DE102020205261A1 - Method and device for recording electrical consumption and generation - Google Patents

Abstract

The invention relates to a method for recording electrical consumption and generation, whereby a power flow is recorded bidirectionally and precisely in time on an electrical energy store (10) by means of a power flow sensor system (5), with at least one quality property (22-x) of a respective power flow being determined or maintained precisely in time is, with the amounts of energy (21-x) stored in the electrical energy store (10) being determined on the basis of a respective power flow, the particular amounts of energy (21-x) being assigned or assigned the corresponding quality property (22-x), and wherein the respectively assigned quality properties (22-x) are provided. The invention also relates to a device (1) for recording electrical consumption and generation.

Description

The invention relates to a method and a device for recording electrical consumption and generation.

In addition to a central electrical energy source from a supplier, local electrical generators, such as block-type thermal power stations (CHPs) and / or photovoltaic systems, have also increasingly been used in house networks in recent years. In addition, electrical energy storage devices, such as batteries, are increasingly being used to store electrical energy locally. The increase in the number of producers and the use of batteries make energy management more demanding. Furthermore, billing with the supplier becomes more complex due to the possibility of feeding electrical energy from a house network into the supply network, and the associated legal requirements (e.g. sustainable energy generation, billing of surcharges according to the EEG law, etc.).

From the DE 10 2010 002 914 A1 a method for recording electrical consumption and generation in an energy management network is known.

The invention is based on the object of improving a method and a device for recording electrical consumption and generation.

The object is achieved according to the invention by a method with the features of claim 1 and a device with the features of claim 8. Advantageous refinements of the invention emerge from the subclaims.

In particular, a method for recording electrical consumption and generation is made available, whereby a power flow is recorded bidirectionally and precisely in time on an electrical energy store by means of a power flow sensor system, with at least one quality property of a respective power flow being determined or obtained precisely in time, with amounts of energy stored in the electrical energy store are determined on the basis of a respective power flow, the specific energy quantities being assigned or being assigned to the respective corresponding quality properties, and the quality properties being provided in each case.

Furthermore, in particular, a device for recording electrical consumption and generation is created, comprising at least one input interface, set up to contact a signal and / or data line from at least one power flow sensor system, at least on an electrical energy store, and a computing device, the computing device being set up to receive from the power flow sensors on the electrical energy storage device bidirectionally and precisely in time to receive and transmit power flows, to determine or maintain at least one quality property of a respective power flow with precise timing, and to determine the amounts of energy stored in the electrical energy storage device on the basis of a respective power flow, and to determine the respective amounts of energy assign and provide the corresponding quality property.

The method and the device make it possible to link amounts of energy stored in the energy store with corresponding quality properties. For this purpose, the respective corresponding quality property is assigned to each amount of energy with one, in particular different, quality property. For example, the quality property can be stored in a memory of the computing device in the form of quality property information. Power flows flowing into or out of the energy store are determined by means of a power flow sensor, and the respective at least one quality property is determined or obtained for these power flows. The amounts of energy stored in the electrical energy store are determined on the basis of the specific power flows flowing in or out. Based on the associated quality properties of the power flows, the quality properties of the amounts of energy are determined and assigned to the amounts of energy. If, for example, there are two characteristics of a quality property, which are designated as A and B by way of example, then the quality property can be A or B for incoming or outgoing power flows. Since the power flows are recorded with exact time, that is, time-resolved (e.g. precise to the second, minute or quarter of an hour), the amounts of energy added to and removed from the energy storage device can be determined by integrating the power flows over time. In the example, the quality property A or B is then assigned to the respectively determined amounts of energy. For a total amount of energy in the electrical energy store, it can be determined in this way what proportion of an amount of energy with quality property A and what proportion an amount of energy with quality property B has. This differentiation and the provision of the quality properties make it possible to improve energy management, in particular to control and / or regulate it more finely, since the electrical energy store then, for example, specifically only has one amount of energy which corresponds to an amount of energy with quality property A (or B), etc.

One of the advantages of the method and the device is that the at least one quality property assigned to the respective amounts of energy in the electrical energy store allows billing to a supplier broken down according to quality properties, so that, for example, an EEG surcharge etc. can also be better calculated. In particular, detailed balancing and billing of the individual power flows can be carried out as a function of the respectively assigned at least one quality property.

