System and method for managing load distribution across a power grid

• US 9,041,349 B2
• Filed: 03/07/2012
• Issued: 05/26/2015
• Est. Priority Date: 03/08/2011
• Status: Active Grant

• Current Assignee: Trilliant Networks Incorporated
• Original Assignee: Trilliant Networks Incorporated
• Inventors: Bemmel, Vincent, Conant, Robert
• Primary Examiner(s): TSO, EDWARD H
• Application Number:
  US13/414,632
• Publication Number:
  US 20120229089A1
• Time in Patent Office: 1,175 Days
• Field of Search: 320/109, 320/104, 320/107, 320/132, 320/149, 702/61, 702/62, 702/63, 702/64, 702/65
• US Class Current: 320/109
• CPC Class Codes: B60L 53/63 in response to network capacity
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 2310/60 Limiting power consumption in the network or in one section of the network, e.g. load shedding or peak shaving
• CPC Class Codes: H02J 2310/64 The condition being economic, e.g. tariff based load management
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• 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 20/222 Demand response systems, e.g. load shedding, peak shaving
• 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

A method for scheduling a charge of a plug-in electric vehicle (PEV) includes receiving, by a load management system, PEV information from a PEV plugged into an electric vehicle supply equipment (EVSE); transformer information from a transformer management system, the transformer information relating to a transformer associated with the EVSE; determining, by the charging information based on the PEV information and transformer information; providing the charging information to the PEV.

Claims

1. A method for scheduling a charge of a plug-in electric vehicle (PEV) comprising:

receiving, by a load management system, PEV information from a PEV plugged into an electric vehicle supply equipment (EVSE), the EVSE being associated with a given transformer of a plurality of transformers for charging one or more PEV;

acquiring, by a meter network, load information from each of a plurality of meters in the meter network, where one or more of the plurality of meters is associated with the given transformer;

determining, by a transformer management system, transformer information for said given transformer based on load information acquired by the one or more of the plurality of meters associated with the given transformer;

receiving, by the load management system, the transformer information of the given transformer associated with the EVSE;

determining, by the load management system, charging information based on the PEV information and transformer information; and

providing, by the load management system, the charging information to the PEV.

2. A method according to claim 1, wherein the PEV information comprises one or more of the group consisting of account information, charging plan, EVSE type, preferred charge time, power required, and charge rate.

3. A method according to claim 1, wherein the transformer information comprises one or more of the group consisting of vender/model ID, type of transformer, transformer capacity, maximum input voltage, minimum input voltage, duty, frequency range, voltage class, cooling type, magnetic form, and three phase winding configuration.

4. A method according to claim 1, wherein the charging information comprises one or more of the group consisting of charge start time, charge end time, charge duration, and charge rate.

5. A method according to claim 1, further comprising confirming, by the load management system, the PEV information.

6. A method according to claim 1, further comprising charging the PEV according to the charging information.

7. A method according to claim 1 further comprising:

receiving, by the transformer management system, the PEV information;

receiving, by the transformer management system, the charging information; and

updating, by the transformer management system, the transformer information of the given transformer based on the charging information and PEV information.

8. A method according to claim 1, wherein said load management system, said transformer management system, and said EVSE are in communication via a smart meter network.

9. A method according to claim 8, wherein said smart meter network comprises one or more transformer agents, and said transformer information is determined by the one or more transformer agents.

10. A method according to claim 9, wherein the transformer agents provide meter readings to the transformer management system and/or the load management system.

11. A method according to claim 9, wherein the load management system comprises the transformer agents, and the transformer agents determine the charging information.

12. A method according to claim 11, wherein said transformer agents are adapted to determine charging information locally and autonomously.

20. A system according to claim 11, wherein the load management system, the transformer management system, and the EVSE are in communication via the smart meter network.

21. A system according to claim 20, wherein the transformer information of the given distribution transformer is determined by the one or more transformer agents.

22. A system according to claim 21, wherein the transformer agents provide meter readings to the transformer management system and the transformer information is based on the meter readings.

23. A system according to claim 21, wherein the load management system comprises the transformer agents, and the transformer agents determine the charging information.

24. A system according to claim 23, wherein the transformer agents are adapted to determine charging information locally and autonomously.

13. A system for scheduling a charge of a plug-in electric vehicle (PEV) comprising:

a smart meter network comprising one or more transformer agents, where each of the one or more transformer agents acquire load information from a plurality of meters in the smart meter network, each meter being associated with a given distribution transformer of a plurality of distribution transformers;

a load management system in communication with the smart meter network;

a transformer management system in communication with the load management system and the smart meter network for using the load information acquired from the transformer agents to develop transformer information relating to the given distribution transformer; and

an electric vehicle supply equipment (EVSE) in communication with the load management system and the transformer management system via the smart meter network;

wherein, the load management system receives PEV information from a PEV plugged into the EVSE and receives the transformer information relating to the given distribution transformer from the transformer management system; and

wherein the load management system determines charging information based on the PEV information and the transformer information of the given distribution transformer and provides the charging information to the PEV.

14. A system according to claim 13, wherein the PEV information comprises one or more of the group consisting of account information, charging plan, EVSE type, preferred charge time, power required, and charge rate.

15. A system according to claim 13, wherein the transformer information comprises one or more of the group consisting of vender/model ID, type of transformer, transformer capacity, maximum input voltage, minimum input voltage, duty, frequency range, voltage class, cooling type, magnetic form, and three phase winding configuration.

16. A system according to claim 13, wherein the charging information comprises one or more of the group consisting of charge start time, charge end time, charge duration, and charge rate.

17. A system according to claim 13, further comprising confirming, by the load management system, the PEV information.

18. A system according to claim 13, wherein the EVSE charges the PEV according to the charging information.

19. A system according to claim 13 wherein the transformer management system receives the PEV information and the charging information and updates the transformer information of the given distribution transformer based on the charging information and PEV information.