METHOD AND DEVICE FOR MANAGING ELECTRICAL POWER CONSUMED IN A BUILDING

Abstract

The present invention relates to a method and device for managing the electrical power consumed by devices in a building comprising an intelligent consumption device and an energy manager, the electrical power being at least supplied by an electrical power supply network via a meter which measures the electrical power delivered by the electrical power supply network to the building and, when the electrical power is greater than that provided for the building, causes a tripping.According to the invention, the energy manager: - measures the electrical power supplied by the meter, - measures (E301) the electrical power consumed by the smart consumption device, - determines (E307) the remaining electrical power before a trip, taking into account a first predetermined electrical power value and the electrical power consumed by the smart consumption device, - selects (E308) at least one consumption device. Figure to be published with the abbreviation: Fig. 3.

Description

Title of the invention: METHOD AND DEVICE FOR MANAGING ELECTRICAL POWER CONSUMED IN A BUILDING technical field

[0001] The present invention relates to a method and device for managing the electrical power consumed in a building. STATE OF PRIOR ART

[0002] Conventionally, the electrical power consumed in a building comes largely from an electrical power supply network. Electrical power from the power supply network is delivered to the building via a meter that measures the power delivered by the power supply network to the building and, when the power exceeds the building's capacity, causes an interruption in the electrical power supply to the building. This interruption is called a circuit breaker trip.

[0003] New electrical energy-consuming devices are appearing in buildings. These devices are subsequently called intelligent energy-consuming devices.

[0004] Intelligent consumption devices are capable of increasing or decreasing their electrical power consumption according to the available electrical power before a circuit breaker occurs.

[0005] These intelligent consumption devices are, for example, electric vehicle charging stations or air conditioning systems or heat pumps.

[0006] Energy management systems exist for electric heating or hot water heating (boilers, heat pumps, pellet stoves, etc.). Electric energy management systems combine several functions to optimize a home's energy consumption. These systems ensure a constant and comfortable temperature throughout the day and in different areas of the home thanks to programming and load shedding functions. Energy management systems prove to be comprehensive and efficient devices for controlling heating or air conditioning systems while saving energy.

[0007] Energy managers thus control the operation of various electrical devices, ensuring that the total electrical power consumed is less than the electrical power planned for the building and taking into account the different hourly tariffs in order to reduce the financial cost of the billing carried out by the operator of the electricity supply network.

[0008] When a building includes an intelligent consumption device and an energy manager, problems arise.

[0009] For example, if the intelligent consumption device is informed that the total electrical power consumed by the building is less than the electrical power intended for the building, it can increase the electrical power delivered to the vehicle. The energy manager, seeing that the total power consumed by the building is almost equal to the electrical power intended for the building, cannot trigger the operation of electrical energy-consuming devices such as building heating systems, a hot water tank, air conditioning, or a heat pump.

[0010] This situation could be resolved by establishing a communication link between the smart consumption device and the energy manager, but the communication protocols used by smart consumption devices are varied and even proprietary. Therefore, this solution cannot be adopted for large-scale implementation.

[0011] Thus, the occupant of the building must make a choice between charging his electric vehicle with the electrical power of the building and not having adequate heating from the building or charging his electric vehicle with charging stations other than that of the building.

[0012] This situation is not optimal for the satisfaction and well-being of the building's occupant. Description of the invention

[0013] The invention aims to guarantee the comfort of an occupant of a building comprising an intelligent consumption device and an energy manager as well as a good distribution of the electrical power consumed.

[0014] According to a first aspect of the invention, the invention relates to a method for managing the electrical power consumed by devices in a building comprising an intelligent consumption device and an energy manager, the electrical power being supplied at least by an electrical power supply network via a meter that measures the electrical power delivered by the electrical power supply network to the building and, when the electrical power exceeds that intended for the building, causes an interruption in the electrical power supply to the building, the intelligent consumption device being capable of reducing its electrical power consumption or increasing its electrical power consumption according to the available electrical power before an interruption in the electrical power supply to the building occurs, the manager energy being capable of controlling consumption devices other than the intelligent consumption device; characterized in that the process comprises the steps, executed by the energy manager, of:

[0015] - measurement of the electrical power supplied by the meter,

[0016] - measurement of the electrical power consumed by the consumption device in intelligent,

[0017] - verification if a priority is associated with the smart consumption device and If no:

[0018] - determination of the remaining electrical power before an interruption of the supply of electrical energy to the building when the electrical power supplied by the meter is greater than that intended for the building, taking into account a first predetermined value of electrical power and the electrical power consumed by the smart consumption device,

[0019] - selection, from the determined remaining electrical power, of at least one consumption device among the different consumption devices of the intelligent consumption device,

[0020] - activation of at least one selected consumption device.

