Coordinated Operation of Regional Integrated Energy Systems Based on Electrical Thermal Coupling Devices

In the regional integrated energy system, the conversion among multiple energy forms such as electricity, gas, and heat seriously affects the economic operation of the system. A regional coordinated operation optimization model is established to enhance coordination, economic efficiency, and system stability. First, modeling of various coupling devices and energy supply networks in the system is conducted, along with the determination of their constraints. Second, minimizing the system cost is set as the primary objective while taking into account the mutual benefits of the system's energy. Finally, a case study is conducted to verify the feasibility of the model. The simulation results show that the stability of the system scheduling is improved, the accommodation rate of renewable energy is increased, and the system cost is reduced.