Incorporating Ageing parameters into Optimal Energy Management of Distribution Connected Energy Storage

Abstract

This paper presents an optimal management system for a Battery Energy Storage System (BESS) providing demand peak reduction to its local electricity distribution network. This optimal energy management system (EMS) is based on a Material properties Model (MPM) of the BESS, enabling the EMS to take advantage of continuously updated information describing the BESS’s parameters. The EMS schedules the charging/discharging of the BESS in such a way that it minimizes the battery degradation and the operational cost, and maximizes the BESS's efficiency. The EMS is tested using real-world data collected from the distribution network in Bedfordshire, England. The EMS uses information about local Distribution Use of System (DUoS) charges when creating the operational schedules for the BESS; the impact of these charges, and their variation in different regions, on the operation and profitability of the system are investigated.