CHARGE PRIORITIZATION TO MANAGE PEAK LOADS

• US 20170015210A1
• Filed: 07/13/2015
• Published: 01/19/2017
• Est. Priority Date: 07/13/2015
• Status: Abandoned Application

• Current Assignee: EV Connect, Inc. (Schneider Electric SE)
• Original Assignee: EV Connect, Inc. (Schneider Electric SE)
• Inventors: Juhasz, Brad, Eleopoulos, Gus, Minami, Gavin
• Application Number:
  US14/797,976
• Publication Number:
  US 20170015210A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 53/62 in response to charging parameters, e.g. current, voltage or electrical charge
• CPC Class Codes: B60L 53/63 in response to network capacity
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60L 53/66 Data transfer between charging stations and vehicles
• CPC Class Codes: B60L 53/665 Methods related to measuring, billing or payment
• CPC Class Codes: B60L 53/67 Controlling two or more charging stations
• CPC Class Codes: B60L 53/68 Off-site monitoring or control, e.g. remote control
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y02T 90/167 Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: Y04S 10/126 the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
• CPC Class Codes: Y04S 30/12 Remote or cooperative charging
• CPC Class Codes: Y04S 30/14 Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

An electric vehicle charging system includes multiple electric vehicle charging stations, each suitable for charging at least one electric vehicle, and a computing device. The computing device is for determining that a present load exceeds a predetermined peak load, the present load made up of the combined present loads of the multiple electric vehicle charging stations, identifying at least two of the multiple electric vehicle charging stations for adjustment of an electrical load, and adjusting the electrical load of the at least two of the multiple electric vehicle charging stations to arrive at an adjusted load across the multiple electric vehicle charging stations, such that the adjusted load is less than the predetermined peak load.

Claims

1. An electric vehicle charging system comprising:

multiple electric vehicle charging stations, each suitable for charging at least one electric vehicle; and

a computing device for;

determining that a present load exceeds a predetermined peak load, the present load made up of the combined present loads of the multiple electric vehicle charging stations,

identifying at least two of the multiple electric vehicle charging stations for adjustment of an electrical load, and

adjusting the electrical load of the at least two of the multiple electric vehicle charging stations to arrive at an adjusted load across the multiple electric vehicle charging stations, such that the adjusted load is less than the predetermined peak load.

2. The system of claim 1 wherein the computing device is further for:

generating a prioritization matrix for the multiple electric vehicle charging stations based upon individual characteristics of vehicles receiving a charge from each of the multiple electric vehicle charging stations, and

wherein the adjusting of the electrical load of the at least two of the multiple electric vehicle charging stations is according to the prioritization matrix.

3. The system of claim 1 wherein, when the at least two of the multiple electric vehicle charging stations operate on a three phase panel, the adjustment includes calculating an independent throttle amount for each of three bridges of the three phase panel is the lesser of a highest safe voltage that each independent leg a bridged leg can support.

4. The system of claim 1 wherein the predetermined peak load varies dependent upon a selected one or both of (a) time of day and (b) rates charged to an operator of the multiple electric vehicle charging stations for electrical power.

5. The system of claim 1 wherein the adjusting comprises a selected one of:

(a) adjusting the maximum load drawn by the at least two of the multiple electric vehicle charging stations, and (b) disabling the at least two of the multiple electric vehicle charging stations.

6. The system of claim 1 wherein the predetermined peak load is spread across multiple EVCS in distinct physical locations.

7. The system of claim 2 wherein the individual characteristics include at least one of:

(a) a make of each vehicle, (b) a model of each vehicle, (c) a year of each vehicle, (d) a battery size of each vehicle, (e) whether each vehicle is electric-only or a plug-in hybrid, (f) a commute distance from the electric vehicle charging station to a vehicle operator'"'"'s home, (g) additional distances travelled by the vehicle operator on a regular basis, (h) a typical arrival time of each vehicle, (i) a typical departure time of each vehicle, (j) a present state of charge for each vehicle, (k) a present rate of charge for each vehicle, (l) association with an account indicating membership in a special group, and (m) association with an account willing to pay additional fees for continued electric vehicle charging.

