Optimal operation of micro integrated energy systems considering electrical and heat load classification and scheduling

Abstract

In this paper, we propose an optimal operation framework for energy hub based micro Integrated Energy Systems (micro-IES) considering multi-carrier load classification and scheduling. The electrical load is classified as shiftable load and important load, as well as the heat load is made up of curtailment load and rigid load. The objective function aims to minimum the total operation cost related to electricity, natural gas and heat, while shiftable electrical load and curtailable heat load scheduling model are added into the constraints of optimization formulation. A detailed case study with the consideration of three different scenarios validates the performance of presented optimal operation model. The application of shiftable electrical load and curtailable heat load leads to lower multi-carrier energy consumption cost and lower peak power and heat load demand for micro-IES.