Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L67/00—Network arrangements or protocols for supporting network services or applications
  • H04L67/01—Protocols
  • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
  • H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L50/00—Electric propulsion with power supplied within the vehicle
  • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
  • B60L3/12—Recording operating variables ; Monitoring of operating variables
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
  • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
  • B60L53/14—Conductive energy transfer
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
  • B60L53/50—Charging stations characterised by energy-storage or power-generation means
  • B60L53/57—Charging stations without connection to power networks
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
  • B60L53/60—Monitoring or controlling charging stations
  • B60L53/63—Monitoring or controlling charging stations in response to network capacity
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
  • B60L53/60—Monitoring or controlling charging stations
  • B60L53/64—Optimising energy costs, e.g. responding to electricity rates
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
  • B60L53/60—Monitoring or controlling charging stations
  • B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
  • B60L53/60—Monitoring or controlling charging stations
  • B60L53/66—Data transfer between charging stations and vehicles
  • B60L53/665—Methods related to measuring, billing or payment
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
  • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
  • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
  • H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
  • H02J13/00017—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
  • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
  • H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
  • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
  • H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
  • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
  • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
  • H02J3/322—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
  • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L12/00—Data switching networks
  • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
  • H04L12/46—Interconnection of networks
  • H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
  • H04L12/462—LAN interconnection over a bridge based backbone
  • H04L12/4625—Single bridge functionality, e.g. connection of two networks over a single bridge
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L67/00—Network arrangements or protocols for supporting network services or applications
  • H04L67/01—Protocols
  • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L2240/00—Control parameters of input or output; Target parameters
  • B60L2240/70—Interactions with external data bases, e.g. traffic centres
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L2270/00—Problem solutions or means not otherwise provided for
  • B60L2270/30—Preventing theft during charging
  • B60L2270/32—Preventing theft during charging of electricity
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
  • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02B90/20—Smart grids as enabling technology in buildings sector
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/60—Other road transportation technologies with climate change mitigation effect
  • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/60—Other road transportation technologies with climate change mitigation effect
  • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/60—Other road transportation technologies with climate change mitigation effect
  • Y02T10/72—Electric energy management in electromobility
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02T90/10—Technologies relating to charging of electric vehicles
  • Y02T90/12—Electric charging stations
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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  • Y02T90/10—Technologies relating to charging of electric vehicles
  • Y02T90/14—Plug-in electric vehicles
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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  • Y02T90/10—Technologies relating to charging of electric vehicles
  • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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  • Y02T90/10—Technologies relating to charging of electric vehicles
  • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
  • Y02T90/167—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]
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
  • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
  • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
  • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
  • Y04S10/126—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation 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]
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
  • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
  • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
  • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
  • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
  • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
  • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
  • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
  • Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
  • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
  • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
  • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
  • Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol

Definitions

• FIG. 1 is a diagram of an exemplary power aggregation system.
• FIG. 2 is a diagram of exemplary connections between an electric vehicle, the power grid, and the Internet.
• FIG. 3 is a block diagram of exemplary connections between an electric resource and a flow control server of the power aggregation system.
• Fig. 4 is a diagram of an exemplary layout of the power aggregation system.
• FIG. 5 is a diagram of exemplary control areas in the power aggregation system.
• Fig. 6 is a diagram of multiple flow control centers in the power aggregation system.
• FIG. 7 is a block diagram of an exemplary flow control server.
• FIG. 8 is block diagram of an exemplary remote intelligent power flow module.
• FIG. 9 is a diagram of a first exemplary technique for locating a connection location of an electric resource on a power grid.
• FIG. 10 is a diagram of a second exemplary technique for locating a connection location of an electric resource on the power grid.
• FIG. 11 is a diagram of a third exemplary technique for locating a connection location of an electric resource on the power grid.
• FIG. 12 is a diagram of a fourth exemplary technique for locating a connection location of an electric resource on the power grid network.
• Fig. 13 is a flow diagram of an exemplary method of power aggregation.
• Fig. 14 is a flow diagram of an exemplary method of communicatively controlling an electric resource for power aggregation.
• Fig. 15 is a flow diagram of an exemplary method of metering bidirectional power of an electric resource.
• Fig. 16 is a flow diagram of an exemplary method of determining an electric network location of an electric resource.
• Fig. 17 is a flow diagram of an exemplary method of scheduling power aggregation.
• Fig. 18 is a flow diagram of an exemplary method of extending a user interface for power aggregation.
• FIG. 19 is a flow diagram of an exemplary method of gaining and maintaining electric vehicle owners in a power aggregation system.
• Described herein is a power aggregation system for distributed electric resources, and associated methods.
• the exemplary system communicates over the Internet and/or some other public or private networks with numerous individual electric resources connected to a power grid (hereinafter, "grid”).
• grid a power grid
• the exemplary system can dynamically aggregate these electric resources to provide power services to grid operators (e.g. utilities, Independent System Operators (ISO), etc).
• grid operators e.g. utilities, Independent System Operators (ISO), etc.
• Power services refers to energy delivery as well as other ancillary services including demand response, regulation, spinning reserves, non-spinning reserves, energy imbalance, and similar products.
• Aggregation refers to the ability to control power flows into and out of a set of spatially distributed electric resources with the purpose of providing a power service of larger magnitude.
• Power grid operator refers to the entity that is responsible for maintaining the operation and stability of the power grid within or across an electric control area. The power grid operator may constitute some combination of manual/human action/intervention and automated processes controlling generation signals in response to system sensors.
• a "control area operator” is one example of a power grid operator.
• Control area refers to a contained portion of the electrical grid with defined input and
• Power grid as used herein means a power distribution system/network that connects producers of power with consumers of power.
• the network may include generators, transformers, interconnects, switching stations, substations, feeders, and safety equipment as part of either/both the transmission system (i.e., bulk power) or the distribution system (i.e. retail power).
• the exemplary power aggregation system is vertically scalable for use with a neighborhood, a city, a sector, a control area, or (for example) one of the eight large-scale Interconnects in the North American Electric Reliability Council (NERC).
• the exemplary system is horizontally scalable for use in providing power services to multiple grid areas simultaneously.
