Industrial integrated energy system optimization with considering thermal power transferring process

Abstract

In the regional integrated energy system, multiple resources on the demand side and supply side should be considered in integrated planning. In particular, how to realize measuring heat energy grade as well as considering thermal energy transferring medium characteristics in the integrated energy system optimization operation and resource allocation is a urgent research area to explore. In this paper, a typical industrial park integrated energy system considering thermal energy transferring process is established. In the beginning, multi-energy flows complementary characteristics of the industrial park have been introduced, which could improve energy usage efficiency by energy conversion, energy storage and energy substitution. Then the models of storage battery, micro-turbine and other resources have been established. In addition, the model of heat energy pipe network has been built considering thermal energy unidirectional transmission and various heat grade. Based on the previous models, the objective function of industrial park economic operation. Finally, the simulation results show that the proposed multi-energy flows model could satisfy the economical operation as well as energy supply balance while obeying energy conservation law and transferring process limit.