Research on Hybrid Simultaneous Simulation Method of Multi-energy Coupling System under Multiple time Scale

With the continuous development of society, the traditional single energy source can no longer meet the needs of people's daily life, which makes the energy Internet of coupling and interaction of various energy forms emerge. This paper firstly analyzes the gas-electricity and heat-electricity coupling links and interface models based on the electricity-gas-heat coupled energy system structure framework, and analyzes the time-scale characteristics of the three types of flow forms of energy. On this basis, the power flow calculation process of the electricity-pneumatic-thermal coupling system is proposed and the simulation example is analyzed. The simulation results show that the electricity-gas-heat interconnection system can change the peak-to-valley ratio of various loads, optimize the allocation of power generation resources, reduce the amount of renewable energy discarded, and reduce operating costs. It can provide a reference for the optimized operation of multi-region and multi-energy systems.