• Grid conditions means the need for more or less power flowing in or out of a section of the electric power grid, in a response to one of a number of conditions, for example supply changes, demand changes, contingencies and failures, ramping events, etc. These grid conditions typically manifest themselves as power quality events such as under- or over-voltage events and under- or over-frequency events.
• Power quality events typically refers to manifestations of power grid instability including voltage deviations and frequency deviations; additionally, power quality events as used herein also includes other disturbances in the quality of the power delivered by the power grid such as sub-cycle voltage spikes and harmonics.
• Electric resource typically refers to electrical entities that can be commanded to do some or all of these three things: take power (act as load), provide power (act as power generation or source), and store energy. Examples may include battery/charger/inverter systems for electric or hybrid vehicles, repositories of used-but-serviceable electric vehicle batteries, fixed energy storage, fuel cell generators, emergency generators, controllable loads, etc.
• Electric vehicle is used broadly herein to refer to pure electric and hybrid electric vehicles, such as plug-in hybrid electric vehicles (PHEVs), especially vehicles that have significant storage battery capacity and that connect to the power
• electric vehicle means a vehicle that gets some or all of its energy for motion and other purposes from the power grid.
• an electric vehicle has an energy storage system, which may consist of batteries, capacitors, etc., or some combination thereof.
• An electric vehicle may or may not have the capability to provide power back to the electric grid.
• Electric vehicle "energy storage systems" (batteries, supercapacitors, and/or other energy storage devices) are used herein as a representative example of electric resources intermittently or permanently connected to the grid that can have dynamic input and output of power. Such batteries can function as a power source or a power load.
• a collection of aggregated electric vehicle batteries can become a statistically stable resource across numerous batteries, despite recognizable tidal connection trends (e.g., an increase in the total umber of vehicles connected to the grid at night; a downswing in the collective number of connected batteries as the morning commute begins, etc.)
• connection trends are predictable and such batteries become a stable and reliable resource to call upon, should the grid or a part of the grid (such as a person's home in a blackout) experience a need for increased or decreased power.
• Data collection and storage also enable the power aggregation system to predict connection behavior on a per-user basis.
• FIG. 1 shows an exemplary power aggregation system 100.
• a flow control center 102 is communicatively coupled with a network, such as a public/private mix that includes the Internet 104, and includes one or more servers 106 providing a centralized power aggregation service.
• Internet 104 will be used herein as representative of many different types of communicative networks and network mixtures.
• the flow control center 102 maintains communication 108 with operators of power grid(s), and communication 110 with remote resources, i.e., communication with peripheral electric resources 112 ("end" or "terminal" nodes /devices of a power network) that are connected to the power grid 114.
• powerline communicators (PLCs) 1 such as those that include or consist of Ethernet-over-powerline bridges 120 are implemented at connection locations so that the "last mile" (in this case, last feet —
• each physical location of each electric resource 112 may be associated with a corresponding Ethernet-over-powerline bridge 120 (hereinafter, "bridge") at or near the same location as the electric resource 112.
• bridge 120 is typically connected to an Internet access point of a location owner, as will be described in greater detail below.
• the communication medium from flow control center 102 to the connection location, such as residence 124, can take many forms, such as cable modem, DSL, satellite, fiber, WiMax, etc.
• electric resources 112 may connect with the Internet by a different medium than the same power wire that connects them to the power grid 114.
• a given electric resource 112 may have its own wireless capability to connect directly with the Internet 104 and thereby with the flow control center 102.
• Electric resources 112 of the exemplary power aggregation system 100 may include the batteries of electric vehicles connected to the power grid 114 at residences 124, parking lots 126 etc.; batteries in a repository 128, fuel cell generators, private dams, conventional power plants, and other resources that produce electricity and/or store electricity physically or electrically.
• each participating electric resource 112 or group of local resources has a corresponding remote intelligent power flow (IPF) module 134 (hereinafter, "remote IPF module” 134).
• IPF remote intelligent power flow
• the centralized flow control center 102 administers the power aggregation system 100 by communicating with the remote IPF modules 134 distributed peripherally among the electric resources 112.
• the remote IPF modules 134 perform several different functions, including providing the flow control center 102 with the statuses of remote resources; controlling the amount, direction, and timing of power being transferred into or out of a remote electric resource 112; provide metering of power being transferred into or out of a remote electric resource 112; providing safety measures during power transfer and changes of conditions in the power grid 114; logging activities; and providing self- contained control of power transfer and safety measures when communication with the flow control center 102 is interrupted.
• the remote IPF modules 134 will be described in greater detail below.
• FIG. 2 shows another view of exemplary electrical and communicative connections to an electric resource 112.
• an electric vehicle 200 includes a battery bank 202 and an exemplary remote IPF module 134.
• the electric vehicle 200 may connect to a conventional wall receptacle (wall outlet) 204 of a residence 124, the wall receptacle 204 representing the peripheral edge of the power grid 114 connected via a residential powerline 206.
• the power cord 208 between the electric vehicle 200 and the wall outlet 204 can be composed of only conventional wire and insulation for conducting alternating current (AC) power to and from the electric vehicle 200.
• a location-specific connection locality module 210 performs the function of network access point — in this case, the Internet access point.
• a bridge 120 intervenes between the receptacle 204 and the network access point so that the power cord 208 can also carry network communications between the electric vehicle 200 and the receptacle 204.
• connection locality module 210 With such a bridge 120 and connection locality module 210 in place in a connection location, no other special wiring or physical medium is needed to communicate with the remote IPF module 134 of the electric vehicle 200 other than a conventional power cord 208 for providing residential line current at conventional voltage. Upstream of the connection locality module 210, power and communication with the electric vehicle 200 are resolved into the powerline 206 and an Internet cable 104.
• the power cord 208 may include safety features not found in conventional power and extension cords.
• an electrical plug 212 of the power cord 208 may include electrical and/or mechanical safeguard components to prevent the remote IPF module 134 from electrifying or exposing the male conductors of the power cord 208 when the conductors are exposed to a human user.
• Fig. 3 shows another implementation of the connection locality module 210 of Fig. 2, in greater detail.
• an electric resource 112 has an associated remote IPF module 134, including a bridge 120.