In particular, it is provided that the method is designed for direct current. The bidirectional sensing power flow sensor system is therefore designed in particular for the bidirectional sensing of a power flow carried by direct current. This means that a lossy changeover and renewed rectification can be dispensed with. In principle, however, the method can also be used when using alternating current or in mixed house networks, the power flow sensors then being designed for the respective type of current.

A power flow sensor system comprises in particular at least one current sensor and at least one voltage sensor and / or at least one energy flow direction sensor. The at least one current sensor provides a current signal corresponding to the detected current. The at least one voltage sensor provides a voltage signal corresponding to the detected voltage. A current power and a direction of the power (power flow) can be determined from the current signal and the voltage signal in the power flow sensor system or in the computing device. The power flow sensors can therefore also be understood as a "counter".

The time-accurate recording of the power flows takes place in particular by means of the registering load profile measurement or meter reading profile measurement.

A quality property is determined by means of the computing device or received from it. A quality property can, for example, be defined as a function of a type of generation (sustainable energy production, non-sustainable energy production, etc.). A respective type of generation can, for example, be derived from a known topology of generators (supply network, photovoltaics, CHP) and electrical energy storage devices in a house network. In principle, however, additional and / or other quality properties can also be used.

Parts of the device, in particular the computing device, can be designed individually or collectively as a combination of hardware and software, for example as program code that is executed on a microcontroller or microprocessor. However, it can also be provided that parts are designed individually or combined as an application-specific integrated circuit (ASIC).

In one embodiment it is provided that the at least one quality property comprises at least one sustainability quality. This enables energy management that is oriented towards the goal of sustainability. Such a sustainability quality denotes, in particular, a sustainability in the generation of the electrical power or amount of electrical energy considered in each case. For example, it can be provided that the power or the amount of energy is differentiated according to whether it is or has been provided by means of “gray electricity” or “green electricity”. In this context, “gray electricity” refers in particular to electricity that was provided by means of unsustainable (or at least ecologically or politically undesirable) electricity generation. In contrast, “green electricity” refers to electricity that has been provided by means of sustainable (or at least ecologically or politically desirable) electricity generation. The example only includes two manifestations of the quality property. In principle, other characteristics and / or quality properties can also be used. For example, in addition to "gray electricity" and "green electricity", other classes can be provided, for example to further differentiate between "green electricity", which was generated by means of a CHP (not sustainable, but more climate-friendly than "gray electricity"), and "green electricity", which was generated by means of Photovoltaic was generated (sustainable) etc.

In one embodiment, it is provided that power flows in a house network comprising the electrical energy storage device for existing consumers and / or generators and / or further energy storage devices are recorded precisely in time by means of further power flow sensors, the at least one quality property of the respective power flow on the electrical energy storage device depending on the respective Power flows in the house network is determined, with the generators and / or the further energy stores in the house network being assigned or assigned at least one quality property at least at times. As a result, all power flows in a house network can be recorded and made available with the respective quality properties. the Power flow sensors are designed to be unidirectional or bidirectional as required. A supply network can act both as a producer (extraction of power) and as a consumer (feed-in of power). For example, it can be provided that, in addition to a network connection (supply network), consumers and the electrical energy storage device, the house network also includes a CHP (generator) and a bidirectional wallbox for connecting an electric vehicle. The at least one quality property is then assigned to the respective power flows and the respective at least one quality property of the amounts of energy is determined as a function of the respective quality properties of the individual power flows in the house network. The further power flow sensors can be configured unidirectional or bidirectional, depending on the type of subscriber in the house network. For the bidirectional wallbox, for example, a bidirectionally recording power flow sensor system is provided, whereas a unidirectionally recording power flow sensor system is sufficient for the CHP unit.

In one embodiment of the device it is accordingly provided that the device comprises at least one further input interface which is set up to contact at least one further signal and / or data line from at least one further power flow sensor system on existing consumers and / or generators and / or further energy stores in a house network comprising the electrical energy store, the computing device also being set up to receive power flows recorded and transmitted at a precise time by the at least one further power flow sensor system, and the at least one quality property of the respective power flow on the electrical energy store as a function of the respective power flows and the Generators and / or the further energy stores in the house network to determine at least one quality property assigned at least at times for this purpose.

