWM inverter controller

This paper presents the design and implementation of a multiprocessor-based fully-digitalized 3-phase PWM inverter controller with multimode digital sinusoidal PWM technique. The flexibility of the RAM-based digital PWM inverter controller is suitable for design, simulation, experimentation, and performance evaluation purposes. The operational principle of the digital sinusoidal PWM method based on the fluxlinkage vector locus has been explained. A prototype of the digital PWM controller has been constructed with given experimental results.