Volume 3: Innovative Solutions for Energy Transitions: Part II

Energy Hub Economic Dispatch Containing Building Virtual Storage Under the Demand Response Mechanism GE Shaoyun, LIU Jingyi, LIU Hong, CAO Yuchen, ZHAO Chenxiao

Abstract

A dispatch method with synergy and interaction between integrated energy hub and users was put forward aimed at the problems of failure to consider the thermal storage characteristics of building envelopes and demand response subsidy mechanisms for users during the operation and dispatch of integrated energy hub. First of all, a building virtual storage model was established with the indoor air and building envelope as the main part of heat transfer through comprehensive consideration of influences of indoor and outdoor disturbances on thermal process, and a mathematical model of building virtual storage with equivalent storage and discharge power was put forward; secondly, a typical equipment composition structure of integrated energy hub with supply of cooling, heating and power systems and a multi-agent interactive transaction relationship among external power companies, integrated energy hub and users were established, and a stimulating demand response mechanism based on user subsidy was put forward; thirdly, an optimized economic dispatch model of integrated energy hub was established with the maximum earnings of power station as the target, containing external power purchase expenses, incomes through selling power to users, and subsidies and with the flexible comfort level of users as constraints, and the CPLEX solver was adopted to solve the problems; finally, the practicability and effectiveness of the expressed model and method was verified through examples.

Keywords building virtual energy storage, demand response, integrated energy hub, optimal dispatch, building envelope