The Control Strategy for Isolated Photovoltaic Micro-grid Based on Consensus Algorithm

The grid-connected inverter control strategy for the distributed photovoltaic generation system in isolated mirco-grid always applies the droop control, which results in the voltage deviation and frequency deviation. To improve the power quality of isolated micro-grid, a novel control strategy for the grid inverter is proposed. Firstly, the distributed photovoltaic generation system is modeled via the input-output feedback linearization. Then, the secondary control strategy for the distributed generation system is proposed, which is based on the consensus algorithm. Finally, a simulated model is built in Matlab/simulink, and the results show that the proposed control strategy can control the voltage and frequency without error.