The integrated operation of multiple energy carrier used to enhance the reliability of the integrated energy system

摘要

The coordination of multiple energy can be realized in an integrated energy system. Thus higher economic performance and energy supply reliability can be obtained by multiple energy optimization. In this paper, an optimization of control strategy considering economic performance and response performance is inducted. Firstly, an integrated energy system including multiple energy conversion devices and response time of cold/heat related devices are introduced. Then the constraints are inducted into form of energy efficiency matrix in which energy efficiency is used to describe the efficiency of energy conversion and storage. After this, two forms of objectives dedicate to the performance of economic performance and response performance are inducted. Combined by the constraints and objectives, a linear programing method is used to coordinate multiple energy in an integrated energy system. The results revealed that the economic optimal optimization and responsive optimal optimization are conflicted. To obtain the comprehensive optimal performance, the first step should be given to response time optimization and then exerting economic optimization.