Electric vehicle (EV) charging infrastructure with charging stations optimumally sited
First Claim
Patent Images
1. A method of locating charging stations comprising:
- collecting traffic information from a plurality of traffic sensors;
mapping traffic in an area;
determining flow through zones in said area with respect to time;
recursively determining a number of charging stations and respective locations for siting said charging stations, wherein recursively determining comprises;
providing a set of locations for siting charging stations in said area,modeling charge demand, the charge demand model identifying a subset of said set of locations with charging EVs as a set of candidate locations and indicating charger use of a plurality of chargers located in each of said set of candidate locations,modeling facility locations, constraining the facility location model according charger capability at each location, budget constraints, and distances between zones to cull said set of candidate locations,comparing said set of candidate locations against said set of locations, and when the sets matchproviding said set of candidate locations and chargers at each location, said set of candidate locations being a set of locations for EV stations; and
displaying recursively determined charging station sites.
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Abstract
A system, method and program product for siting charging stations. A mobility detection module collects traffic data from vehicle sensors distributed in an area. A map matching module maps detected traffic in the area. A vehicle flow module temporally characterizes mapped traffic flow. An electric vehicle (EV) requirements (EVR) evaluator determines an optimal number of charging stations and respective locations for siting the charging stations.
33 Citations
21 Claims
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1. A method of locating charging stations comprising:
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collecting traffic information from a plurality of traffic sensors; mapping traffic in an area; determining flow through zones in said area with respect to time; recursively determining a number of charging stations and respective locations for siting said charging stations, wherein recursively determining comprises; providing a set of locations for siting charging stations in said area, modeling charge demand, the charge demand model identifying a subset of said set of locations with charging EVs as a set of candidate locations and indicating charger use of a plurality of chargers located in each of said set of candidate locations, modeling facility locations, constraining the facility location model according charger capability at each location, budget constraints, and distances between zones to cull said set of candidate locations, comparing said set of candidate locations against said set of locations, and when the sets match providing said set of candidate locations and chargers at each location, said set of candidate locations being a set of locations for EV stations; and displaying recursively determined charging station sites. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A computer program product for locating charging stations, said computer program product comprising a computer usable medium having computer readable program code stored thereon, said computer readable program code causing a computer executing said code to:
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collect traffic information from a plurality of traffic sensors; map traffic in an area; determine flow through zones in said area with respect to time; recursively determine a number of charging stations and respective locations for siting said charging stations in said area, wherein recursively determining further causes said computer to; provide a set of locations for siting charging stations in said area, solve a charge demand objective function, the charge demand objective function solution identifying locations with charging EVs as a set of candidate locations and indicating charger use of a plurality of chargers located in each of said set of candidate locations, solve a facility location objective function, the facility location objective function solution culling said set of candidate locations according charger capability at each location, budget constraints, and distances between zones, compare said set of candidate locations against said set of locations, return to solve said charge demand objective function with said set of candidate locations as said set of locations until said set of candidate locations match said set of locations, and when the sets match provide said set of candidate locations and chargers at each location, said set of candidate locations being a set of locations for EV stations; and display recursively determined charging station sites. - View Dependent Claims (8, 9, 10, 11)
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12. A system for siting charging stations in an area, said system comprising:
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a plurality of vehicle sensors distributed in an area; a modality detection module collecting traffic data from said vehicle sensors; a map matching module mapping detected traffic in said area; a vehicle flow module temporally characterizing mapped traffic flow in said area; and an electric vehicle (EV) requirements (EVR) evaluator determining a number of charging stations and respective locations for siting said charging stations in said area responsive to characterized traffic flow, wherein said modality detection module identifies an associated mode of travel for collected data and said EVR evaluator comprises; a demand estimator estimating demand at each prospective charging station location, a charge demand module determining the maximum number of charging station locations to meet all demand, wherein said charge demand module comprises a charge demand optimization model to determine said maximum number of charging station locations as a set of candidate locations, and wherein for the set of chargers M;
the set of charge demands I;
the set of start time T of time slots;
processing time pi,m of each demand i on each charger m;
the time ri at which demand i is ready to begin charging;
the required dwell time wi of each demand i;
the time di at which demand i departs, that is, begin time plus dwell (ri+wi);