8. The system of claim 7 wherein the prioritization matrix prioritizes continuing electric vehicle charging for electric vehicles that are (a) electric-only, and (b) have a state of charge insufficient to enable the electric vehicle to travel an associated commute distance.

9. The system of claim 8 wherein the prioritization matrix further prioritizes continuing electric vehicle charging for vehicles with a typical departure time earlier than typical departure times of others of the vehicles.

10. The system of claim 7 wherein the prioritization matrix prioritizes electric vehicle charging for vehicles that are weighted more heavily based upon association with a selected one of membership in a special group and willingness to pay additional fees for continued electric vehicle charging.

16. The method of claim 1 wherein the predetermined peak load is spread across multiple EVCS in distinct physical locations.

11. A method for charge prioritization to manage peak electrical load across multiple electric vehicle charging stations comprising:

determining that a present load exceeds a predetermined peak load, the present load made up of the combined present loads of the multiple electric vehicle charging stations;

generating a prioritization matrix for the multiple electric vehicle charging stations based upon individual characteristics of vehicles receiving a charge from the multiple electric vehicle charging stations;

identifying at least two of the multiple electric vehicle charging stations for adjustment of an electrical load; and

adjusting the electrical load of the at least two of the multiple electric vehicle charging stations according to the prioritization matrix to arrive at an adjusted load across the multiple electric vehicle charging stations, such that the adjusted load is less than the predetermined peak load.

12. The method of claim 11 further comprising:

generating a prioritization matrix for the multiple electric vehicle charging stations based upon individual characteristics of vehicles receiving a charge from each of the multiple electric vehicle charging stations, and

wherein the adjusting of the electrical load of the at least two of the multiple electric vehicle charging stations is according to the prioritization matrix.

13. The method of claim 11 wherein, when the at least two of the multiple electric vehicle charging stations operate on a three phase panel, the adjustment includes calculating an independent throttle amount for each of three bridges of the three phase panel is the lesser of a highest safe voltage that each independent leg a bridged leg can support.

14. The method of claim 11 wherein the predetermined peak load varies dependent upon a selected one or both of (a) time of day and (b) rates charged to an operator of the multiple electric vehicle charging stations for electrical power.

15. The method of claim 11 wherein the adjusting comprises a selected one of:

(a) adjusting the maximum load drawn by the at least two of the multiple electric vehicle charging stations, and (b) disabling the at least two of the multiple electric vehicle charging stations.

17. The method of claim 12 wherein the individual characteristics include at least one of:

(a) a make of each vehicle, (b) a model of each vehicle, (c) a year of each vehicle, (d) a battery size of each vehicle, (e) whether each vehicle is electric-only or a plug-in hybrid, (f) a commute distance from the electric vehicle charging station to a vehicle operator'"'"'s home, (g) additional distances travelled by the vehicle operator on a regular basis, (h) a typical arrival time of each vehicle, (i) a typical departure time of each vehicle, (j) a present state of charge for each vehicle, (k) a present rate of charge for each vehicle, (l) association with an account indicating membership in a special group, and (m) association with an account willing to pay additional fees for continued electric vehicle charging.

18. The method of claim 17 wherein the prioritization matrix prioritizes continuing electric vehicle charging for electric vehicles that are (a) electric-only, and (b) have a state of charge insufficient to enable the electric vehicle to travel an associated commute distance.

19. The method of claim 18 wherein the prioritization matrix further prioritizes continuing electric vehicle charging for vehicles with a typical departure time earlier than typical departure times of others of the vehicles.

20. The method of claim 17 wherein the prioritization matrix prioritizes electric vehicle charging for vehicles that are weighted more heavily based upon association with a selected one of membership in a special group and willingness to pay additional fees for continued electric vehicle charging.