Digital control of PWM inverter using ultra high speed network for feedback signals with communication disturbance observer based on rocket I/O protocol

An new network communication system for power electronics controller to transmit the feedback signal from the sensors using FPGA based hardware controller was proposed. Based on Rocket I/O network controller, customized Rocket I/O protocol was implemented to achieve high speed feedback communication between two FPGA controller. To compensate the network delay of the feedback signal, communication disturbance observer is combined to the digital control method of PWM inverter system.