Research on the Safety of New Energy Vehicle Charging Operation Based on Dissipative Structure Theory

In order to improve the safety and stability of new energy vehicle charging operation, the risk factors in the process of new energy vehicle charging operation were analyzed from the perspective of intrinsic safety. Based on dissipation structure theory, entropy theory and generalized energy theory, we analyzed the dissipation structure characteristics of the process, clarify the dissipation mechanism and entropy flow process, and quantify the energy evolution process. The evaluation model of new energy vehicle charging operation based on safety entropy was constructed, and the preliminary indexes were determined by combining the track crossing theory and “4M theory”. The final indexes were determined by expert scoring. The results show that the charging process of new energy vehicles meets the characteristics of openness, rise and fall leading to order, nonlinear interaction and far from equilibrium. Entropy and energy can be used to describe the reliability and stability of the process. The evaluation model is verified by example to meet the requirements of reasonableness and reliability.