Apparatus and method for privacy-driven moderation of metering data

• US 9,292,803 B2
• Filed: 04/28/2011
• Issued: 03/22/2016
• Est. Priority Date: 04/28/2010
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Kalogridis, Georgios, Efthymiou, Costas
• Primary Examiner(s): Lo, Kenneth M
• Assistant Examiner(s): CHANG, SUNRAY
• Application Number:
  US13/096,272
• Publication Number:
  US 20110270453A1
• Time in Patent Office: 1,790 Days
• US Class Current: 1/1
• CPC Class Codes: G01D 2204/24 Identification of individual loads, e.g. by analysing current/voltage waveforms
• CPC Class Codes: G06Q 10/00 Administration; Management
• CPC Class Codes: G06Q 10/0631 Resource planning, allocation, distributing or scheduling for enterprises or organisations
• CPC Class Codes: H02J 13/00004 characterised by the power network being locally controlled
• CPC Class Codes: H02J 13/00017 using optical fiber
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: H02J 2310/12 The local stationary network supplying a household or a building
• CPC Class Codes: H02J 2310/70 Load identification
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: H02J 3/322 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
• CPC Class Codes: H04L 63/0421 Anonymous communication, i.e. the party's identifiers are hidden from the other party or parties, e.g. using an anonymizer
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/30 Smart metering, e.g. specially adapted for remote reading
• CPC Class Codes: Y04S 40/20 Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Abstract

According to an embodiment there is provided a system comprising an input for connecting the system to a power supply, at least one further power source, at least one power consumer, an identifying unit arranged to identify, based on information originating from within the system, an ongoing and/or future power consumption event by the at least one power consumer and a power router that comprises a controller and that is arranged to route power to the power consumer from at least one of the power supply and the at least one further power source, the power router storing rules that define at least part of the routing operation of the router. The power router is arranged to route power to an power consumer in accordance with the rules so that at least a part of the power consumed by the power consumer during the power consumption event is provided by the at least one power source, rather than through the input, in response to the identifying unit identifying a power consumption event.

Claims

1. A system comprising:

an input for connecting the system to a power supply via a smart meter such that the system is located on the consumer side of the smart meter;

at least one further power source;

at least one power consumer being a building or house or part of a building or house;

an identifying unit arranged to identify, based on information originating from within the system, an ongoing and/or future power consumption event by the at least one power consumer;

a power router comprising a controller and arranged to route power to the power consumer from at least one of the power supply and the at least one further power source, the power router storing rules that define at least part of the routing operation of the router; and

a load shape generator arranged to determine a target load shape that is in conformity with one or more of the stored rules for use with a scheduled and/or a currently ongoing power consumption event, whereby the power consumption event has a load signature;

wherein the power router is arranged to route power to said power consumer in accordance with the stored rules so that at least a part of the power consumed by the power consumer during the power consumption event is provided by the at least one power source, rather than through the input, in response to the identifying unit identifying said power consumption event, whereby a modified load signature is generated based on the load signature of said power consumption event in accordance with stored privacy rules by said power router enforcing the target load shape prior to the modified load signature being reported by the smart meter.

2. The system according to claim 1, wherein the power router further comprises a routing switch, the routing switch connected to the at least one power consumer, to the at least one further power source and to the input for routing of power to the at least one power consumer from one or more of the at least one further power source and the input, the processor arranged to control the routing switch in accordance with said stored rules.

3. The system according to claim 1, wherein the controller is arranged to control the power router so that the load signature of the power consumption event is modified through the use of power from at least one of the power sources, so that the load signature, as seen at the input is one or more of smoothed, shortened in duration, lengthened in duration and split into several distinct power consumption events, randomly scrambled, when compared to an actual load signature of the power consumption event.

4. The system according to claim 1, wherein one or more of the at least one further power source and/or of the at least one power consumer is a power storage devices, wherein the controller is further arranged to control the power router to cause the router to, during or after the end of the power consumption event, route power to a power storage device that is known to have provided power to a power consumer during a power consumption event.

5. The system according to claim 1, wherein the controller is arranged to control the power router to route power to a power consumer so that the load signature of the power consumption event, as seen at the input one or both of:

differs from a typical load signature of the power consumer in at least one of an amplitude or intensity of the power consumed, a total amount of power consumed, a slope of an edge of the load signature, a duration of power consumption and a timing of the power consumption event; and

corresponds to a typical load signature of a power consumer other than the power consumer consuming power in the power consumption event.

