Heat-Electricity Coupled Peak Load Shifting for Multi-Energy Industrial Parks: A Stackelberg Game Approach

This paper establishes an energy management framework for a multi-energy industrial park (IP) based on Stackelberg game theory, where the leaders and the followers are combined heat-and-power (CHP) unit owners and a group of industrial users (IUs), respectively. The interactions between the leaders and the followers are the two-way electricity and the one-way heat trading. The bi-directional energy demands conversion is considered to realize the peak load shifting. The slow dynamics of district heating system is reflected by introducing the thermal delay time constant (TDTC), resulting in a “synchronous-production-asynchronous-delivery” scheme for electricity and heat. A relatively computational cheap decentralized solution procedure is devised to refine the Stackelberg equilibrium, and the existence proof of the equilibrium under mild conditions is provided. The effectiveness of the proposed methods are verified by simulation results.