Optimization of a Mobile Energy Storage Network

Luiz Eduardo Cotta Monteiro,Rafael Saadi Dantas Teixeira,Hugo Miguel Varela Repolho,Rodrigo Santos Vieira,Rodrigo Flora Calili,Daniel Ramos Louzada

doi:10.3390/en15010186

Luiz Eduardo Cotta Monteiro, Rafael Saadi Dantas Teixeira + Show 4 more

Open Access

https://doi.org/10.3390/en15010186

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Journal: Energies	Publication Date: Dec 28, 2021
Citations: 2	License type: CC BY 4.0

Affiliation: Pontifical Catholic University of Rio de Janeiro

Abstract

This paper introduces the mobile battery network for electronic devices through powerbanks in a city, and proposes an optimization model to find the optimum site and set-up of the network considering costumers demand, logistics components, the batteries degradation, and terminal’s charger regime. To this end, a series of degradation tests were carried out on lithium-ion batteries, in four different charger regimes, in which the battery voltage amplitude and the charging electric current were varied. The results of these tests were incorporated into the optimization model as the depreciation rate and charge time over battery life. The mathematical modeling innovates by including new components designed specifically for this new problem: battery availability according to charging time; different types of customer service; objective function modeling that includes the logistical costs of battery relocation, terminal maintenance, and battery depreciation. The results indicate that the network performance using batteries in the fastest charging configuration tends to have a positive impact on their efficiency and profitability. The model can be used as a reference for other applications that require recharge points that enable the use of mobile batteries, such as electric scooters, electric bicycles, and drones, among others.

Highlights

The growth of Information and Communication Technologies has caused profound changes in the city environments and made possible the emergence of new business models
Laboratory tests with lithium-ion batteries similar to those used in the network were carried out in four different voltage and electric current configurations to measure the degradation rate and the performance of the batteries in terms of charge and discharge time
Laboratory tests with lithium-ion batteries similar to those used in the network were carried out in four different voltage and electric current configurations, measuring the degradation rate and the performance of the batteries in terms of charge and discharge cycles

Summary

Introduction

The growth of Information and Communication Technologies has caused profound changes in the city environments and made possible the emergence of new business models. A relevant characteristic that can be identified in some of these models concern the concept of Product as a Service (PaaS), in which a client, instead of buying (and own a personal product), purchases the service of a company that offers access to a physical product or a specific service [1]. Following this concept, a new business model is being developed to promote access to a network of battery recharger terminals distributed throughout the city of Rio de Janeiro. The management of this type of network presents some challenges related to the optimization of the terminal network and battery performance, reduction of costs, and service-level improvement

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