• the power cord 208 connects the electric resource 112 to the power grid 114 and also to the connection locality module 210 in order to communicate with the flow control server 106.
• the connection locality module 210 includes another instance of a bridge 120', connected to a network access point 302, which may include such
• lee ⁇ hayes ⁇ c sa-s&szx components as a router, switch, and/or modem, to establish a hardwired or wireless connection with, in this case, the Internet 104.
• the power cord 208 between the two bridges 120 and 120' is replaced by a wireless Internet link, such as a wireless transceiver in the remote IPF module 134 and a wireless router in the connection locality module 210.
• Fig. 4 shows an exemplary layout 400 of the power aggregation system 100.
• the flow control center 102 can be connected to many different entities, e.g., via the Internet 104, for communicating and receiving information.
• the exemplary layout 400 includes electric resources 112, such as plug-in electric vehicles 200, physically connected to the grid within a single control area 402.
• the electric resources 112 become an energy resource for grid operators 404 to utilize.
• the exemplary layout 400 also includes end users 406 classified into electric resource owners 408 and electrical connection location owners 410, who may or may not be one and the same.
• the stakeholders in an exemplary power aggregation system 100 include the system operator at the flow control center 102, the grid operator 404, the resource owner 408, and the owner of.
• Electrical connection location owners 410 can include: [00043] • Rental car lots - rental car companies often have a large portion of their fleet parked in the lot. They can purchase fleets of electric vehicles 200 and, participating in a power aggregation system 100, generate revenue from idle fleet vehicles.
• Public parking lots - parking lot owners can participate in the power aggregation system 100 to generate revenue from parked electric vehicles 200. Vehicle owners can be offered free parking, or additional incentives, in exchange for providing power services.
• the vehicle battery 202 and associated power electronics within the vehicle can provide local power backup power during times of peak load or power outages.
• Residential neighborhoods - neighborhoods can participate in a power aggregation system 100 and be equipped with power-delivery devices (deployed, for example, by homeowner cooperative groups) that generate revenue from parked electric vehicles 200.
• the grid operations 116 of Fig. 4 collectively include interactions with energy markets 412, the interactions of grid operators 404, and the interactions of automated grid controllers 118 that perform automatic physical control of the power grid 114.
• the flow control center 102 may also be coupled with information sources
• Other data sources 414 include the system stakeholders, public databases, and historical system data, which may be used to optimize system performance and to satisfy constraints on the exemplary power aggregation system
• an exemplary power aggregation system 100 may consist of components that:
• Exemplary IPF systems 100 in such a layout 400 can provide many benefits: for example, lower-cost ancillary services (i.e., power services), finegrained (both temporally and spatially) control over resource scheduling, guaranteed reliability and service levels, increased service levels via intelligent resource scheduling, firming of intermittent generation sources such as wind and solar power generation.
• ancillary services i.e., power services
• finegrained (both temporally and spatially) control over resource scheduling i.e., guaranteed reliability and service levels
• increased service levels via intelligent resource scheduling such as wind and solar power generation.
• the exemplary power aggregation system 100 enables a grid operator 404 to control the aggregated electric resources 112 connected to the power grid 114.
• An electric resource 112 can act as a power source, load, or storage, and the resource 112 may exhibit combinations of these properties.
• Control of an electric resource 112 is the ability to actuate power consumption, generation, or energy storage from an aggregate of these electric resources 112.
• FIG. 5 shows the role of multiple control areas 402 in the exemplary power aggregation system 100.
• Each electric resource 112 can be connected to the power aggregation system 100 within a specific electrical control area.
• a single instance of the flow control center 102 can administer electric resources 112 from multiple distinct control areas 501 (e.g., control areas 502, 504, and 506).
• this functionality is achieved by logically partitioning resources within the power aggregation system 100. For example, when the control areas 402 include an arbitrary number of control areas, control area "A" 502, control area "B" 504, ... , control area "n” 506, then grid operations 116 can include corresponding control area operators 508, 510, ..., and 512.
• control division into a control hierarchy that includes control division groupings above and below the illustrated control areas 402 allows the power aggregation system 100 to scale to power grids 114 of different magnitudes and/or to varying numbers of electric resources 112 connected with a power grid 114.
• FIG. 6 shows an exemplary layout 600 of an exemplary power aggregation system 100 that uses multiple centralized flow control centers 102 and 102'. Each flow control center 102 and 102' has its own respective end users 406 and 406'. Control areas 402 to be administered by each specific instance of a flow control
• lee ⁇ hayes « stB-i ⁇ r ⁇ s 10 center 102 can be assigned dynamically.
• a first flow control center 102 may administer control area A 502 and control area B 504, while a second flow control center 102' administers control area n 506.
• corresponding control area operators (508, 510, and 512) are served by the same flow control center 102 that serves their respective different control areas.
• FIG. 7 shows an exemplary server 106 of the flow control center 102.
• the illustrated implementation in Fig. 7 is only one example configuration, for descriptive purposes. Many other arrangements of the illustrated components or even different components constituting an exemplary server 106 of the flow control center 102 are possible within the scope of the subject matter.
• Such an exemplary server 106 and flow control center 102 can be executed in hardware, software, or combinations of hardware, software, firmware, etc.
• the exemplary flow control server 106 includes a connection manager 702 to communicate with electric resources 112, a prediction engine 704 that may include a learning engine 706 and a statistics engine 708, a constraint optimizer 710, and a grid interaction manager 712 to receive grid control signals 714.
• Grid control signals 714 may include generation control signals, such as automated generation control (AGC) signals.
• AGC automated generation control
• the flow control server 106 may further include a database / information warehouse 716, a web server 718 to present a user interface to electric resource owners 408, grid operators 404, and electrical connection location owners 410; a contract manager 720 to negotiate contract terms with energy markets 412, and an information acquisition engine 414 to track weather, relevant news events, etc., and download information from public and private databases 722 for predicting behavior of large groups of the electric resources 112, monitoring energy prices, negotiating contracts, etc.
