Capacity Allocation and Operation Optimization of Integrated Energy Park System Coupled with Hydrogen Energy Storage

As a complex energy system with multi inputs and outputs, the design, planning and operation management of integrated energy system are current research difficulties. In allusion to the integrated energy park system with coupled hydrogen energy storage, a comprehensive evaluation index considering energy efficiency, reliability, environmental protection and economy was proposed. Under specified operation strategy, an optimization method combining particle swarm optimization (abbr. PSO) with maximum rectangle method (abbr. MRM) was utilized to perform system capacity allocation. To verify the reliability of capacity allocation results, taking a certain comprehensive energy park system in Xi’an for example, the cooling, heating and electrical loads in this park area within a whole year were taken as load demand, on the basis of traditional operation strategy of determining electricity by heat and determining heat by electricity a comprehensive operation strategy was proposed. The system capacity allocation for three operation strategies was researched, and the characteristics of their comprehensive operation strategies were analyzed. Computing results show that comparing with determining electricity by heat and determining heat by electricity, the comprehensive evaluation index of the proposed comprehensive operation strategy were improved by 1.66% and 0.13% respectively.