WO2020043654A1

WO2020043654A1 - Method for coordinating charging and/or discharging processes of mobile storage units and portal for performing the method

Info

Publication number: WO2020043654A1
Application number: PCT/EP2019/072685
Authority: WO
Inventors: Matthias GROENE
Original assignee: Sma Solar Technology Ag
Priority date: 2018-08-31
Filing date: 2019-08-26
Publication date: 2020-03-05
Also published as: DE102018121290A1

Abstract

A method for coordinating charging and/or discharging processes of mobile storage units (15) via a portal (1) connected to the Internet (9) comprises the steps of: – providing data pertaining to a plurality of charging options by means of the portal (1), wherein each charging option has an associated charging station (21) that is fed at least in part by a regenerative energy generation installation (22), and wherein the data contain information pertaining to a position associated with the charging option and to an energy price associated with the charging option, – receiving a request with request data from a communication device (11) of a customer (10) on the portal (1), – comparing the request data with the data of the charging options for at least some of the plurality of charging options, – generating a list of charging options in accordance with the comparison. Following selection of a charging option from the list, the following steps are performed: reserving a performance/time profile (31) associated with the request and/or a charging station (11), associated with the request, for the selected charging option, and authorizing the customer (10) to perform the charging and/or discharging process. The application furthermore relates to a portal (1) connected to the Internet for performing the method.

Description

METHOD FOR COORDINATING CHARGING AND / OR UNLOADING PROCESSES OF MOBILE STORAGE UNITS AND PORTAL FOR CARRYING OUT THE METHOD

TECHNICAL FIELD OF THE INVENTION

The invention relates to a method for coordinating charging and / or discharging processes of mobile storage units via a portal connected to the Internet. A mobile storage unit is to be understood in particular as a storage unit assigned to an electric vehicle. The invention also relates to a portal for carrying out the method according to the invention.

STATE OF THE ART

The number of electric vehicles has increased significantly in recent years and is likely to continue to increase - also due to political efforts. The primary goal of this development is to reduce C02 emissions and shift the consumption of fossil fuels towards renewable energies. From this point of view, an electric vehicle with a mobile storage unit is only useful if the storage unit is also charged with regeneratively generated energy. Although energy generation in many countries already has a considerable share of renewable energy - e.g. generated by wind or photovoltaic (PV) systems - there is still a predominant share of non-renewable energy sources (coal, nuclear power) to supply a public energy supply network (EVN). In addition, a fundamental fluctuation in the generation of regenerative energy, which is inherent in the principle, means that regenerative energy generation plants have to be curtailed in times of high generation rates and their regeneratively generated energy cannot be fed into the public energy supply network and thus cannot be used. If an electric vehicle is now easily charged by the public energy supply network, its storage unit always has a considerable proportion of non-regeneratively generated energy.

A charging process of an electric vehicle takes significantly longer than a filling process of a conventional motor vehicle with an internal combustion engine. In addition, there is currently an insufficient infrastructure at charging stations, particularly with regard to their number and their area-wide distribution. A spontaneously decided charging of one Electric vehicles are therefore often associated with considerable expenditure of time and money for a user of the electric vehicle.

It is known that electric vehicles - like other motor vehicles as well - are often parked unused for a considerable amount of time. During this time, the storage units of the electric vehicles could be connected to an EVN - even without being charged - and there they could support the EVN. As a rule, however, times and places where the EVN requires network support are not known to a user of the electric vehicle, and thus of the mobile storage unit.

In the light of the above-mentioned aspects, comprehensive coordination of charging and / or discharging processes of mobile storage units is desirable.

An energy management system (EMS) is known from DE 10 2012 203121 A1, which comprises a network for the transmission and distribution of electrical energy. Electrical energy from generation facilities can be fed into the network. Consumers convert electrical energy obtained from the network into useful energy. Storage devices by means of which electrical energy can be absorbed from the network, temporarily stored and fed back into the network can be coupled to the network. The EMS also has forecasting tools for creating energy consumption forecasts for consumer facilities. There are also control means for coupling and decoupling the generation devices to and from the network, and for regulating the absorption and / or recovery of energy by the storage devices. Communication means transmit the energy consumption forecasts created by the forecasting means to the control means. The control means are designed to determine and implement coupling interventions for the generation devices and / or control interventions for the generation and / or storage devices for system stabilization from the transmitted energy consumption forecasts.