In one embodiment it is provided that a topology of an arrangement of the power flow sensors in the house network is at least partially hierarchically structured. In this way, the at least one quality property of the amounts of energy in the electrical energy storage device can be determined by forming the difference between individual power flows (or amounts of energy transferred) and balancing that is accurate in time.

In one embodiment, it is provided that charging and / or discharging of the electrical energy store is controlled or regulated as a function of the quality properties assigned to the respective amounts of energy in the energy store and / or the power flows in the house network. Building on the examples described above, it can be provided, for example, that an amount of “gray electricity” stored in the electrical energy storage device should only be used to feed back into the supply network, whereas a stored amount of “green electricity” is consumed by consumers within the house network or the electric vehicle target. In particular, this also enables “gray electricity” to be drawn from the supply network in a way that is beneficial to the network, if there is excess capacity there, and a subsequent feed back into the supply network. In particular, there is no EEG surcharge to be paid for grid-beneficial re-feeding, since the energy for intermediate storage was taken from the supply network; on the other hand, if “green electricity” is fed in, it does. The assigned at least one quality property therefore makes it possible to carry out a detailed balancing of the individual power flows and amounts of energy.

In one embodiment it is provided that a power flow in the house network is controlled or regulated as a function of the quality properties assigned to the respective amounts of energy in the energy store and / or the power flows in the house network. In this way, for example, the electrical energy storage device can be specifically charged when "green electricity" (e.g. from a photovoltaic system) or when "gray electricity" (e.g. to absorb excess power from a utility network) is available. The other power flows in the house network can also be controlled and / or regulated as a function of the at least one quality property, for example in order to transfer an amount of energy stored in the electrical energy store, which is assigned as the quality property “green electricity”, from the electrical energy store to another energy store of an electric vehicle transfer.

In one embodiment it is provided that when power is fed into a supply network, at least one quality property corresponding to the power flow is transmitted to a network operator. In this way, for example, an amount of energy fed in can be remunerated as a function of the at least one quality property. For example, it can be provided that “green electricity” that has been or is being generated by means of a photovoltaic system receives a higher remuneration than “green electricity” that has been or is being generated by means of a CHP. Furthermore, the transmission also allows improved intermediate storage of excess power from the supply network in the electrical energy storage device or, if applicable, in further energy storage devices in the house network, as this “gray electricity” can be accounted for by the process and the device and a (logical or accounting) separation from “green electricity” can take place. Due to the balancing according to "gray electricity" and "green electricity", such "gray electricity" can then be fed back into the supply network, whereby an EEG surcharge is not calculated due to the knowledge of the assigned quality property "gray electricity". With the correspondingly transmitted at least one quality characteristic “gray electricity”, the supplier can take this into account when billing.

In one embodiment, it is provided that on the basis of the power flows recorded at a precise time by means of the power flow sensors and the respectively assigned quality properties, at least one billing value is calculated. In particular, it can be provided that an EEG-relevant network feed into a supply network and / or an associated feed-in tariff is calculated. The calculated EEG-relevant grid feed-in is then transmitted to the utility company.

In one embodiment of the device it is provided that the device comprises the power flow sensor system (s). In this way, an energy management system, e.g. in module form, can be provided in which all power flow sensors are integrated. This can save costs in production and installation.

In one embodiment of the device it is provided that the device is designed as a smart meter. In particular, the device can have a communication interface with which the device can transmit recorded power flows and / or specific amounts of energy and the respective associated quality properties to a supplier.

Further features for the configuration of the device emerge from the description of configurations of the method. The advantages of the device are in each case the same as in the embodiments of the method.

• 1 eine schematische Darstellung einer Ausführungsform der Vorrichtung zur elektrischen Verbrauchs- und Erzeugungserfassung;
• 2 eine schematische Darstellung einer weiteren Ausführungsform der Vorrichtung zur elektrischen Verbrauchs- und Erzeugungserfassung.

The invention is explained in more detail below on the basis of preferred exemplary embodiments with reference to the figures. Here show:

• 1 a schematic representation of an embodiment of the device for recording electrical consumption and generation;
• 2 a schematic representation of a further embodiment of the device for recording electrical consumption and generation.