• a database / information warehouse 716 to present a user interface to electric resource owners 408, grid operators 404, and electrical connection location owners 410
• a contract manager 720 to negotiate contract terms with energy markets 412
• an information acquisition engine 414 to track weather, relevant news events, etc., and download information from public and private databases 722 for predicting behavior of large groups of the electric resources 112, monitoring energy prices, negotiating contracts, etc.
• connection manager 702 maintains a communications channel with each electric resource 112 that is connected to the power aggregation system 100. That is, the connection manager 702 allows each electric resource 112 to log on and communicate, e.g., using Internet Protocol (IP) if the network is the Internet 104.
• IP Internet Protocol
• the electric resources 112 call home. That is, in one implementation they always initiate the connection with the server106. This facet enables the exemplary IPF modules 134 to work around problems with firewalls, IP addressing, reliability, etc.
• the IPF module 134 can connect to the home's router via the powerline connection.
• the router will assign the vehicle 200 an address (DHCP), and the vehicle 200 can connect to the server 106 (no holes in the firewall needed from this direction).
• DHCP vehicle address
• the IPF module 134 knows to call home again and connect to the next available server resource.
• the grid interaction manager 712 receives and interprets signals from the interface of the automated grid controller 118 of a grid operator 404. In one implementation, the grid interaction manager 712 also generates signals to send to automated grid controllers 118. The scope of the signals to be sent depends on agreements or contracts between grid operators 404 and the exemplary power aggregation system 100. In one scenario the grid interaction manager 712 sends information about the availability of aggregate electric resources 112 to receive power from the grid 114 or supply power to the grid 114. In another variation, a contract may allow the grid interaction manager 712 to send control signals to the automated grid controller 118 — to control the grid 114, subject to the built-in constraints of the automated grid controller 118 and subject to the scope of control allowed by the contract.
• the database 716 can store all of the data relevant to the power aggregation system 100 including electric resource logs, e.g., for electric vehicles 200, electrical connection information, per-vehicle energy metering data, resource owner preferences, account information, etc.
• the web server 718 provides a user interface to the system stakeholders, as described above.
• a user interface serves primarily as a mechanism for conveying information to the users, but in some cases, the user interface serves to acquire data, such as preferences, from the users.
• the web server 718 provides a user interface to the system stakeholders, as described above.
• Such a user interface serves primarily as a mechanism for conveying information to the users, but in some cases, the user interface serves to acquire data, such as preferences, from the users.
• the web server 718 provides a user interface to the system stakeholders, as described above.
• Such a user interface serves primarily as a mechanism for conveying information to the users, but in some cases, the user interface serves to acquire data, such as preferences, from the users.
• the web server 718 provides a user interface to the system stakeholders, as described above.
• Such a user interface serves primarily as a mechanism for conveying information to the users, but in some cases, the user interface serves to acquire data, such as preferences, from the users.
• lee ⁇ hayes ⁇ c xa-xx&x 12 server 718 can also initiate contact with participating electric resource owners 408 to advertise offers for exchanging electrical power.
• the bidding/contract manager 720 interacts with the grid operators 404 and their associated energy markets 412 to determine system availability, pricing, service levels, etc.
• the information acquisition engine 414 communicates with public and private databases 722, as mentioned above, to gather data that is relevant to the operation of the power aggregation system 100.
• the prediction engine 704 may use data from the data warehouse 716 to make predictions about electric resource behavior, such as when electric resources 112 will connect and disconnect, global electric resource availability, electrical system load, real-time energy prices, etc.
• the predictions enable the power aggregation system 100 to utilize more fully the electric resources 112 connected to the power grid 114.
• the learning engine 706 may track, record, and process actual electric resource behavior, e.g., by learning behavior of a sample or cross-section of a large population of electric resources 112.
• the statistics engine 708 may apply various probabilistic techniques to the resource behavior to note trends and make predictions.
• the prediction engine 704 performs predictions via collaborative filtering.
• the prediction engine 704 can also perform per-user predictions of one or more parameters, including, for example, connect-time, connect duration, state-of-charge at connect time, and connection location.
• the prediction engine 704 may draw upon information, such as historical data, connect time (day of week, week of month, month of year, holidays, etc.), state-of-charge at connect, connection location, etc.
• a time series prediction can be computed via a recurrent neural network, a dynamic Bayesian network, or other directed graphical model.
• the prediction engine 704 can predict the time of the next connection, the state-of- charge at connection time, the location of the connection (and may assign it a probability/likelihood). Once the resource 112 has connected, the time-of- connection, state-of-charge at-connection, and connection location become further inputs to refinements of the predictions of the connection duration. These predictions help to guide predictions of total system availability as well as to determine a more accurate cost function for resource allocation. [00077] Building a parameterized prediction model for each unique user is not always scalable in time or space.
• the prediction engine 704 builds a reduced set of models where each model in the reduced set is used to predict the behavior of many users.
• the system 100 can identify features of each user, such as number of unique connections/disconnections per day, typical connection time(s), average connection duration, average state-of-charge at connection time, etc., and can create clusters of users in either a full feature space or in some reduced feature space that is computed via a dimensionality reduction algorithm such as Principal Components Analysis, Random Projection, etc.
• the cluster assignment procedure is varied to optimize the system 100 for speed (less clusters), for accuracy (more clusters), or some combination of the two.
• This exemplary clustering technique has multiple benefits. First, it enables a reduced set of models, and therefore reduced model parameters, which reduces the computation time for making predictions. It also reduces the storage space of the model parameters. Second, by identifying traits (or features) of new users to the system 100, these new users can be assigned to an existing cluster of users with similar traits, and the cluster model, built from the extensive data of the existing users, can make more accurate predictions about the new user more quickly because it is leveraging the historical performance of similar users. Of course, over time, individual users may change their behaviors and may be reassigned to new clusters that fit their behavior better.
• the constraint optimizer 710 combines information from the prediction engine 704, the data warehouse 716, and the contract manager 720 to generate resource control signals that will satisfy the system constraints. For example, the constraint optimizer 710 can signal an electric vehicle 200 to charge its battery bank 202 at a certain charging rate and later to discharge the battery bank 202 for
• lee ⁇ hayes ⁇ c 509-32942 14 uploading power to the power grid 114 at a certain upload rate: the power transfer rates and the timing schedules of the power transfers optimized to fit the tracked individual connect and disconnect behavior of the particular electric vehicle 200 and also optimized to fit a daily power supply and demand "breathing cycle" of the power grid 114.
