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A networked control method for multi-inverter parallel system is proposed in this paper. Current-sharing control strategy and communication design are described. TOD (Try-Once-Discarded) scheduling mode is used to realize the real-time and accurate transmission, and the Joint scheduling algorithm of TOD is implemented to predict the networked control system performance with network time-delay. The time-delay bound to keep system stable is quantified and buffer area is used to adjust the time-delay value. Mathematical model is built with theory of both wireless multi-inverter parallel and TOD. The maximum induced time-delay represented by MALI (Maximum Allowable Transfer Interval) is estimated. The experimental results demonstrate the validity of using joint scheduling analysis method for inverter parallel operation system.
Zhang et al. (Mon,) studied this question.