[0021] Correspondingly, the invention relates to an energy manager managing the electrical power consumed by devices in a building, the building further comprising an intelligent consumption device, the electrical power being at least supplied by an electrical power supply network via a meter which measures the electrical power delivered by the electrical power supply network to the building and, when the power is greater than that provided for the building, causes an interruption of the electrical power supply to the building, the intelligent consumption device being capable of reducing its electrical power consumption or increasing its electrical power consumption according to the available electrical power before an interruption of the electrical power supply to the building occurs,the energy manager being capable of controlling consumption devices different from the intelligent consumption device; characterized in that the energy manager comprises: ,

[0022] - means for measuring the electrical power supplied by the meter,

[0023] - means for measuring the electrical power consumed by the device smart consumption

[0024] - means of verifying whether a priority is associated with the device Smart consumption and, if not, activation:

[0025] - means for determining the remaining electrical power before an in interruption of the electrical power supply to the building when the electrical power supplied by the meter exceeds that intended for the building. taking into account a first predetermined value of electrical power and the electrical power consumed by the smart consumption device,

[0026] - selection means, based on the determined remaining electrical power, of at least one consumption device among the consumption devices different from the smart consumption device,

[0027] - means of activating at least one selected consumption device.

[0028] Thus, the present invention makes it possible to prioritize urgent energy uses in relation to the intelligent consumption device, such as heating, air conditioning, or domestic hot water, or a household appliance.

[0029] According to another aspect of the invention, the selection of the or each consumption device is carried out from a priority criterion associated with each consumption device.

[0030] Thus, the present invention makes it possible to best manage the electrical consumption of the building according to the interest of the user, in terms of cost and comfort, and the non-suspension of its supply of electrical energy by disjunction.

[0031] According to another aspect of the invention, the method further comprises the steps of:

[0032] - comparing the electrical power supplied by the meter to the power electrical wiring planned for the building,

[0033] - selection of at least one consumption device from among the devices of The consumption of the smart consumption device varies depending on whether the electrical power consumed in the building exceeds the power intended for the building.

[0034] - deactivation of at least one selected consumption device.

[0035] Thus, the present invention makes it possible to release power for the intelligent consumption device if there is a high energy demand for it.

[0036] According to another aspect of the invention, the smart consumption device is a charging station for an electric vehicle.

[0037] Thus, the present invention makes it possible to avoid the frequent case where all the electrical power is consumed by the charging of the electric vehicle, prohibiting other uses in the building.

[0038] According to another aspect of the invention, the method further comprises the step of determining whether the vehicle is at the end of charging or is not charging and the determination of the remaining electrical power before an interruption of the supply of electrical energy to the building when the electrical power supplied by the meter is greater than that provided for the building does not take into account the power consumed by the intelligent consumption device and the first predetermined value of energy and takes into account a second predetermined value.

[0039] Thus, the present invention makes it possible to avoid power overruns electricity consumed when the smart consumption device is not in operation and to use all available power before tripping. Brief description of the drawings

[0040] The features of the invention mentioned above, as well as others, will become clearer upon reading the following description of an exemplary embodiment, said description being made in relation to the accompanying drawings, among which:

[0041] [Fig. 1] represents a building in which the present invention is implemented;

[0042] [Fig.2] represents a block diagram of an energy manager according to the present invention;

[0043] [Fig.3] represents an example of an algorithm executed by the energy manager according to the present invention.

[0044] DETAILED DESCRIPTION OF EMBODIMENT METHODS

[0045] Fig. 1 represents a building in which the present invention is implemented.

[0046] The building Bat includes a Cmp meter, an intelligent consumption device Dint, an energy manager Cont and a plurality of consumption devices Disl, Dis2 and Dis3.

[0047] The Cmp meter measures the electrical power delivered by a Res electrical supply network to the building and, when the measured electrical power exceeds the building's capacity, triggers a circuit breaker trip. The trip is not immediate; it occurs after a few seconds or tens of seconds following an overconsumption measurement.

[0048] The intelligent consumption device Dint is for example a charging station for an electric vehicle Veh or an air conditioning system or a heat pump.

[0049] The energy manager Cont controls the operation of the consumption devices Disl, Dis2 and Dis3, ensuring that the electrical power delivered by the meter is less than the electrical power planned for the building and takes into account the different hourly tariffs in order to reduce the financial cost of the billing made by the operator of the electricity supply network.

[0050] The energy manager Cont is associated with means for obtaining the electrical power delivered by the meter as well as means for obtaining the electrical power consumed by the intelligent consumption device Dint.

[0051] The means of obtaining the electrical power delivered by the Cmp meter are, for example, a Senl current sensor.

