A data processor to enhance robustness of networked control system for parallel-connected inverters

In this paper, a series of power-sharing strategy based on networked control for parallel-connected inverters is introduced. In order to enhance robustness of system, a novel data processor is proposed. By means of controlling control data flow, the different power-sharing methods are scheduled depending on communication situation and system operational state. Therefore, even in the case of module or communication failure, the system can work well. To describe the advantage of new data processor, an extended power-sharing strategy of networked control is described. The experimental results based on the fast networked control system demonstrate the validity of these schemes and show the superiority of new data processor.