In view of such problem as outstanding of loop current and difficult suppression of intermittent power supply grid-connected multi-inverter in parallel operation

in this paper

the hybrid automatic machine theory to suppress the parallel power supply of the intermittent power supply grid-connected multi-inverter is proposed. Firstly

the hybrid characteristics and the principle of circulating current generation of parallel power supply grid-connected multi-inverters in parallel are analyzed in detail and the mathematical relationship between inverter output voltage and circulating current size is obtained. Then the in-depth study of the principle and method of parallel power supply multi-inverter parallel operation loop control using hybrid automatic machine theory modeling and control is carried out. According to the relationship between the working state of the switching device and the output voltage of the inverter

multiple inverters are connected in parallel. Finally

the simulation is verified by the matlab simulation platform. It is shown by the simulation result that the correctness and feasibility of the loop controller and the corresponding loop suppression method designed in this paper can achieve better circulation control effect by using the hybrid automata model

which can effectively suppress the circulation between multi-parallel inverters.