Optimal Operation of a Village Energy System Considering Renewable Resources and Battery Energy Storage

Abstract

This paper couples a village energy system with a wide-area energy network based on the energy hub concept. The village is modeled as an isolated energy hub that can interact with electrical and natural gas sub-networks through the market. The energy demand of the village is supplied by renewable resources such as a photovoltaic (PV) system, as well as other generation technologies including Combined Heat and Power (CHP). The CHP unit is modeled considering its part-load performance. Additionally, battery energy storage is incorporated alongside the PV system to mitigate the intermittent generation of PV and to be utilized during periods of high market prices. The optimal operation problem is solved to maximize the profit from the perspective of the energy hub operator. The optimization is performed using the Teaching-Learning-Based Optimization (TLBO) method. Results show that appropriate interaction between the village energy system and upstream sub-networks is cost-effective for the system operator to increase profit, achieving a maximum benefit of 3.6456$ for the village energy system.