Electrical energy management of exchanges between a plurality of residential networks

Patent metadata

Field	Value
Publication number	US-10978879-B2
Application number	US-201716471171-A
Country	US
Kind code	B2
Filing date	Dec 19, 2017
Priority date	Dec 19, 2016
Publication date	Apr 13, 2021
Grant date	Apr 13, 2021

Abstract

A method for exchanging electrical energy between a plurality of private electricity networks each comprising: a coordination unit, groups of electrical devices, and a plurality of relays arranged on the power supply lines of the devices. The method comprises: a) transmitting device status data from the devices to the coordination unit, b) establishing a set of electrical energy resources and requirements, c) comparing the set of resources and requirements with those of other private networks, d) allocating the requirements and resources to one another, e) ensuring at least part of the routing of electrical energy by means of digital certificates and instructions for drawing electrical energy that are sent to the relays, f) keeping record of each energy exchange in order to define a transaction between two private networks.

First claim

The invention claimed is:

1. A method for exchanging electrical energy between a plurality of private electricity networks connected to each other via at least one general electricity distribution network, each private network comprising:
a coordination unit coupled to a respective node located at the interface of the general network and the private network,
functional groups of at least one electrical device, each group being connected to the node via a corresponding line of the private network, and
a plurality of relays, each relay being arranged on a line,

the method comprising, for each private network:
a) transmitting, from each of the relays to the coordination unit, status data for the at least one electrical device of the corresponding group,
b) establishing a set of electrical energy resources and requirements internal to the private network, based on the status data,
c) comparing the set of internal resources and requirements with each other and with the external resources and requirements of the other private networks,
d) allocating an internal or external resource to each internal requirement, and an internal or external requirement to each internal resource, according to the results of the comparison,
e) ensuring at least part of the routing of electrical energy according to the allocations, this ensuring of the routing including:
e1) issuing a digital certificate for each internal resource injected into the general network,
e2) identifying the source of the external resources drawn via the general network, by means of the digital certificates, and
e3) transmitting instructions for drawing electrical energy on the private network, to the relays,

f) keeping record of each energy exchange in order to define a transaction between two private networks.

2. The method according to claim 1 , wherein a private network comprises at least one functional group for generating electrical energy and/or at least one functional group for storing electrical energy.

3. The method according to claim 2 , wherein a private network comprises a functional group for storing electrical energy, the status data of the functional group comprising load level information and/or information relating to an available amount of stored energy.

4. The method according to claim 1 , wherein the at least one general network comprises an alternating current network and a direct current network.

5. The method according to claim 1 , wherein at least one of the private networks comprises at least one alternating current line and at least one direct current line.

6. The method according to claim 1 , wherein some of the status data of the devices comprise requirements for an instantaneous or deferred startup of said devices and/or a priority index that is dependent on the instantaneous or deferred nature of the requirements.

7. The method according to claim 1 , wherein the coordination unit comprises a forecasting agent and an access to a data storage memory, the method further comprising:
a′) the establishing of a predictive model of the electrical energy resources or requirements of a functional group by the forecasting module according to the received status data, the set of resources and requirements being established on the basis of the predictive model stored in the memory.

8. The method according to claim 1 , wherein the coordination unit is equipped with a learning module and with access to a data storage means on which is stored a predictive model of the electrical energy resources or requirements of a functional group as a function of time, the method further comprising:
a″) updating of the predictive model by the learning module, based on the received status data, the set of resources and requirements being established on the basis of the updated predictive model.

9. The method according to claim 7 , wherein the predictive model is established and/or updated on the basis of the status data specific to each functional group, meteorological data, and pricing data.

10. The method according to claim 1 , wherein the coordination unit is equipped with an exchange module and with access to an exchange platform common to a plurality of the private networks, the comparison of the internal resources and requirements with the external resources and requirements being carried out via the exchange module on said exchange platform.

11. The method according to claim 1 , wherein the requirements and resources comprise:
data relating to the amount of electrical energy,

and at least one of the following:
data relating to the location of the electrical energy source, and
data relating to the type of electrical energy production.

12. The method according to claim 1 , wherein each digital certificate comprises an identifier of the node through which the electrical energy is injected into the general network.

13. An electric energy exchange system comprising a plurality of private electrical networks connected to each other via at least one general electricity distribution network, each private network comprising:
a coordination unit coupled to a respective node located at the interface of the general network and the private network,
functional groups of at least one electrical device, each group being connected to the node via a corresponding line of the private network, and
a plurality of relays, each relay being arranged on a line,

each relay being arranged for:
a) transmitting, from each of the relays to the coordination unit, status data for the at least one electrical device of the corresponding group,

each coordination unit being arranged for:
b) establishing a set of electrical energy resources and requirements internal to the private network, based on the status data,
c) comparing the set of internal resources and requirements with each other and with the external resources and requirements of the other private networks,
d) allocating an internal or external resource to each internal requirement, and an internal or external requirement to each internal resource, according to the results of the comparison,
e) ensuring at least part of the routing of electrical energy according to the allocations, this ensuring of the routing including:
e1) issuing a digital certificate for each internal resource injected into the general network,
e2) identifying the source of the external resources drawn via the general network, by means of the digital certificates, and
e3) transmitting instructions for drawing electrical energy on the private network, to the relays,

f) keeping record of each energy exchange in order to define a transaction between two private networks.

14. The system according to claim 13 , wherein the relays further comprise protection means capable of electrically isolating the group of devices from the node in the event of an electrical fault, such that the relays replace the protection devices when installing the system on an existing electrical structure.

15. A kit for installing the system according to claim 13 , comprising:
a first device able to be connected to a private network so as to form a coordination unit, and/or
at least one second device able to be connected to a line of a private network so as to form a relay.

16. A non-transitory computer-readable storage medium having stored thereon computer-executable instructions for carrying out the method of claim 1 .

Assignees

• Electricite De France

Inventors

• Pignier Daniel
• Menga David

Classifications

• H02J2105/55

  according to an economic condition, e.g. tariff-based load management · CPC title

• H02J2103/30

  Simulating, planning, modelling, reliability check or computer assisted design [CAD] of electric power networks · CPC title

• H02J2105/42

  Home appliances · CPC title

• H02J3/46 Primary

  Controlling the sharing of generated power between the generators, sources or networks · CPC title

• H02J3/008 Primary

  Circuit arrangements for power supply or distribution technologies responsive to energy trading · CPC title