In 1 Figure 3 is a schematic representation of one embodiment of the apparatus 1 for recording electrical consumption and generation. The device 1 specifically performs the method described in this disclosure.

The device 1 includes an input interface 2 and a computing device 3 . The computing device 3 includes a data store (not shown).

The input interface 2 is used to contact a signal and / or data line 4th a power flow sensor system 5 on an electrical energy store 10 . The electrical energy storage 10 is designed in particular as a battery. Using the power flow sensors 5 can be a power flow into or out of the electrical energy store 10 are recorded. The power flow is recorded bidirectionally and precisely in time, with a time resolution, for example, being accurate to 15 minutes.

The computing device 3 is set up for this by the power flow sensors 5 on the electrical energy store 10 Receive bidirectional and timely recorded and transmitted power flows. The recorded power flows are stored in the data memory of the computing device 3 deposited.

The computing device 3 determines or receives at least one quality characteristic 22nd of a respective power flow. This is also done on time. The at least one quality property 22nd can for example by means of a quality signal 6th that of the computing device 2 is supplied from the outside, provided or by the computing device 2 can be determined if, for example, quality properties 22nd further power flows are known in a house network.

Starting from a respective power flow, the computing device 2 in the electrical energy store 10 stored amounts of energy 21-1 , 21-2 certainly. This is done by integrating and balancing the power flows over time. In this way it can be determined at any time what total amount of energy is currently in the electrical energy store 10 is stored. The total amount of energy can be checked using other measurement methods (e.g. voltage measurement to determine the state of charge, SOC, etc.).

The certain amounts of energy 21-1 , 21-2 arranges the computing device 2 in each case corresponding quality characteristics 22-1 , 22-2 to. This is done on the basis of the quality characteristics of the respective recorded power flows. Here are amounts of energy 21-1 , 21-2 with same associated quality properties 22-1 , 22-2 to an amount of energy 21-1 , 21-2 summarized.

For clarification in the 1 shown amounts of energy 21-1 , 21-2 in the electrical energy store 10 are the quality characteristics 22-1 , 22-2 assigned. These quality characteristics 22-1 , 22-2 can for example contain a sustainability quality, which for example includes information about whether the amount of energy was provided by means of a “gray electricity” or a “green electricity”. It should be noted here that the in the electrical energy store 10 stored energy is inherently similar and that the assigned at least one quality property only means a logical assignment, in particular to enable separate and detailed balancing.

Due to the precise time or energy quantity allocation of the respective quality properties 22-1 , 22-2 it can also be determined later what proportion of the in the electrical energy storage 10 stored energy comes from a "gray electricity" and what proportion comes from a "green electricity". This enables an improved recording of consumption and generation. In particular, this enables an exact balancing of an EEG surcharge and a grid-beneficial intermediate storage and re-feeding of a power surplus.

Becomes an amount of energy 21-1 , 21-2 removed, this can be done according to the quality properties assigned in each case 22-1 , 22-2 be reduced in a balance sheet.

It can be provided that the device 1 at least one additional input interface 7th which is set up to contact at least one further signal and / or data line from at least one further power flow sensor system (not shown) to existing consumers and / or generators and / or further energy stores in one of the electrical energy stores 10 comprehensive home network.

The computing device 2 is then further set up to receive power flows that are detected and transmitted at a precise time from the at least one further power flow sensor system, and the at least one quality property of the respective power flow on the electrical energy store 10 depending on the respective power flows and the at least one quality property assigned to the generators and / or the further energy stores in the house network for this purpose, at least temporarily 22-1 , 22-2 to determine.

It can be provided that charging and / or discharging of the electrical energy store 10 depending on the respective amounts of energy in the energy store 10 and / or the quality properties assigned to the power flows in the house network 22-1 , 22-2 controlled or regulated.

It can be provided that a power flow in the house network is dependent on the respective amounts of energy 21-1 , 21-2 in the energy store 10 and / or the quality properties assigned to the power flows in the house network 22-1 , 22-2 controlled or regulated.