The document DE 11 2011 100 923 T5 discloses a charging station administration device comprising: an administration means for the administration of information about available time windows, in which a charging device for vehicle-bound batteries is available, and information representing an installation location of the charging device. The charging station administration device additionally comprises means for publishing the information about the available time slots and the installation location information in a communication network. OBJECT OF THE INVENTION

The invention is based on the object of demonstrating a method for coordinating charging and / or discharging processes of mobile storage units, each associated with an electric vehicle, with preferably regeneratively generated energy via a portal connected to the Internet. The method is intended to reduce the otherwise necessary curtailment of a regenerative energy generation system by enabling an operator of the regenerative energy generation system to utilize the regeneratively generated energy within mobile storage units in a useful manner. In addition, the effort for a charging process of an electric vehicle for the user is to be reduced and an existing infrastructure at charging stations is used more efficiently. Furthermore, it is an object of the invention to show a portal connected to the Internet which is suitable for carrying out the method.

SOLUTION

The object of the invention is achieved by a method with the features of independent claim 1. The dependent claims 2 to 13 are directed to preferred embodiments of the method. The subordinate claim 14 is directed to a portal connected to the Internet for carrying out the method. The dependent claim 15 relates to an advantageous variant of the portal according to the invention.

DESCRIPTION OF THE INVENTION

A method for coordinating charging and / or discharging processes of mobile storage units, each associated with an electric vehicle, with preferably regeneratively generated energy, is carried out via a portal connected to the Internet and includes the steps:

The portal provides data on a plurality of charging options, each charging option being assigned a charging station which is at least partially fed by a regenerative energy generation system (EEA) and the data for each of the charging options providing information

A geographical position of the charging station assigned to the charging option, and

• a specific energy price assigned to the charging option

include;

Receiving a request for a loading and / or unloading process from a communication device of a customer at the portal, the request being the request data comprises at least one time and / or amount of energy assigned to the charging and / or discharging process;

Comparison of the request data with an available performance curve of the charging option and / or a temporal availability of the charging station assigned to the charging option for at least some of the plurality of charging options;

Generating a list of loading options corresponding to a positive result of the comparison, the list being visible to the communication device. After selecting a charging option from the generated list via the communication device, the following additional steps are carried out in the process:

Reserve a performance-time profile assigned to the request in the available performance history of the selected charging option and / or a charging station of the selected charging option assigned to the request, and

Authorization of the customer to carry out the loading and / or unloading process according to the reservation through the portal.