[0052] The means of obtaining the electrical power consumed by the intelligent consumption device Dint are, for example, a current sensor Sen2.

[0053] Given the known value of the electrical voltage in the building, a measurement of Electrical power is equivalent to a measurement of current.

[0054] It should be noted here that other sources of electrical energy supply not shown in [Fig. 1], such as photovoltaic panels, wind turbines, or any renewable electricity supply system, can provide electrical energy to the building. The electrical energy delivered by these renewable energy sources is not measured by the Cmp electricity meter.

[0055] Figure [Fig. 2] represents a block diagram of an energy manager according to the present invention.

[0056] The Cont energy manager is adapted to perform, from one or more software modules, the steps of the algorithm as described with reference to [Fig.3].

[0057] The energy manager Cont includes a communication bus 201 to which are connected a processor 200, a non-volatile memory 202, a random access memory 203, optionally a human machine interface HMI 204, a control interface 206 allowing the control of the consumption devices Disl, Dis2 and Dis3, and a sensor interface 208 to which the sensors Senl and Sen2 are connected.

[0058] The human-machine interface 204 allows the occupant to indicate whether an intelligent consumption device Dint is present in the building and to associate priority levels with at least some of the consumption devices Disl, Dis2 and Dis3 and with the intelligent consumption device Dint.

[0059] The non-volatile memory 202 stores the software module(s) implementing the invention, as well as the data enabling the implementation of the algorithm as described with reference to [Fig.3].

[0060] More generally, the programs according to the present invention are stored in a storage means. This storage means is readable by the microprocessor 200. This storage means may or may not be integrated into the Cont energy manager, and may be removable.

[0061] When the Cont energy manager is powered on, the software module(s) according to the present invention is or are transferred into the RAM 203 which then contains the executable code according to the present invention as well as the data necessary for the implementation of the invention.

[0062] Thus, all or part of the algorithm and steps described herein can be implemented in software form by executing a set of instructions by a programmable machine, such as a DSP (Digital Signal Processor) or a microcontroller or processor. All or part of the algorithm and steps described herein can also be implemented in hardware form by a machine or component (chip), such as an FPGA (Field-Programmable Gate Array) or an ASIC (Application-Specific Integrated Circuit). Thus, the Cont energy manager includes adapted and configured electronic circuitry. to implement the behaviors, algorithm and steps described here.

[0063] Figure 3 represents an example of an algorithm executed by the energy manager according to the present invention.

[0064] At step E300, the energy manager Cont enters a waiting loop of a predetermined duration. The predetermined duration is defined, for example, according to the electrical installation of building Bat. The predetermined duration is, for example, between 0.1 seconds and 60 seconds.

[0065] In the next step E301, the energy manager Cont commands the acquisition of a measurement of the electrical power supplied by the electricity meter Cmp. The measurement of the electrical power supplied by the electricity meter Cmp Itot is, for example, carried out via the current sensor Sensl or obtained via a communication link from the Cmp meter.

[0066] At step E302, the energy manager Cont checks whether the electrical power supplied by the Cmp Itot electric meter is greater than the Imax power planned for the building by the operator of the electrical energy supply network.

[0067] If yes, the energy manager Cont goes to step E303 and if no, the energy manager Cont goes to step E305.

[0068] At step E303, the energy manager Cont selects at least one consumption device from among the consumption devices different from the smart consumption device.

[0069] The selection of the consumption device or devices is, for example, carried out based on a priority criterion associated with each consumption device.

[0070] The priority criterion is for example defined by the building occupant from the human machine interface HMI 204.

[0071] At step E304, the Cont energy manager deactivates the selected consumption device(s) and returns to step E300.

[0072] At step E305, the energy manager Cont commands the intelligent consumption device Dint to obtain a measurement of the power consumed. The measurement of the power consumed Ich in the building is, for example, carried out via the current sensor Sens2.

[0073] At step E306, the energy manager Cont checks whether the intelligent consumption device Dint has the highest priority criterion among the consumption devices.

[0074] If yes, the energy manager Cont returns to step E300 and if no, the energy manager Cont goes to step E307.

[0075] In step E307, the energy manager Cont determines the remaining electrical power before an interruption of the electrical power supply to the building when the electrical power supplied by the meter Cmp is greater than that planned for the building taking into account a first predetermined power value and the electrical power consumed by the intelligent consumption device.

[0076] The Cont energy manager determines the remaining power according to the following formula:

[0077] Idispo=Imax-Tot+Ich-Ichmin.

[0078] Where Ichmin is the first predetermined power value.

[0079] Icchmin is for example equal to 6 or 8 Amperes or is defined by the occupant of the building.

[0080] Alternatively, the energy manager Cont determines whether the vehicle Veh is at the end of charging or is not charging.

