Classifications

• • 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
• • 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
  • H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
  • H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
• • 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
  • H02J3/381—Dispersed generators
• • 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
  • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
  • H02J2300/20—The dispersed energy generation being of renewable origin
  • H02J2300/22—The renewable source being solar energy
  • H02J2300/24—The renewable source being solar energy of photovoltaic origin

Definitions

• the invention relates to an electrical energy distribution system as well as a method using the system according to the invention.
• the invention also relates to a computer implemented method and a computer program.
• Smart grids or intelligent networks are energy distribution systems that aim to optimize energy consumption between several buildings. For this, part of the energy needs are supplied by a local energy source.
• Smart grids have in particular been developed to overcome the difficulties of supplying energy to certain regions of the world. Even today, 17% of the world's population lives without access to electricity. Thanks to smart grids, solutions can be implemented for the electrification of these regions.
• a smart grid is commonly made up of a renewable energy generator, an energy generator using fossil fuel, energy storage means, and a local distribution network.
• the homes, generators and the storage solution are connected to the local network.
• the energy supplied to homes is preferably energy from the generator using renewable energy, for example solar panels. If this supply is not sufficient to cover the energy needs, the generator using fossil fuels can avoid power cuts.
• An object of the present invention is therefore to solve the problems described above, and more particularly to provide a distribution system and method. energy to optimize the management of the energy generated by the energy source of each building to avoid losses.
• Another object of the present invention is to provide a system which minimizes the consumption of electrical energy from the public grid.
• the present invention relates to an electrical energy distribution system between buildings to manage the distribution of electrical energy between at least two separate buildings,
• each home network being connected to a local network, said local network being connected to a public network,
• the system comprising in each building o a domestic energy source to supply the domestic network, o an inverter connected to said energy source to convert the DC current generated by said energy source into AC current, o a battery for store domestic energy and distribute it in the home network, the battery being powered by the inverter, and at least one item of equipment operating using energy from the home network, the system comprising on the one hand a home module in each building and on the other hand a central module connected to each domestic module,
• said domestic module making it possible to regulate the flow of energy circulating in the domestic network between the source, the inverter, the battery and said equipment as a function of the ratio defined by the available energy Ed and the energy consumed Ec on said network domestic, said domestic module being configured to calculate said ratio and transmit said ratio to the central module,
• each domestic module regulates the energy flow of a domestic network.
• the domestic module distributes the available energy to network equipment.
• the domestic module calculates the Ed / Ec ratio and transmits this information to the central module.
• the buildings more precisely the home networks of the buildings, are connected to a local network.
• the local network is linked to a public network.
• the central module manages the energy supply to each home network. For example, the central module controls the energy source and the battery of each building. If a domestic module communicates an energy deficit to the central module, the central module carries out the necessary actions to overcome this deficit. For example, an energy deficit is defined by an Ed / Ec ratio less than zero. In other words, the central module uses the information provided by the home modules to regulate the flow of energy between the local network and the home networks.
• the central module regulates the flow of energy between the home networks. If a network has an energy deficit and another domestic network is on the contrary in excess, the central module allows a transfer between the excess domestic network and the deficit domestic network.
• the central module controls the transfer of excess energy to the deficit network. Energy transfer can take place between home networks. The transfer can take place between batteries, that is, between the battery of a home network with excess energy and the battery of the home network with a deficit.
• the transfer can take place between the battery of an excess network and equipment connected to a deficient home network.
• the transfer can take place between the power source of an excess grid and the battery of a deficit grid.
• the home network there are 3 levels of networks: the home network, the local network and the public network.
• the buildings of the same local network are connected and can pool the available energy produced by each of the buildings. If one of the buildings (or buildings) of the local network has an energy deficit, the other buildings of the local network can fill this deficit thanks to the local network without having to resort to energy from the public network. If at least one of the buildings is in excess, the deficit can be made up without using energy from the public grid.
• the present invention makes it possible to use the energy available in the local network to meet the needs of the domestic networks connected to the network. local.
