Publication

Feasible profile generation for ancillary services using electric vehicle batteries

2027

Abstract

Electric vehicle (EV) batteries retain substantial usable capacity after their first life, enabling reuse in power grid’s stationary applications such as frequency control, self-consumption, and energy arbitrage. However, battery cycling profiles in power system applications differ significantly from standard driving cycles, requiring tailored testing methods to assess second-life degradation. This paper presents a two-stage framework for generating realistic second-life cycling profiles that replicate battery energy storage system (BESS) operation. The first stage optimizes power and state of energy (SOE) profiles, while the second stage ensures compliance with voltage and current constraints using an equivalent circuit model (ECM). The resulting profile maximizes the energy throughput while guaranteeing safe and feasible battery operation.

Official source

https://infoscience.epfl.ch/entities/publication/20eb4afc-5f91-463d-938b-c864f33cafca

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2027

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/20eb4afc-5f91-463d-938b-c864f33cafca

About this result

Related concepts (32)

Electric vehicle battery

An electric vehicle battery (EVB, also known as a traction battery) is a rechargeable battery used to power the electric motors of a battery electric vehicle (BEV) or hybrid electric vehicle (HEV). Electric vehicle batteries differ from starting, lighting, and ignition (SLI) batteries, as they are typically lithium-ion batteries that are designed for high power-to-weight ratio and energy density. Smaller, lighter batteries are desirable because they reduce the weight of the vehicle and therefore improve its performance.

Battery electric vehicle

A battery electric vehicle (BEV), pure electric vehicle, only-electric vehicle, fully electric vehicle or all-electric vehicle is a type of electric vehicle (EV) that exclusively uses chemical energy stored in rechargeable battery packs, with no secondary source of propulsion (a hydrogen fuel cell, internal combustion engine, etc.). BEVs use electric motors and motor controllers instead of internal combustion engines (ICEs) for propulsion. They derive all power from battery packs and thus have no internal combustion engine, fuel cell, or fuel tank.

Electric vehicle

An electric vehicle (EV) is a vehicle that uses one or more electric motors for propulsion. It can be powered by a collector system, with electricity from extravehicular sources, or it can be powered autonomously by a battery (sometimes charged by solar panels, or by converting fuel to electricity using fuel cells or a generator). EVs include, but are not limited to, road and rail vehicles, surface and underwater vessels, electric aircraft, and electric spacecraft.

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Feasible profile generation for ancillary services using electric vehicle batteries

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