Generalized Inverse Optimal Power Flow Calculation of Electrothermal Coupled Multi-energy Flow System Contained Ground Source Heat Pump

Abstract

Regional energy Internet is the main trend of energy development in the future. Ground source heat pump (GSHP) is a new hot technology for building energy conservation and environmental protection, and is also an important form of energy supply in regional energy Internet system. In this paper, the electrothermal coupled regional integrated energy system with GSHP is taken as the research object. The detailed modeling and analysis of the GSHP operating in the thermal system are carried out from the operational mechanism. The steady-state model of the electrothermal coupled energy network is established. Based on the generalized inverse matrix theory, the multi-target optimal power flow model and algorithm for regional energy Internet including energy cost minimization and distribution system loss minimization are studied and verified in the coupling case of IEEE 14-node power system and 5-node thermal system simulating. The model and algorithm presented in this paper accurately reflect the operation status of regional integrated energy system, which can take into account multiple operational optimization objectives. The algorithm has good numerical stability and convergence, and the optimization process is a process of optimization of feasible solutions, and each step obtains a more optimal feasible solution of objective function value, which is suitable for real-time system optimization scheduling applications.