• this makes it possible to obtain a self-sufficient energy system, in particular a self-sufficient system thanks to the optimization of the self-consumption of the energy produced in the local network.
• This characteristic is not described in the energy distribution or microgrid systems known from the prior art.
• this makes it possible to compensate for power cuts in the event of a power failure in the public network.
• said central module makes it possible to regulate the flow of energy between the local network and the public network, so that, when the local network has an energy deficit, said central module allows an input of energy from the public grid to the local grid.
• said central module makes it possible to regulate the flow of energy between the local network and the public network, so that, when the local network is in excess of energy, said central module allows an output energy from the local network to the public network.
• the central module activates the transfer of energy between the public network and the local network then controls the domestic module concerned to introduce the energy in the home network in deficit. Conversely, when the local network is in excess of energy, the control module can order a transfer of energy from the local network to the public network. This solves the problems of storing energy produced by energy sources in buildings in home networks. The present invention therefore makes it possible to produce energy.
• the household energy source is a renewable energy source, for example selected from solar, wind, geothermal, biomass, preferably photovoltaic panels.
• said batteries are chosen from lithium batteries, lead batteries, preferably lithium batteries.
• the equipment item is chosen from a list comprising a heat pump, an electric vehicle, a light, a blind, a ventilation system, a heating and / or cooling system, multimedia equipment television or computer type, an alarm type security device, or a combination of these devices.
• the equipment is connected to controlled outlets.
• the devices are interconnected via a communication bus or via electrical outlets.
• the present invention comprises a heat pump of smartgrid ready type, in other words a heat pump controllable by a central module which controls its operation, in particular the operating time slot.
• said batteries have capacities of between 10 and 100 kWh.
• said buildings are chosen from individual houses, buildings comprising several dwellings.
• the constituent elements of the system communicate with each other using one or more protocols.
• each domestic module uses a home automation protocol, for example KNX, for communication between the devices.
• KNX home automation protocol
• the present invention uses a particular protocol to ensure communication between technical equipment such as for example ventilation, heating, water or energy meter, for example a ModBUS protocol.
• the protocols are all integrated into the domestic module which controls the equipment.
• information relating to equipment, in particular their energy requirements is centralized at the level of the domestic module.
• the home module communicates this information to the central module which regulates the flow of energy in the local network between buildings based on said information.
• the present invention also relates to a method of distributing electrical energy between buildings to manage the distribution of electrical energy between at least two separate buildings, the method comprising:
• the central module configures the central module according to the Ed / Ec ratios of each domestic module to allow regulation of energy flows between the network of each building and the local network, so that, for each building, o iv) a) when Ed is greater than Ec, the central module activates the domestic module of the building to allow an exit of the excess energy from the home network from said building to the local network; or o iv) b) when Ed is equal to Ec, the central module controls the domestic module of the building to block the flow of energy between the domestic network of said building and the local network; or iv) c) when Ed is less than Ec, the central module activates the building's domestic management module to allow energy input from the local network to the domestic network of said energy-deficient building;
• the excess energy from a home network is used to charge the battery of a home network in deficit or to power a home network in deficit.
• excess energy from a home network is fed into the local network and then into the public network.
• the central module is configured to activate the input of electrical energy into at least one of the domestic networks in deficit over a predetermined time slot.
• the central module is configured to compensate for a deficient home network, for example charging a deficient battery, as a function of:
• the central module when a home network is in deficit, the central module is configured to prioritize use of excess energy from another home network. If the energy available on the local network is not available in sufficient quantity to compensate for the deficit, the central module uses the public network to supplement the energy supply. [041]
• the invention also relates to a computer-implemented method, in which the method uses a computer program to execute the steps of the method according to the invention.
• the invention also relates to a computer program comprising instructions which, when the program is executed by a computer, make it possible to control a system according to the invention.
• said program is arranged to control the central module so as to regulate the flow of energy between buildings and allow an exchange of energy between an excess home network and a deficit home network.
• the computer program can be stored in the central module.
• the program can be stored on a server or cloud.
• the terms "home module” define a module for managing the electrical energy of the home network.
• the household module can be composed of a smart electricity meter and equipment (s) for communication with the renewable energy production and storage system.