It can be provided that, when power is fed into a supply network, at least one quality property corresponding to the power flow 22-1 , 22-2 is transmitted to a network operator (e.g. to a utility company).

It can also be provided that the device 1 the power flow sensor (s) 5 includes. Then the device comprises 1 for example connection contacts (not shown) for the electrical lines for contacting the electrical energy store 10 and, if necessary, for contacting consumers and / or generators and / or other electrical energy stores, in particular in a house network. The power flow sensors are then located between these connection contacts 5 arranged.

It can be provided that the device 1 is designed as a smart meter. All power flow sensors are in such a smart meter 5 housed in a housing and a balancing of the power flows or the amounts of energy of the electrical energy storage 10 and consumers and / or generators and / or further electrical energy stores is by means of the computing device 2 carried out, for example by forming the difference between the individual power flows and determining the associated amounts of energy. Billing information generated from this is then transmitted to a user and / or a supplier.

In 2 Figure 3 is a schematic representation of another embodiment of the apparatus 1 for recording electrical consumption and generation.

The device 1 comprises a computing device 3 , an input interface 2 and other input interfaces 7th . The device further comprises 1 a power flow sensor system 5 for bidirectional and precisely timed acquisition of a Power flow on an electrical energy store 10 , which is designed as a battery.

The device 1 also includes further power flow sensors 8-x for recording power flows at different points in a house network 30th . The power flow sensors 8-1 detects a flow of power between the house network bidirectionally and precisely in time 30th and a utility network 40 . The power flow sensors 8-2 detects a power flow bidirectionally and precisely for a part of the house network 30th by an energy management system 31 is controlled. The power flow sensors 8-3 detects the flow of power to a wallbox bidirectionally and precisely in time 32 on which a battery 51 of an electric vehicle 50 can be loaded and unloaded. The power flow sensors 8-4 detects a power flow on a photovoltaic system unidirectionally and precisely in time 33 . Respective signal or data lines (not shown for the sake of clarity) of the power flow sensors 8-x are with the further input interface 7th the device 1 tied together.

The energy management system 31 , which in the embodiment shown in particular as part of the device 1 is formed, further comprises DC voltage converter 9-x and an inverter 11 . It can be provided here that the computing device 3 and the input interfaces 2 , 7th as part of the energy management system 31 are trained.

Furthermore are consumers 34 in the home network 30th shown schematically.

A topology of an arrangement of the power flow sensors 5 , 8-x in the home network 30th is structured hierarchically. This makes it possible to differentiate respectively transmitted power flows proportionally according to the quality characteristics.

All power flow sensors 5 , 8-x are designed in particular as counters with registering load profile measurement or meter reading profile measurement. In particular, the meters comply with the EEG law and are certified. Except for the power flow sensors 8-4 can all power flow sensors 5 , 8-1 , 8-2 , 8-3 Detect a power flow bidirectionally, so that these can also be referred to as bidirectional meters.

By way of example, the invention is intended below on the basis of various (exemplary) operating states in the house network 30th and the quality characteristics "gray electricity" and "green electricity" are made clear. The quality characteristics "gray electricity" and "green electricity" relate to the type of generation associated with the respective power flow. It is assumed here that the computing device 3 the respective amounts of energy are determined and the quality properties are assigned to the respective amounts of energy as already described above.

Operating condition 1 - Feeding photovoltaic electricity into the supply network 40 :

Using the power flow sensors 8-4 becomes one of the photovoltaic system 33 The amount of energy generated (“green electricity”) is determined. Using the power flow sensors 8-2 becomes one in the home network 30th The amount of energy fed in is determined and by means of the power flow sensors 8-1 becomes one in the utility network 40 The amount of energy fed in is determined. Due to the time-accurate recording, one can enter the supply network 40 The amount of energy fed in can be documented and accounted for with the quality attribute “green electricity”. Based on the in the utility network 40 An (EEG-relevant) feed-in tariff is calculated for the amount of energy fed in ("green electricity").

Operating condition 2 - Feeding photovoltaic electricity into the electrical energy storage 10 :

Using the power flow sensors 8-4 becomes one of the photovoltaic system 33 The amount of energy generated ("green electricity") is determined. Using the power flow sensors 5 becomes one in the electrical energy storage 10 The amount of energy fed in is determined. As a result of the precisely timed detection, a can be stored in the electrical energy store 10 The amount of energy fed in can be documented and accounted for with the quality attribute "green electricity" (cf. 1 ).

