Method for modeling single-phase bridge DC/AC convertor circuit based on hybrid Petri machine

The invention discloses a method for modeling a single-phase bridge DC/AC convertor circuit based on a hybrid Petri machine. The method comprises the following steps: 1, determining the number of working states; 2, determining conversion conditions for converting working states; 3 determining state variables, input variables, output variables, an input matrix, a state matrix and an output matrix according to system parameters; and 4, modeling a mathematical model. The invention has the following advantages: the model modeled for the single-phase bridge DC/AC convertor circuit by utilizing the hybrid Petri machine is quite precise, and is favorable for accurately analyzing the stability and control performance of a system, especially for the complicated character of a converter system caused by switching; and the single-phase bridge DC/AC convertor circuit has the advantages of simple structure, small size, high conversion efficiency and the like.