• the constraint optimizer 710 plays a key role in converting grid control signals 714 or information sources 414 into vehicle control signals, mediated by the connection manager 702. Mapping grid control signals 714 from a grid operator 404 or information sources 414 into control signals that are sent to each unique electrical resource 112 in the system 100 is an example of a specific constraint optimization problem.
• Each resource 112 has associated constraints, either hard or soft. Examples of resource constraints may include: price sensitivity of the owner, vehicle state-of-charge (e.g., if the vehicle 200 is fully charged, it cannot participate in loading the grid 114), predicted amount of time until the resource 112 disconnects from the system 100, owner sensitivity to revenue versus state-of-charge, electrical limits of the resource 114, manual charging overrides by resource owners 408, etc.
• the constraints on a particular resource 112 can be used to assign a cost for activating each of the resource's particular actions. For example, a resource whose storage system 202 has little energy stored in it will have a low cost associated with the charging operation, but a very high cost for the generation operation.
• a fully charged resource 112 that is predicted to be available for ten hours will have a lower cost generation operation than a fully charged resource 112 that is predicted to be disconnected within the next 15 minutes, representing the negative consequence of delivering a less-than-full resource to its owner.
• the following is one example scenario of converting one generating signal 714 that comprises a system operating level (e.g. -10 megawatts to +10 megawatts, where + represents load, - represents generation) to a vehicle control signal. It is worth noting that because the system 100 can meter the actual power flows in each resource 112, the actual system operating level is known at all times. [00083] In this example, assume the initial system operating level is 0 megawatts, no resources are active (taking or delivering power from the grid), and the negotiated aggregation service contract level for the next hour is +/- 5 megawatts.
• a system operating level e.g. -10 megawatts to +10 megawatts, where + represents load, - represents generation
• the exemplary power aggregation system 100 maintains three lists of available resources 112.
• the first list contains resources 112 that can be activated for charging (load) in priority order.
• Each of the resources 112 in these lists (e.g., all resources 112 can have a position in both lists) have an associated cost.
• the priority order of the lists is directly related to the cost (i.e., the lists are sorted from lowest cost to highest cost). Assigning cost values to each resource 112 is important because it enables the comparison of two operations that achieve similar results with respect to system operation.
• the third list of resources 112 contains resources with hard constraints. For example, resources whose owner's 408 have overridden the system 100 to force charging will be placed on the third list of static resources.
• the grid-operator-requested operating level changes to +2 megawatts.
• the system activates charging the first 'n' resources from the list, where 'n' is the number of resources whose additive load is predicted to equal 2 megawatts. After the resources are activated, the result of the activations are monitored to determine the actual result of the action. If more than 2 megawatts of load is active, the system will disable charging in reverse priority order to maintain system operation within the error tolerance specified by the contract.
• the requested operating level remains constant at 2 megawatts.
• the behavior of some of the electrical resources may not be static.
• Other vehicles 200 may connect to the system 100 and demand immediate charging. All of these actions will cause a change in the operating level of the power aggregation system 100. Therefore, the system 100 continuously monitors the system operating level and activates or deactivates resources 112 to maintain the operating level within the error tolerance specified by the contract.
• the grid-operator-requested operating level decreases to -1 megawatts.
• the system consults the lists of available resources and chooses the lowest cost set of resources to achieve a system operating level of -1 megawatts. Specifically, the system moves sequentially through the priority lists, comparing the cost of enabling generation versus disabling charging, and activating the lowest cost resource at each time step. Once the operating level reaches -1 megawatts, the system 100 continues to monitor the actual operating level, looking for deviations that would require the activation of an additional resource 112 to maintain the operating level within the error tolerance specified by the contract.
• an exemplary costing mechanism is fed information on the real-time grid generation mix to determine the marginal consequences of charging or generation (vehicle 200 to grid 114) on a "carbon footprint," the impact on fossil fuel resources and the environment in general.
• the exemplary system 100 also enables optimizing for any cost metric, or a weighted combination of several.
• the system 100 can optimize figures of merit that may include, for example, a combination of maximizing economic value and minimizing environmental impact, etc.
• the system 100 also uses cost as a temporal variable. For example, if the system 100 schedules a discharged pack to charge during an upcoming time window, the system 100 can predict its look-ahead cost profile as it charges, allowing the system 100 to further optimize, adaptively. That is, in some circumstances the system 100 knows that it will have a high-capacity generation resource by a certain future time.
• Multiple components of the flow control server 106 constitute a scheduling system that has multiple functions and components:
• [00091] • data collection (gathers real-time data and stores historical data); [00092] • projections via the prediction engine 704, which inputs real-time data, historical data, etc.; and outputs resource availability forecasts; [00093] • optimizations built on resource availability forecasts, constraints, such as command signals from grid operators 404, user preferences, weather conditions, etc. The optimizations can take the form of resource control plans that optimize a desired metric.
• the scheduling function can enable a number of useful energy services, including:
• An exemplary power aggregation system 100 aggregates and controls the load presented by many charging/uploading electric vehicles 200 to provide power services (ancillary energy services) such as regulation and spinning reserves.
• power services ancillary energy services
• more complex interleavings of individual electric resources by the power aggregation system 100 are possible.
• the power aggregation system 100 includes power-factor correction circuitry placed in electric vehicles 200 with the exemplary remote IPF module 134, thus enabling such a service.
• the electric vehicles 200 can have capacitors (or inductors) that can be dynamically connected to the grid, independent of whether the electric vehicle 200 is charging, delivering power, or doing nothing. This service can then be sold to utilities for distribution level dynamic VAR support.
• the power aggregation system 100 can both sense the need for VAR support in a distributed manner and use the distributed remote IPF modules 134 to take actions that provide VAR support without grid operator 404 intervention.
• Fig. 8 shows the remote IPF module 134 of Figs. 1 and 2 in greater detail.
• the illustrated remote IPF module 134 is only one example configuration, for descriptive purposes. Many other arrangements of the illustrated components or even different components constituting an exemplary remote IPF module 134 are possible within the scope of the subject matter.