[0081] The vehicle Veh is not charging when the power of the smart consumption device is equal to a second predetermined value. This second predetermined value is equal to the power consumed by the smart consumption device without the vehicle Veh being connected to it. For example, the building occupant determines this second predetermined value using the human-machine interface to indicate that the vehicle Veh is not charging. The energy manager Cont then obtains a measurement of the power consumed by the smart consumption device and assigns this measurement as the second predetermined value.

[0082] The Veh vehicle is at the end of charging when the power consumed by the intelligent consumption device decreases over time to reach a value close to the sum of the second predetermined value.

[0083] According to this variant, the determination of the remaining electrical power does not take into account the power of the intelligent consumption device and the first predetermined energy value and takes into account the second predetermined value.

[0084] At step E308, the energy manager Cont selects, from the determined remaining power, at least one consumption device from among the consumption devices different from the intelligent consumption device.

[0085] The selection is carried out by comparing the remaining power with the different energies consumed by the consumption devices Disl, Dis2 and Dis3 when they are activated.

[0086] For example, the selection is carried out by taking into account a priority criterion associated with each consumption device Disl, Dis2 and Dis3.

[0087] At step E309, the energy manager Cont commands the activation of at least one selected consumption device.

[0088] Once this step is completed, the Cont energy manager returns to step E300.

[0089] Of course, the present invention is by no means limited to embodiments described here, but on the contrary encompasses any variant within the reach of a person skilled in the art.

Claims

Demands

1. A method for managing the electrical power consumed by devices in a building comprising an intelligent consumption device and an energy manager, the electrical power being at least supplied by an electrical power supply network via a meter that measures the electrical power delivered by the electrical power supply network to the building and, when the electrical power is greater than that intended for the building, causes an interruption in the supply of electrical power to the building, the intelligent consumption device being capable of reducing its electrical power consumption or increasing its electrical power consumption according to the available electrical power before an interruption in the supply of electrical power to the building occurs,the energy manager being capable of controlling consumption devices other than the smart consumption device; characterized in that the method comprises the steps, executed by the energy manager, of: - measuring the electrical power supplied by the meter, - measuring (E301) the electrical power consumed by the smart consumption device, - verification (E306) if a priority is associated with the smart consumption device and, if not: - determination (E307) of the remaining electrical power before an interruption of the supply of electrical energy to the building when the electrical power supplied by the meter is greater than that intended for the building, taking into account a first predetermined value of electrical power and the electrical power consumed by the smart consumption device, - selection, (E308) from the determined remaining electrical power, of at least one consumption device from among the consumption devices other than the smart consumption device, - activation (E309) of at least one selected consumption device.

2. A method according to claim 1, characterized in that the selection of the consumption device or devices is carried out based on a priority criterion associated with each consumption device.

3. A method according to claim 1 or 2, characterized in that the method further comprises the steps of: - comparing the electrical power supplied by the meter to the electrical power intended for the building, - selecting at least one consumption device from among the consumption devices other than the intelligent consumption device if the electrical power consumed in the building is greater than the power intended for the building, - deactivating at least one selected consumption device.

4. A method according to any one of claims 1 to 3, characterized in that the intelligent consumption device is an electric vehicle charging station.

5. A method according to claim 4, characterized in that the method further comprises the step of determining whether the vehicle is at the end of charging or is not charging and in that the determination of the remaining electrical power before an interruption of the supply of electrical energy to the building when the electrical power supplied by the meter is greater than that provided for the building does not take into account the power consumed by the intelligent consumption device and the first predetermined value of energy and takes into account a second predetermined value.

6. Energy manager managing the electrical power consumed by devices in a building, the building further comprising an intelligent consumption device, the electrical power being at least supplied by an electrical power supply network via a meter which measures the electrical power delivered by the electrical power supply network to the building and, when the power is greater than that provided for the building, causes an interruption in the supply of electrical power to the building, the intelligent consumption device being capable of reducing its electrical power consumption or increasing its electrical power consumption according to the available electrical power before an interruption in the supply of electrical power to the building occurs,the energy manager being capable of controlling consumption devices different from the intelligent consumption device; characterized in that the energy manager comprises: - means for measuring the electrical power supplied by the, counter, - means of measuring the electrical power consumed by the smart consumption device, - means of verifying whether a priority is associated with the smart consumption device and, if not, activating it: - means of determining the remaining electrical power before an interruption of the electrical energy supply to the building when the electrical power supplied by the meter is greater than that planned for the building, taking into account a first predetermined value of electrical power and the electrical power consumed by the intelligent consumption device, - means of selecting, based on the determined remaining electrical power, at least one consumption device from among the consumption devices other than the intelligent consumption device, - means of activating at least one selected consumption device.

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