• the terms "central module” define a module for managing the electrical energy of the local network.
• the domestic module can be an EMS for Energy Management System.
• the central module can be an EMS consisting of a PLC / computer, one or more communication modules and a smart electricity meter.
• FIG. 2 shows three scenarios at the level of a set of buildings
• Figures 1 a, b, c represent three possible situations for each building 2a, b, c of a system 1 a, b, c according to the invention.
• Figures 1 a, b, c each represent a building 2a, b, c of a system, the system not being fully illustrated in Figure 1.
• the building 2a, b, c comprises a home network 3a, b, c connected to a local network 4a, b, c, said local network 4a, b, c being connected to a public network 5a, b, c.
• Each building 2a, b, c includes photovoltaic panels 7a, b, c as an energy source to supply the domestic network 3a, b, c.
• the home network 3a, b, c includes a lithium battery 7a, b, c connected to an inverter 8 a, b, c to supply electrical energy to the home network 3a, b, c.
• the energy from the domestic network 3a, b, c is used to supply equipment 9a, b, c, for example a heat pump 10a, b, c.
• Each building 2a, b, c further comprises a domestic module 1 1 a, b, c to regulate the flow of energy circulating in the domestic network 3a, b, c.
• Each domestic module is connected to a central module 12 a, b, c which controls the supply of electrical energy to the domestic network 3a, b, c.
• the building 2a is in an ideal case of self-sufficiency because there is no energy exchange necessary between the home network 3a and the local network 4a.
• the available energy Ed of the solar panels 6a and in the battery 7a corresponds to the energy consumed Ec of the equipment of the building 2a.
• the central module 12a blocks the flow of energy between the home network 3a and the local network 4a.
• the domestic network 3b is thus surplus.
• the central module 12b allows an exit of the excess energy from the domestic network 3b to the local network 3c. This excess energy can be used to compensate a network domestic loss of the local network. If all of the domestic networks are self-sufficient or also in excess, the central module 12b can make it possible to introduce excess energy into the public network 5b.
• the domestic network 3c is thus in deficit.
• the central module 12c allows an entry of energy from the local network 4c. This energy introduced into the home network 3c can come from a home network in excess of the local network. If all the domestic networks are self-sufficient or also in deficit, the central module 12c introduces energy from the public network 5c into the local network 4c and then into the domestic network 3c to meet the energy needs of the domestic network 3c.
• Figures 2a, b, c represent three possible situations for a system 100a, b, c according to the invention.
• Each system 100a, b, c comprises three buildings 102a, b, c whose home networks (not shown in Figures 2a, b, c) are connected to a local network 104a, b, c, said local network 104a , b, c being connected to a public network 105a, b, c.
• Each system 100a, b, c also comprises a central module 1 12a, b, c.
• the system 100a is self-sufficient, in other words each building 102a has a zero Ed / Ec ratio.
• the needs of the system 100a are met only by the energy available on the local network 104a.
• the energy deficit of one building is filled by the excess energy of another building.
• the local network 104c of the system 100c has a deficit balance of -1 (-3-5 + 7-1).
• the central module 1 12c thus allows an energy input from the public network 105c to fill the energy deficit of the system 100c.
• the local network 104c does not have sufficient energy resources to cover the needs of the local network 104c, that is to say of the home networks connected to the local network 104c.
• the 100c system is configured to allow an energy input from the public network 105c to avoid the power cut.
• the local network comprises 6 buildings, the buildings being residential villas.
• the applicant observed the following data:
• each building is equipped with a device, for example a computer, a tablet or a smartphone.
• a program for example software, is installed on the device, the program making it possible to monitor the consumption of the house in real time on the three networks, namely the home network, the local network and the public network.
• the program can make it possible to know in real time the origin of the energy consumed by the building (that is to say by the building equipment): energy from the domestic network, from the network local or public network.
• the program can also provide information on the energy flows between the various buildings on the local network.
• the program can also make it possible to know the energy flows between the local network and the public network.
• the program installed on each device is preferably connected to the central module, in particular to the program which controls the central module. This allows the user of the device to have real-time access to system data, for example the origin of energy, energy flows, the energy ratio of buildings connected to the local network.
• the central module program preferably records the consumption and production data of each building in the local network. This makes it possible, for example, to define or adjust energy strategies based on the data collected, for example for the source of energy to be used to meet the needs of a building at a given time.

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• 2019
  • 2019-04-25 EP EP19170980.7A patent/EP3731363A1/de not_active Withdrawn
• 2020
  • 2020-04-24 WO PCT/EP2020/061415 patent/WO2020216881A1/fr unknown
  • 2020-04-24 CA CA3137776A patent/CA3137776A1/fr active Pending
  • 2020-04-24 US US17/606,148 patent/US11646582B2/en active Active
  • 2020-04-24 EP EP20719653.6A patent/EP3959791A1/de not_active Withdrawn

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