Operating condition 3 - Feeding photovoltaic electricity into the wallbox 32 / Battery 51:

Using the power flow sensors 8-4 becomes one of the photovoltaic system 33 The amount of energy generated (“green electricity”) is determined. The power flow sensors 8-3 records an amount of energy ("green electricity") that is supplied via the wallbox 32 into the battery 51 is fed in and is therefore relevant for an EEG surcharge.

Operating condition 4th - Feeding photovoltaic electricity into the house network 30th / 100% self-consumption:

Using the power flow sensors 8-4 becomes one of the photovoltaic system 33 The amount of energy generated (“green electricity”) is determined. Using the power flow sensors 8-2 becomes one in the home network 30th The amount of energy fed in that is relevant for an EEG surcharge is determined. The power flow sensors 8-1 captures one to the utility network 40 removed Amount of energy, that is, the difference between total consumption and self-consumption.

Operating condition 5 - Wallbox operation 32 via utility network 40 , Photovoltaic power and electrical energy storage:

The power flow sensors 8-3 records an amount of energy with which the battery 51 has been loaded. Using the power flow sensors 8-4 becomes one of the photovoltaic system 33 The amount of energy generated and relevant to the EEG levy (“green electricity”) is determined. The power flow sensors 5 records an EEG-surcharge-relevant, withdrawn amount of energy ("green electricity"), which the electrical energy storage 10 to charge the battery 51 is removed. The power flow sensors 8-2 records an amount of energy ("gray current") that comes from the supply network 40 to charge the battery 51 is fed. The power flow sensors 8-1 records a total converted amount of energy in the house network 30th , that is, the consumer 34 and the part that is used by the energy management system 31 is controlled.

Operating condition 6th - Grid serviceability (feed into the supply network 40 if there is a shortage in the supply network 40 ):

The power flow sensors 8-2 records a feed of the energy management system 31 in the home network 30th . The power flow sensors 8-1 captured one in the utility network 40 amount of energy fed in. By means of the time-accurate recording, it can be determined how much of the fed-in amount of energy is "gray electricity" and how much is "green electricity". This takes place on the basis of the respectively assigned at least one quality property of the respective power flows or amounts of energy that are determined by the power flow sensors 5 , 8-x are recorded. In other words, is the computing device 2 It is known at all times whether an amount of energy is assigned the quality attribute “gray electricity” or “green electricity”.

Operating condition 7th - Network serviceability (purchase from the utility network 40 if there is a surplus in the supply network 40 ):

The power flow sensors 8-1 recorded a total from the utility network 40 Amount of energy withdrawn ("gray current"). The power flow sensors 8-3 and the power flow sensors 5 capture each in the electrical energy storage 10 and via the wallbox 32 into the battery 51 Amount of energy fed in ("gray current"). As a result of the time-accurate detection, both in the electrical energy store 10 as well as in the battery 51 it is documented how large a proportion of "gray electricity" and how large a proportion of "green electricity" is.

Operating state 8 - billing method for the battery 51 :

As long as the battery 51 via the wallbox 32 to the energy management system 31 is coupled, an amount of energy fed in and withdrawn can be recorded and documented according to the quality property, separated into "gray electricity" and "green electricity". When disconnecting and / or reconnecting the battery 51 from / with the energy management system 31 can be provided in the battery 51 To "neutralize" the amount of energy stored, that is, for example, the entire amount of energy in the
battery 51 The stored amount of energy is then assigned the quality attribute "gray electricity".

As an alternative to this, provision can also be made for an unambiguous balancing to take place through certification or unambiguous, reliable marking of the respective proportional allocations of “gray electricity” and “green electricity” to the stored amounts of energy. Here, for example, blockchain technology can be used in order to be able to track the quality properties of the amounts of energy clearly and tamper-proof.

In each of these operating states, an EEG surcharge-relevant feed-in or use can be calculated from the balance-sheet differences between the power flows or the respective amounts of energy transferred and the quality properties assigned in each case.

