A novel energy management strategy to reduce gird dependency using electric vehicles storage in coordination with solar power

Article type: Research Article

Authors: Ramalingeswar, J.T.^{; *} | Subramanian, K.

Affiliations: School of Electrical Engineering, VIT University, Vellore, Tamil Nadu, India

Correspondence: [*] Corresponding author. J.T. Ramalingeswar, School of Electrical Engineering, VIT University, Vellore, Tamil Nadu, India. E-mail: [email protected].

Abstract: The effective coordination of solar photovoltaic (solar PV) with Electrical Vehicles (EV) can substantially improve the micro grid(MG) stability and economic benefits. This paper presents a novel Energy Management System (EMS) that synchronizes EV storage with Solar PV and load variability. Reducing grid dependency and energy cost of the MGs are the key objectives of the proposed EMS. A smart EV prioritization based control strategy is developed using fuzzy controller. Probabilistic approach is designed to estimate the EV usage expectancy in the near time zone that helps smart decision on choosing EVs. Minimizing battery degradation and maximizing EV storage exploitation are the key objectives of EV prioritization. On the other hand, Water Filling Algorithm (WFA) is used for Optimal Storage Distribution (OSD) in each zone of energy need for load flattening. The proposed EMS is implemented in a real time on-grid MG scenario and different case studies have been investigated to realize the impact of proposed EMS. A comprehensive cost analysis has been conducted and the efficacy of the proposed EMS is analysed.

Keywords: Solar PV, EV storage, WFA, load flattening, EV ranking

DOI: 10.3233/JIFS-210930

Journal: Journal of Intelligent & Fuzzy Systems, vol. 41, no. 1, pp. 2207-2223, 2021