the cost Cm of installing charger m; and
said demand optimization model has the form - View Dependent Claims (13, 14)
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15. A system for siting charging stations in an area, said system comprising:
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a plurality of vehicle sensors distributed in an area; a modality detection module collecting traffic data from said vehicle sensors; a map matching module mapping detected traffic in said area; a vehicle flow module temporally characterizing mapped traffic flow in said area; and an electric vehicle (EV) requirements (EVR) evaluator determining a number of charging stations and respective locations for siting said charging stations in said area responsive to characterized traffic flow, wherein said modality detection module identifies an associated mode of travel for collected data and said EVR evaluator comprises; a demand estimator estimating demand at each prospective charging station location, a charge demand module determining the maximum number of charging station locations to meet all demand, wherein said charge demand module comprises a charge demand optimization model to determine said maximum number of charging station locations as a set of candidate locations, and wherein for the set of candidate locations I to site EV charging stations;
a charger type t, where t=1, 2, 3;
the maximum number of chargers Nti of type t to be located at i; and
, the distance dij between candidate locations i and j;
the total daily demand Dti for charger type t at i;
a distance threshold Z;
charging capacity wt of charger type t;
cost Ct of installing a charger of type t; and
total constraint on the budget B;
the actual number of chargers Xti of type t located at i, the actual demand Ytij for charger type t at i satisfied at j, and the actual demand Yti for charger type t located at i satisfied at i, where Xti, Yti, Ytij≧
0;
said location model, has the form - View Dependent Claims (16)
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17. A computer program product for siting charging stations in an area, said computer program product comprising a computer usable medium having computer readable program code stored thereon, said computer readable program code comprising:
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computer readable program code means for receiving traffic data from a plurality of vehicle sensors distributed in an area; computer readable program code means for collecting traffic data from said vehicle sensors; computer readable program code means for mapping detected traffic in said area; computer readable program code means for temporally characterizing mapped traffic flow; and computer readable program code means for determining a number of electric vehicle (EV) charging stations and respective locations for siting said EV charging stations responsive to characterized traffic flow, wherein said computer readable program code means for collecting traffic data identifies an associated mode of travel for collected traffic data, said computer readable program code means for determining a number of EV charging stations comprising; computer readable program code means for estimating demand at each prospective charging station location, computer readable program code means for determining the maximum number of charging station locations to meet all demand, wherein determining the maximum number of charging station locations determines said maximum number of charging station locations as a set of candidate locations, and, wherein for the set of chargers M;
the set of charge demands I;
the set of start time T of time slots;
processing time pi,m of each demand i on each charger m;
the time ri at which demand i is ready to begin charging;
the required dwell time wi of each demand i;
the time di at which demand i departs, that is, begin time plus dwell (ri+wi);
the cost Cm of installing charger m; and
wherein determining the maximum number of charging station locations has the form - View Dependent Claims (18)
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19. A computer program product for siting charging stations in an area, said computer program product comprising a computer usable medium having computer readable program code stored thereon, said computer readable program code comprising:
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computer readable program code means for receiving traffic data from a plurality of vehicle sensors distributed in an area; computer readable program code means for collecting traffic data from said vehicle sensors; computer readable program code means for mapping detected traffic in said area; computer readable program code means for temporally characterizing mapped traffic flow; and computer readable program code means for determining a number of electric vehicle (EV) charging stations and respective locations for siting said EV charging stations responsive to characterized traffic flow, wherein said computer readable program code means for collecting traffic data identifies an associated mode of travel for collected traffic data, said computer readable program code means for determining a number of EV charging stations comprising; computer readable program code means for estimating demand at each prospective charging station location, computer readable program code means for determining the maximum number of charging station locations to meet all demand, wherein determining the maximum number of charging station locations determines said maximum number of charging station locations as a set of candidate locations, wherein for the set of candidate locations I to site EV charging stations;
a charger type t, where t=1, 2, 3;
the maximum number of chargers Nti of type t to be located at i; and
, the distance dij between candidate locations i and j;
the total daily demand Dti for charger type t at i;
a distance threshold Z;
charging capacity wt of charger type t;
cost Ct of installing a charger of type t; and
total constraint on the budget B;
the actual number of chargers Xti of type t located at i, the actual demand Ytij for charger type t at i satisfied at j, the actual demand Yti for charger type t located at i satisfied at i, where Xti, Yti, Ytij≧
0; and
wherein selecting the charging station locations has the form - View Dependent Claims (20, 21)
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Specification