Battery Protective Electric Vehicle Charging Management in Renewable Energy System

Abstract

The adoption of grid-connected electric vehicles (GEVs) brings a bright prospect for promoting renewable energy. An efficient vehicle-to-grid (V2G) scheduling scheme that can deal with renewable energy volatility and protect vehicle batteries from fast aging is indispensable to enable this benefit. This paper develops a novel V2G scheduling method for consuming local renewable energy in microgrids by using a mixed learning framework. It is the first attempt to integrate battery protective targets in GEVs charging management in renewable energy systems. Battery safeguard strategies are derived via an offline soft-run scheduling process, where V2G management is modeled as a constrained optimization problem based on estimated microgrid and GEVs states. Meanwhile, an online V2G regulator is built to facilitate the real-time scheduling of GEVs' charging. The extreme learning machine (ELM) algorithm is used to train the established online regulator by learning rules from soft-run strategies. The online charging coordination of GEVs is realized by the ELM regulator based on real-time sampled microgrid frequency. The effectiveness of the developed models is verified on a UK microgrid with actual energy generation and consumption data. This work can effectively enable V2G to promote local renewable energy with battery aging mitigated, thus economically benefiting EV owns and microgrid operators, and facilitating decarbonization at low costs.

Aging Mitigation for Battery Energy Storage System in Electric Vehicles

“…In this study, charging behaviors of 30 GEVs each with a 60 kWh battery pack, are simulated to provide peak-shaving service, and the peak-shaving reference value is set as 400 kW. The peak-shaving and battery anti-aging performance of the developed method (Case 4) is quantitively compared with conventional online scheduling method (Case 2) and off-line rain-flow anti-aging (ORA) method [53] (Case 3) in Fig. 7.…”

Wireless Chargers for Electric Vehicle: A Systematic Review on Converter Topologies, Environmental Assessment, and Review Policy

“…Even though the street WPT techniques would enhance the system's operational safety [74], a significant amount of research has been done [6,69,80] to investigate the EMF problems with human electromagnetic permissible levels. Exposure to magnetic and electric fields with a lower frequency is known to irritate the surface field effects, nervous system stimuli, and sometimes the formation of phosphines in the retina area [81].…”

“…This radiation can take the form of microwaves or lasers. This study focuses on the magnetically coupled WPT for any electric vehicle charging application and has made the subject of a significant amount of research [3][4][5][6][7][8]. In terms of its operational modes, a WPT can be of two categories: (1) static WPT, which involves charging the battery while the vehicle is parked, and (2) dynamic WPT, which involves the battery being charged while the vehicle is moving down a roadway that is enabled for WPT.…”

Two-Stage Co-Optimization for Utility-Social Systems With Social-Aware P2P Trading

“…MART city management leverages advanced information and communication technologies (ICTs) to ensure sustainable, efficient urban operations that are central to quality services to citizens and support their normal activities [1,2]. These technologies make the effective coordination of multiple heterogeneous utility systems viable and promise greater efficiency and reliability [3,4]. For instance, Lei et al [5] design a planning scheme for charging infrastructures, which considers the coupling relationships between power and traffic systems to support smart cities.…”