• Such an exemplary remote IPF module 134 has some hardware components and some components that can be executed in hardware, software, or combinations of hardware, software, firmware, etc.
• the illustrated example of a remote IPF module 134 is represented by an implementation suited for an electric vehicle 200.
• some vehicle systems 800 are included as part of the exemplary remote IPF module 134 for the sake of description.
• the remote IPF module 134 may exclude some or all of the vehicles systems 800 from being counted as components of the remote IPF module 134.
• the depicted vehicle systems 800 include a vehicle computer and data interface 802, an energy storage system, such as a battery bank 202, and an inverter / charger 804.
• the remote IPF module 134 also includes a communicative power flow controller 806.
• the communicative power flow controller 806 in turn includes some components that interface with AC power from the grid 114, such as a powerline communicator, for example an Ethernet-over-powerline bridge 120, and a current or current/voltage (power) sensor 808, such as a current sensing transformer.
• the communicative power flow controller 806 also includes Ethernet and information processing components, such as a processor 810 or microcontroller and an associated Ethernet media access control (MAC) address 812; volatile random access memory 814, nonvolatile memory 816 or data storage, an interface such as an RS-232 interface 818 or a CANbus interface 820; an Ethernet physical layer interface 822, which enables wiring and signaling according to Ethernet standards for the physical layer through means of network access at the MAC / Data Link Layer and a common addressing format.
• the Ethernet physical layer interface 822 provides electrical, mechanical, and procedural interface to the transmission
• wireless or other communication channels with the Internet 104 are used in place of the Ethernet-over-powerline bridge 120.
• the communicative power flow controller 806 also includes a bidirectional power flow meter 824 that tracks power transfer to and from each electric resource
• the battery bank 202 of an electric vehicle 200 in this case the battery bank 202 of an electric vehicle 200.
• the communicative power flow controller 806 operates either within, or connected to an electric vehicle 200 or other electric resource 112 to enable the aggregation of electric resources 112 introduced above (e.g., via a wired or wireless communication interface).
• These above-listed components may vary among different implementations of the communicative power flow controller 806, but implementations typically include:
• Implementations of the communicative power flow controller 806 can enable functionality including:
• the communicative power flow controller 806 includes a central processor 810, interfaces 818 and 820 for communication within the electric vehicle
• a powerline communicator such as an Ethernet-over-powerline bridge 120 for communication external to the electric vehicle 200
• a power flow meter 824 for determining whether the power flow of the electric vehicle 200 is a powerline communicator.
• the remote IPF module 134 initiates a connection to the flow control server 106, registers itself, and waits for signals from the flow control server 106 that direct the remote IPF module 134 to adjust the flow of power into or out of the electric vehicle 200. These signals are communicated to the vehicle computer 802 via the data interface, which may be any suitable interface including the RS-232 interface 818 or the CANbus interface 820.
• the vehicle computer 802 following the signals received from the flow control server 106, controls the inverter / charger 804 to charge the vehicle's battery bank 202 or to discharge the battery bank 202 in upload to the grid 114.
• the remote IPF module 134 transmits information regarding energy flows to the flow control server 106. If, when the electric vehicle 200 is connected to the grid 114, there is no communications path to the flow control server 106 (i.e., the location is not equipped properly, or there is a network failure), the electric vehicle 200 can follow a preprogrammed or learned behavior of off-line operation, e.g., stored as a set of instructions in the nonvolatile memory 816. In such a case, energy transactions can also be cached in nonvolatile memory 816 for later transmission to the flow control server 106.
• the remote IPF module 134 listens passively, logging select vehicle operation data for later analysis and consumption.
• the remote IPF module 134 can transmit this data to the flow control server 106 when a communications channel becomes available.
• Power is the rate of energy consumption per interval of time. Power indicates the quantity of energy transferred during a certain period of time, thus the units of power are quantities of energy per unit of time.
• lee ⁇ hayes * ss-Er ⁇ s ⁇ 21 meter 824 measures power for a given electric resource 112 across a bi-directional flow — e.g., power from grid 114 to electric vehicle 200 or from electric vehicle 200 to the grid 114.
• the remote IPF module 134 can locally cache readings from the power flow meter 824 to ensure accurate transactions with the central flow control server 106, even if the connection to the server is down temporarily, or if the server itself is unavailable.
• the exemplary power flow meter 824 in conjunction with the other components of the remote IPF module 134 enables system-wide features in the exemplary power aggregation system 100 that include:
• the exemplary power aggregation system 100 also includes various techniques for determining the electrical network location of a mobile electric resource 112, such as a plug-in electric vehicle 200.
• Electric vehicles 200 can connect to the grid 114 in numerous locations and accurate control and transaction of energy exchange can be enabled by specific knowledge of the charging location.
• Some of the exemplary techniques for determining electric vehicle charging locations include:
• [000135] a unique ID installed specifically for this purpose at a site; and [000136] • using GPS or other signal sources (cell, WiMAX, etc.) to establish a "soft" (estimated geographic) location, which is then refined based on user preferences and historical data (e.g., vehicles tend to be plugged-in at the owner's residence 124, not a neighbor's residence).
• GPS or other signal sources cell, WiMAX, etc.
• Fig. 9 shows an exemplary technique for resolving the physical location on the grid 114 of an electric resource 112 that is connected to the exemplary power aggregation system 100.
• the remote IPF module 134 obtains the Media Access Control (MAC) address 902 of the locally installed network modem or router (Internet access point) 302. The remote IPF module 134 then transmits this unique MAC identifier to the flow control server 106, which uses the identifier to resolve the location of the electric vehicle 200.
• MAC Media Access Control
• the remote IPF module 134 can also sometimes use the MAC addresses or other unique identifiers of other physically installed nearby equipment that can communicate with the remote IPF module 134, including a "smart" utility meter 904, a cable TV box 906, an RFID-based unit 908, or an exemplary ID unit 910 that is able to communicate with the remote IPF module 134.
• the ID unit 910 is described in more detail in Fig. 10.
