Joint Optimization of Autonomous Electric Vehicle Fleet Operations and Charging Station Siting

Fuente: arXiv
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Main Authors: Luke, Justin, Salazar, Mauro, Rajagopal, Ram, Pavone, Marco
Format: Preprint
Published: 2021
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author Luke, Justin
Salazar, Mauro
Rajagopal, Ram
Pavone, Marco
author_facet Luke, Justin
Salazar, Mauro
Rajagopal, Ram
Pavone, Marco
contents Charging infrastructure is the coupling link between power and transportation networks, thus determining charging station siting is necessary for planning of power and transportation systems. While previous works have either optimized for charging station siting given historic travel behavior, or optimized fleet routing and charging given an assumed placement of the stations, this paper introduces a linear program that optimizes for station siting and macroscopic fleet operations in a joint fashion. Given an electricity retail rate and a set of travel demand requests, the optimization minimizes total cost for an autonomous EV fleet comprising of travel costs, station procurement costs, fleet procurement costs, and electricity costs, including demand charges. Specifically, the optimization returns the number of charging plugs for each charging rate (e.g., Level 2, DC fast charging) at each candidate location, as well as the optimal routing and charging of the fleet. From a case-study of an electric vehicle fleet operating in San Francisco, our results show that, albeit with range limitations, small EVs with low procurement costs and high energy efficiencies are the most cost-effective in terms of total ownership costs. Furthermore, the optimal siting of charging stations is more spatially distributed than the current siting of stations, consisting mainly of high-power Level 2 AC stations (16.8 kW) with a small share of DC fast charging stations and no standard 7.7kW Level 2 stations. Optimal siting reduces the total costs, empty vehicle travel, and peak charging load by up to 10%.
format Preprint
id arxiv_https___arxiv_org_abs_2107_00165
institution arXiv
publishDate 2021
record_format arxiv
spellingShingle Joint Optimization of Autonomous Electric Vehicle Fleet Operations and Charging Station Siting
Luke, Justin
Salazar, Mauro
Rajagopal, Ram
Pavone, Marco
Systems and Control
Multiagent Systems
Robotics
Charging infrastructure is the coupling link between power and transportation networks, thus determining charging station siting is necessary for planning of power and transportation systems. While previous works have either optimized for charging station siting given historic travel behavior, or optimized fleet routing and charging given an assumed placement of the stations, this paper introduces a linear program that optimizes for station siting and macroscopic fleet operations in a joint fashion. Given an electricity retail rate and a set of travel demand requests, the optimization minimizes total cost for an autonomous EV fleet comprising of travel costs, station procurement costs, fleet procurement costs, and electricity costs, including demand charges. Specifically, the optimization returns the number of charging plugs for each charging rate (e.g., Level 2, DC fast charging) at each candidate location, as well as the optimal routing and charging of the fleet. From a case-study of an electric vehicle fleet operating in San Francisco, our results show that, albeit with range limitations, small EVs with low procurement costs and high energy efficiencies are the most cost-effective in terms of total ownership costs. Furthermore, the optimal siting of charging stations is more spatially distributed than the current siting of stations, consisting mainly of high-power Level 2 AC stations (16.8 kW) with a small share of DC fast charging stations and no standard 7.7kW Level 2 stations. Optimal siting reduces the total costs, empty vehicle travel, and peak charging load by up to 10%.
title Joint Optimization of Autonomous Electric Vehicle Fleet Operations and Charging Station Siting
topic Systems and Control
Multiagent Systems
Robotics
url https://arxiv.org/abs/2107.00165