Research on Thermoelectric Power Flow of Distributed Integrated Energy System Based on Model of Heat Network and Power System

摘要

Distributed integrated energy system with combined cooling heating and power (CCHP) develops rapidly, because of its high energy efficiency, economy, environmental protection and safety. Meanwhile, steady-state power flow calculation is the basis of integrated energy system design planning and optimal scheduling. Therefore, this paper presents a calculation method of power flow considering thermoelectric coupling. Based on the coupled steady-state model of equipment and the hydraulic and thermal models of heat supply network, a heat supply network solving algorithm is proposed. Compared with the traditional nonlinear solving method, this method simplifies the solving process of thermoelectric power flow. What’s more, an improved ieee33-node and 14-node heating network system is used for simulation calculation. The results show that the actual model of power loss of hot water when it flows at the side of pipe network.