• MAC addresses 902 do not always give information about the physical location of the associated piece of hardware, but in one implementation the flow control server 106 includes a tracking database 912 that relates MAC addresses or other identifiers with an associated physical location of the hardware. In this manner, a remote IPF module 134 and the flow control server 106 can find a mobile electric resource 112 wherever it connects to the power grid 114.
• Fig. 10 shows another exemplary technique for determining a physical location of a mobile electric resource 112 on the power grid 114.
• An exemplary ID unit 910 can be plugged into the grid 114 at or near a charging location. The operation of the ID unit 910 is as follows. A newly-connected electric resource 112 searches for locally connected resources by broadcasting a ping or message in the wireless reception area. In one implementation, the ID unit 910 responds 1002 to
• lee ⁇ hayes ot 509-3x42» 23 the ping and conveys a unique identifier 1004 of the ID unit 910 back to the electric resource 112.
• the remote IPF module 134 of the electric resource 112 then transmits the unique identifier 1004 to the flow control server 106, which determines the location of the ID unit 910 and by proxy, the exact or the approximate network location of the electric resource 112, depending on the size of the catchment area of the ID unit 910.
• the newly-connected electric resource 112 searches for locally connected resources by broadcasting a ping or message that includes the unique identifier 1006 of the electric resource 112.
• the ID unit 910 does not need to trust or reuse the wireless connection, and does not respond back to the remote IPF module 134 of the mobile electric resource 112, but responds 1008 directly to the flow control server 106 with a message that contains its own unique identifier 1004 and the unique identifier 1006 of the electric resource 112 that was received in the ping message.
• the central flow control server 106 then associates the unique identifier 1006 of the mobile electric resource 112 with a "connected" status and uses the other unique identifier 1004 of the ID unit 910 to determine or approximate the physical location of the electric resource 112. The physical location does not have to be approximate, if a particular ID unit 910 is associated with only one exact network location.
• the remote IPF module 134 learns that the ping is successful when it hears back from the flow control center 106 with confirmation.
• Such an exemplary ID unit 910 is particularly useful in situations in which the communications path between the electric resource 112 and the flow control server 106 is via a wireless connection that does not itself enable exact determination of network location.
• FIG. 11 shows another exemplary method 1100 and system 1102 for determining the location of a mobile electric resource 112 on the power grid 114.
• the electric resource 112 and the flow control server 106 conduct communications via a wireless signaling scheme, it is still desirable to determine the physical connection location during periods of connectedness with the grid 114.
• Wireless networks e.g., GSM, 802.11 , WiMax
• GSM Global System for Mobile communications
• 802.11 Wireless Local Area Network
• WiMax Wireless Local Area Network
• the remote IPF module 134 can acquire the unique identifiers of the available towers and relate these to the signal strength of each connection, as shown in database 1104.
• the remote IPF module 134 of the electric resource 112 transmits this information to the flow control server 106, where the information is combined with survey data, such as database 1106 so that a position inference engine 1108 can triangulate or otherwise infer the physical location of the connected electric vehicle 200.
• the IPF module 134 can use the signal strength readings to resolve the resource location directly, in which case the IPF module 134 transmits the location information instead of the signal strength information.
• the exemplary method 1100 includes acquiring (1110) the signal strength information; communicating (1112) the acquired signal strength information to the flow control server 106; and inferring (1114) the physical location using stored tower location information and the acquired signals from the electric resource 112.
• Fig. 12 shows a method 1200 and system 1202 for using signals from a global positioning satellite (GPS) system to determine a physical location of a mobile electric resource 112 on the power grid 114.
• GPS global positioning satellite
• Using GPS enables a remote IPF module 134 to resolve its physical location on the power network in a non-exact manner.
• This noisy location information from GPS is transmitted to the flow control server 106, which uses it with a survey information database 1204 to infer the location of the electric resource 112.
• the exemplary method 1200 includes acquiring (1206) the noisy position data; communicating (1208) the acquired noisy position data to the flow control server 106; and inferring (1210) the location using the stored survey information and the acquired data. . .
• the exemplary power aggregation system 100 supports the following functions and interactions:
• lee ⁇ hayesp-c s ⁇ se 25 services contracts via the web server 718 and contract manager 720.
• the system 100 resolves these requests into specific power requirements upon dispatch from the grid operator 404, and communicates these requirements to vehicle owners 408 by one of several communication techniques.
• the grid interaction manager 712 accepts real-time grid control signals 714 from grid operators 404 through a power-delivery device, and responds to these signals 714 by delivering power services from connected electric vehicles 200 to the grid 114.
• a transaction manager can report power services transactions stored in the database 716.
• a billing manager resolves these requests into specific credit or debit billing transactions. These transactions may be communicated to a grid operator's or utility's billing system for account reconciliation. The transactions may also be used to make payments directly to resource owners 408.
• the vehicle-resident remote IPF module 134 may include a communications manager to receive offers to provide power services, display them to the user and allow the user to respond to offers. Sometimes this type of advertising or contracting interaction can be carried out by the electric resource owner 408 conventionally connecting with the web server 718 of the flow control server 106.
• the exemplary power aggregation system 100 serves as an intermediary between vehicle owners 408 (individuals, fleets, etc.) and grid operators 404 (Independent System Operators (ISOs), Regional Transmission Operators (RTOs), utilities, etc.).
• ISOs Independent System Operators
• RTOs Regional Transmission Operators
• the load and storage electric resource 112 presented by a single plug-in electric vehicle 200 is not a substantial enough resource for an ISO or utility to consider controlling directly. However, by aggregating many electric vehicles 200 together, managing their load behavior, and exporting a simple control interface, the power aggregation system 100 provides services that are valuable to grid operators 404.
• lee ⁇ hayes * sa-x& ⁇ e 26 100 can provide incentives to owners in the form of payments, reduced charging costs, etc.
• the power aggregation system 100 can also make the control of vehicle charging and uploading power to the grid 114 automatic and nearly seamless to the vehicle owner 408, thereby making participation palatable.