6. The system according to claim 1, wherein the stored rules comprise at least one of:

a rule defining one or more power consumers and/or types of power consumption events for which a load signature, as seen at the input, is to be modified,

a ranking of different power consumers and/or types of power consumption events, the ranking determining an importance of modifying a load signature associated with the ranked consumer or event type,

rules specifying preferred times for power consumption through the input and/or for reducing overall energy consumption, and

rules specifying power consumption preferences for one or more of the at least one further power sources.

7. The system according to claim 1, wherein the stored rules comprise:

a first rule defining one or more power consumers and/or types of power consumption events for which a load signature, as seen at the input, is to be modified, wherein the controller is arranged to determine, based on the stored rules and for an identified power consumption event, whether or not the power router should route power to a power consumer that consumes power in the power consumption event; and

/or

a second rule specifying preferred times for power consumption through the input and wherein the controller is arranged to determine, based on the second rule, whether the power router should route power to a power consumer that consumes power in the power consumption event through the input.

8. The system according to claim 1, wherein the stored rules comprise a ranking of power consumers and/or different types of power consumption events, the ranking determining an importance of modifying a load signature associated with the ranked power consumer or event type;

wherein the controller is arranged to determine, based on the ranking and on information of two known power consumption events, whether the power router should prioritize the routing of power to one of the two power consumers that consume power in the known power consumption events.

9. The system according to claim 1, wherein the controller further comprises routing scheduler, the routing scheduler arranged to determine fraction of a total amount of power to be routed to a power consumer from one or more of the at least one further power source in scheduled future power consumption events.

10. An apparatus, wherein:

the apparatus is on the consumer side of a smart meter and arranged to control the routing of power on the consumer side of the smart meter in accordance with predetermined rules, and

the apparatus comprises;

an output for connection to and communicating with a power router;

an input for receiving connection information of power sources and power consumers that are located on the consumer side of the smart meter and that are connected to the power router;

a memory arranged to store the connection information;

an identifying unit arranged to identify an ongoing and/or future power consumption event by a said power consumer;

a load shape generator arranged to determine a target load shape that is in conformity with one or more of the stored predetermined rules for use with a scheduled and/or a currently ongoing power consumption event, and

a controller arranged to generate, based on said predetermined rules and in response to the identifying unit identifying said power consumption event, control signals for transmission to the power router, wherein the control signals are for controlling the power router such that at least a part of the power consumed by the said power consumer during the power consumption event is routed to the said power consumer from at least one of the power sources located on the consumer side of the smart meter, whereby a load signature of the said power consumption event is then modified in accordance with stored privacy rules by said power router to enforce the target load shape prior to the modified load signature being reported by the smart meter;

wherein said predetermined rules comprise at least one rule defining one or more power consumers and/or types of power consumption events for which power is to be provided from a said at least one power sources located on the consumer side of the smart meter and a ranking of different power consumers and/or types of power consumption events, the ranking determining an importance of modifying a load signature associated with the ranked consumer or event type.

11. A method of routing power within an end consumer of power supplied through a power grid,

wherein the method is performed on a consumer side of a smart meter and comprises:

identifying, based on information originating from within the system, an ongoing and/or future power consumption event by at least one power consumer of the end user,

in response to identifying said power consumption event;

determining a target load shape that is in conformity with one or more stored rules for use with a scheduled and/or a currently ongoing power consumption event, and

determining, based on the stored rules and using a controller of a power router, a routing arrangement for routing at least part of the power consumed by the at least one power consumer during the power consumption event to the at least one power consumer from at least one further power source of the end consumer, whereby a load signature of the said power consumption event is then modified in accordance with stored privacy rules by said power router to enforce the target load shape prior to the modified load signature being reported by the smart meter; and

using the power router to route power to the power consumer in accordance with the determined routing arrangement.

12. The method according to claim 11, wherein identifying the power consumption event comprises one or more of:

receiving notifications of ongoing and/or future power consumption events from a power consumer of the end consumer;

using a sensor to detect a change in current power consumption at the end consumer.

13. The method according to claim 11, further comprising routing power to a power storage device during or after the end of the power consumption event by the power consumer to re-charge the power storage device.

14. The method according to claim 11, further comprising varying a portion of the energy provided to the power consumer from one or more further power sources and/or from the power grid over time.

15. The method according to claim 11, further comprising receiving a command from a smart meter connected to the power grid, or through the smart meter, and controlling power routing within the end consumer in accordance with the command.

16. The method according to claim 11, further comprising receiving data from a further power source and/or a power consumer of the end consumer, modifying received data in accordance with the stored rules transmitting the modified data.

17. The method according to claim 11, further comprising determining, based on stored rules defining power consumers and/or the type of power consumption events for which power routing is to be modified in a manner that influences a load signature, as seen at the power grid, created by the power consumption event, whether for an identified power consumption event the power routing should be modified.