In the embodiment shown, it is provided in particular that when power is fed into the supply network 40 at least one quality property corresponding to the power flow 22nd , for example via an Internet or cellular connection, is transmitted to a network operator.

In particular, the device 1 be designed as a smart meter in which all power flow sensors 5 , 8-x are arranged in a compact housing.

It can also be provided that the device 1 only the energy management system 31 includes.

List of reference symbols

1

contraption

2

Input interface

3

Computing device

4th

Signal and / or data line

5

Power flow sensors

6th

Quality signal

7th

further input interface

8-x

further power flow sensors

9-x

DC voltage converter

10

electrical energy storage

11

Inverter

21-x

Amount of energy

22, 22-x

Quality property

30th

House network

31

Energy management system

32

Wallbox

33

Photovoltaic system (producer)

34

consumer

40

Utility network

50

Electric vehicle

51

battery

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102010002914 A1 [0003]

Claims (10)

Process for recording electrical consumption and generation, wherein a power flow is recorded bidirectionally and precisely in time on an electrical energy store (10) by means of a power flow sensor system (5), wherein at least one quality property (22-x) of a respective power flow is determined or obtained with exact time, wherein amounts of energy (21-x) stored in the electrical energy store (10) are determined on the basis of a respective power flow, the particular amounts of energy (21-x) being assigned or assigned to the respective quality property (22-x), and the respectively assigned quality properties (22-x) being provided. Procedure according to Claim 1 , characterized in that the at least one quality property (22-x) comprises at least one sustainability quality. Procedure according to Claim 1 or 2 , characterized in that power flows in a house network (30) comprising the electrical energy store (10) for existing consumers (34) and / or generators (33, 40) and / or further electrical energy stores (51) by means of further power flow sensors (8-x ) are recorded precisely in time, the at least one quality property (22-x) of the respective power flow at the electrical energy store (10) being determined as a function of the respective power flows in the house network (30), the producers (33, 40) and / or For this purpose, at least one quality property (22-x) is or is assigned to the further energy stores (51) in the house network (30) at least at times. Procedure according to Claim 3 , characterized in that a topology of an arrangement of the power flow sensors (5, 8-x) in the house network (30) is at least partially hierarchically structured. Method according to one of the preceding claims, characterized in that charging and / or discharging of the electrical energy store (10) as a function of the respective amounts of energy (21-x) in the energy store (10) and / or the power flows in the house network (30 ) assigned quality properties (22-x) is controlled or regulated. Method according to one of the preceding claims, characterized in that a power flow in the house network (30) is dependent on the quality properties (22) assigned to the respective amounts of energy (21-x) in the energy store (10) and / or the power flows in the house network (30) -x) is controlled or regulated. Method according to one of the preceding claims, characterized in that when power is fed into a supply network (40), at least one quality property (22) corresponding to the power flow is transmitted to a network operator (40). Device (1) for recording electrical consumption and generation, comprising: at least one input interface (2), set up to contact a signal and / or data line (4) from at least one power flow sensor system (5) to at least one electrical energy store (10), and a computing device (3), wherein the computing device (3) is set up to bidirectionally and from the power flow sensor system (5) on the electrical energy store (10) receive timely recorded and transmitted power flows, to determine or maintain at least one quality property (22-x) of a respective power flow with precise timing, and to determine energy quantities (21-x) stored in the electrical energy store (10) based on a respective power flow, and to assign and provide the corresponding quality property (22-x) to the determined energy quantities (21-x). Device (1) according to Claim 8 , characterized by at least one further input interface (7) which is set up to contact at least one further signal and / or data line from at least one further power flow sensor system (8-x) on existing consumers (34) and / or generators (33, 40 ) and / or further energy stores (51) in a house network (30) comprising the electrical energy store (10), the computing device (3) also being set up to receive power flows that are precisely timed and transmitted by the at least one further power flow sensor system (8-x) to receive, and the at least one quality property (22) of the respective power flow to the electrical energy store (10) depending on the respective power flows and the generators (33, 40) and / or the further energy stores (51) in the house network (30) for this purpose at least at times to determine at least one quality property (22) assigned in each case. Device (1) according to Claim 8 or 9 , characterized in that the device (1) comprises the power flow sensor system (s) (5, 7).

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