• the power aggregation system 100 By placing remote IPF modules 134 in electric vehicles 200 that can measure attributes of power quality, the power aggregation system 100 enables a massively distributed sensor network for the power distribution grid 114. Attributes of power quality that the power aggregation system 100 can measure include frequency, voltage, power factor, harmonics, etc. Then, leveraging the communication infrastructure of the power aggregation system 100, including remote IPF modules 134, this sensed data can be reported in real time to the flow control server 106, where information is aggregated. Also, the information can be presented to the utility, or the power aggregation system 100 can directly correct undesirable grid conditions by controlling vehicle charge/power upload behavior of numerous electric vehicles 200, changing the load power factor, etc.
• the exemplary power aggregation system 100 can also provide Uninterruptible Power Supply (UPS) or backup power for a home/business, including interconnecting islanding circuitry.
• UPS Uninterruptible Power Supply
• the power aggregation system 100 allows electric resources 112 to flow power out of their batteries to the home (or business) to power some or all of the home's loads.
• Certain loads may be configured as key loads to keep "on" during a grid power-loss event. In such a scenario, it is important to manage islanding of the residence 124 from the grid 114.
• Such a system may include anti-islanding circuitry that has the ability to communicate with the electric vehicle 200, described further below as a smart breaker box.
• the ability of the remote IPF module 134 to communicate allows the electric vehicle 200 to know if providing power is safe, "safe” being defined as “safe for utility line workers as a result of the main breaker of the home being in a disconnected state.” If grid power drops, the smart breaker box disconnects from the grid and then contacts any electric vehicles 200 or other electric resources 112 participating locally, and requests them to start providing power. When grid power returns, the smart breaker box turns off the local power sources, and then reconnects.
• the meter owner 410 may give free charging.
• the vehicle owner 408 may pay at the time of charging (via credit card, account, etc.)
• a pre-established account may be settled automatically.
• the power aggregation system 100 records when electric vehicles 200 charge at locations that require payment, via vehicle IDs and location IDs, and via exemplary metering of time-annotated energy flow in/out of the vehicle. In these cases, the vehicle owner 408 is billed for energy used, and that energy is not charged to the facility's meter account owner 410 (so double-billing is avoided).
• a billing manager that performs automatic account settling can be integrated with the power utility, or can be implemented as a separate debit/credit system.
• An electrical charging station whether free or for pay, can be installed with a user interface that presents useful information to the user. Specifically, by collecting information about the grid 114, the vehicle state, and the preferences of the user, the station can present information such as the current electricity price, the estimated recharge cost, the estimated time until recharge, the estimated payment for uploading power to the grid 114 (either total or per hour), etc.
• the information acquisition engine 414 communicates with the electric vehicle 20 and with public and/or private data networks 722 to acquire the data used in calculating this information.
• the exemplary power aggregation system 100 also offers other features for the benefit of electric resource owners 408 (such as vehicle owners):
• the power aggregation system 100 as electric resource aggregator can earn a management fee (which may be some function of services provided), paid by the grid operator 404.
• grid operators 404 may pay for the power aggregation system 100, but operate the power aggregation system 100 themselves.
• the exemplary power aggregation system 100 can enable a number of desirable user features:
• Fig. 13 shows an exemplary method 1300 of power aggregation.
• the operations are summarized in individual blocks.
• the exemplary method 1300 may be performed by hardware, software, or combinations of
• communication is established with each of multiple electric resources connected to a power grid.
• a central flow control service can manage numerous intermittent connections with mobile electric vehicles, each of which may connect to the power grid at various locations.
• An in-vehicle remote agent connects each vehicle to the Internet when the vehicle connects to the power grid.
• the electric resources are individually signaled to provide power to or take power from the power grid.
• Fig. 14 is a flow diagram of an exemplary method of communicatively controlling an electric resource for power aggregation.
• the exemplary method 1400 may be performed by hardware, software, or combinations of hardware, software, firmware, etc., for example, by components of the exemplary intelligent power flow
• a control signal based in part upon the information is received from the service.
• the resource is controlled, e.g., to provide power to the power grid or to take power from the grid, i.e., for storage.
• bidirectional power flow of the electric device is measured, and used as part of the information associated with the electric resource that is communicated to the service at block 1404.
• Fig. 15 is a flow diagram of an exemplary method of metering bidirectional power of an electric resource.
• the exemplary method 1500 may be performed by hardware, software, or combinations of hardware, software, firmware, etc., for example, by components of the exemplary power flow meter 824.
• the measurements are sent to a service that aggregates power based in part on the measurements.
• Fig. 16 is a flow diagram of an exemplary method of determining an electric network location of an electric resource.
• the exemplary method 1600 may be performed by hardware, software, or combinations of hardware, software, firmware, etc., for example, by components of the exemplary power aggregation system 100.
• the physical location information may be derived from such sources as GPS signals or from the relative strength of cell tower signals as an indicator of their location. Or, the physical location information may derived by receiving a unique identifier associated with a nearby device, and finding the location associated with that unique identifier.
• an electric network location e.g., of an electric resource or its connection with the power grid, is determined from the physical location information.
• Fig. 17 is a flow diagram of an exemplary method of scheduling power aggregation. In the flow diagram, the operations are summarized in individual blocks.
• the exemplary method 1700 may be performed by hardware, software, or combinations of hardware, software, firmware, etc., for example, by components of the exemplary flow control server 106.
• constraints associated with individual electric resources are input.
• Fig. 18 is a flow diagram of an exemplary method of extending a user interface for power aggregation.
• the exemplary method 1800 may be performed by hardware, software, or combinations of hardware, software, firmware, etc., for example, by components of the exemplary power aggregation system 100.
• a user interface is associated with an electric resource.
• the user interface may displayed in, on, or near an electric resource, such as an
• lee ⁇ hayes t* ⁇ -KMZS 3 1 electric vehicle that includes an energy storage system, or the user interface may be displayed on a device associated with the owner of the electric resource, such as a cell phone or portable computer.
• power aggregation preferences and constraints are input via the user interface.
• a user may control a degree of participation of the electric resource in a power aggregation scenario via the user interface.
• the user may control the characteristics of such participation.
• Fig. 19 is a flow diagram of an exemplary method of gaining and maintaining electric vehicle owners in a power aggregation system.
• the exemplary method 1900 may be performed by hardware, software, or combinations of hardware, software, firmware, etc., for example, by components of the exemplary power aggregation system 100.
• an incentive is provided to each owner for participation in the power aggregation system.

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