Integrated Demand Response Mechanism for Industrial Energy System Based on Multi-Energy Interaction

Abstract

With the development of energy integration technologies, the conventional scope of demand response has been extended to the integrated demand response (IDR), which imparts the flexibility to consumers' energy demand. This paper explores interaction patterns for multi-energy demand management and proposes an IDR mechanism for the industrial integrated energy system. The mechanism exploits three interaction patterns to promote the interaction between the demand and supply of multiple energy systems. The incentive payment is provided not only for curtailing interruptible electric load, but also for adjusting flexible heating and cooling loads. The coupling characteristics of industrial consumers' multi-energy demands are then modeled to reflect the mutual influence between the consumption behaviors for different energy sources. Besides, based on the coupling of CCHP (Combined Cooling, Heating, and Power) energy outputs, the demand-supply interaction model is also proposed, which could change the electric generation by affecting consumers' heating and cooling demands. The optimization model of the IDR is then established with the objective of minimizing the total dispatch cost. The simulation results show that compared with conventional DR programs, the total dispatch cost and consumers' energy procurement cost are both reduced. The CCHP could also benefit from this mechanism. Furthermore, the impact of the coupling characteristics and the incentive price on the dispatch cost is also analyzed.

Keywords

• Demand response
• integrated energy system
• optimal dispatch
• multi-energy coordination