Low carbon operation of integrated energy systems considering electric and thermal flexible loads

Abstract

Integrated energy systems have the importance of reducing environmental pollution and improving energy efficiency levels. In order to give full play to the utility of flexible load in the integrated energy system, a low-carbon operation method of integrated energy system considering electro-thermal flexible load is proposed. Firstly, we analyze the operation mechanism of electro-thermal flexible load and establish the model of electro-thermal curtailable load and transferable load; secondly, we add the flexible load into the integrated energy system, consider the cost of external energy purchase, operation and maintenance cost and carbon penalty cost, and establish the low-carbon dispatch model of integrated energy system with flexible load; finally, we perform simulation in IEEE39 node to verify. The results show that compared with the traditional integrated energy system, the proposed integrated energy system with flexible load can effectively reduce the operation cost and carbon emission, and has higher economy and environmental protection.