The time assigned to the charging and / or discharging process can include a time period, start time and / or end time. The time can be specified in the request data in the form of a fixed time or a fixed time, or as a permitted time range. In the latter case, all times or periods of time that lie within the permitted time range can be interpreted as the desired period of time or the desired time according to the request data. In the same way, the amount of energy assigned to the charging and / or discharging process can also be specified in the form of a value or a desired energy range. A charging option in the sense of the application denotes a basic possibility of carrying out the charging and / or discharging process of the mobile storage unit. Each loading option has a combination of features (ie people, objects or properties) that characterize the respective loading option and make it distinguishable from other loading options. Specifically, a charging option includes the reference to - or the use of - at least one regenerative EEA, in particular the use of a performance reference of the at least one regenerative EEA. It goes without saying that the charging option can also include the use of a number of regenerative EEAs, in particular also a number of different types of regenerative EEAs, for example wind power, photovoltaic and / or hydropower plants. One or more charging stations are assigned to a charging option. A charging option can also include the reference to - or the use of - an energy store, for example a stationary energy store, in particular the use of a power exchange with the one energy store. The available performance history of the charging option can be one total power generated by the at least one regenerative EEA. Alternatively, it can also comprise only a fraction of the total power generated by the at least one regenerative EEA. The latter is the case, for example, if a supply of local consumers at the location of the EEA is still to be guaranteed by the regeneratively generated power of the EEA. The available power curve can also take into account a power drawn from the stationary energy store of the charging option. The available performance profile of the charging option can be estimated on the basis of a currently generated output of the at least one EEA, possibly taking into account past performance profiles of the EEA and / or taking weather forecasts into account. The available performance profile of the charging option can be communicated to the portal by the charging option, for example via a control unit assigned to the charging option and designed for energy management. Alternatively, the portal can also estimate the available performance curve of the charging option, for example on the basis of a nominal power of the EEA and taking into account the currently generated power of neighboring EEAs and / or weather forecasts known to the portal. The specific energy price denotes a price related to an energy unit. For example, it can be given in the form of EUR / kWh or a comparable unit. The specific energy price can vary over time. He can take into account tariff requirements on the part of the network operator, for example day or night tariffs. The specific energy price can depend on a current and / or forecast generation rate of the EEA assigned to the charging option. It can also be staggered depending on the power flows during the loading and / or unloading process. The specific energy price can be specified by the provider. It can be sent to the portal each time it is updated. Alternatively, the specific energy price can also be calculated by the portal, possibly taking into account a specification of a provider of the charging option. The portal can generate the list of loading options according to the positive result of the comparison. Alternatively, however, it is also possible for the list to be generated by the customer's communication device. However, the latter is usually associated with a higher communication effort. The customer can be authorized, for example, by the portal sending a code, for example a character string or a machine-readable code, to the communication device assigned to the customer, which is then queried to carry out the charging and / or discharging process at the charging option. The communication device can be, for example, a smartphone or a customer's computer connected to the Internet. Alternatively, however, the communication device can also be designed as an integral component of an electric vehicle assigned to the customer. In the method according to the invention, a central entity is formed with the portal, which mediates between a large number of mobile storage units or their users as customers on the one hand and a large number of charging options or their providers on the other. Each of the charging options is preferably assigned at least one regenerative EEA, so that a charging station assigned to the charging option is at least partially powered by a power of the regenerative EEA. With the portal as the central instance, a large number of loading and / or unloading processes can be advantageously coordinated both for the customers and for the providers of the charging options. Since the portal knows in principle a plurality of loading options together with their available performance profiles, incoming request data on the portal can be compared quickly and efficiently with the data of the loading options. In this way, a list of those charging options can be filtered out very quickly from the plurality of charging options, in which a charging and / or discharging process of the mobile storage unit can be carried out in accordance with the request data. Since the list can be viewed via the customer's communication device, the customer can simply choose a specific loading option from the list and communicate this to the portal by selection via the communication device. The portal then reserves a corresponding amount of energy in the form of a performance-time profile for the customer within the available performance of the respective charging option. The authorization of the customer ensures that only the customer who has selected this charging option can carry out the loading and / or unloading process on the selected charging option. Access by another customer to the amount of energy already reserved is therefore prevented.

Conversely, it is ensured that the selected charging option both has sufficient regeneratively generated energy for charging the mobile storage unit and that a corresponding charging station associated with the charging option is available. An effort by the customer to carry out the loading and / or unloading process is thus minimized. A provider of the charging option, who is usually also an operator of the regenerative EEA associated with the charging option, is provided with an alternative to using his regeneratively generated energy. This is particularly advantageous if the regenerative EEA would have to be curtailed because, for example, the power it generates exceeds the consumption of local consumers of the charging option or the provider of the charging option and the excess power, e.g. due to a specification by the network operator, does not go to the public Energy supply network (EVN) may be fed. An otherwise necessary curtailment of the EEA is omitted, but is at least reduced. In an advantageous embodiment, the charging station - possibly in connection with a control unit assigned to the charging option, for example a control unit for energy management at the location of the charging option, a further communication unit assigned to the charging option and the portal - is set up to only charge and / or discharge the vehicle Basis of authorization to start. Specifically, a code assigned to the authorization can be sent both to the customer and to the reserved charging station of the charging option. The charging station can therefore compare the codes on site. Alternatively, it is also possible for the code provided by the customer to be forwarded to the portal via a communication unit connected to the charging station. In this case, the portal can compare the forwarded code with the code originally sent to the customer. In this way, it is automatically prevented that a customer carries out the loading and / or unloading process without prior authorization from the portal. The amount of energy reserved for the authorized customer via the performance-time profile can therefore only be accessed by him and not by a third party.

In one embodiment of the method, a generation profile of the EEA assigned to the charging option, which is generated by means of weather forecasts, is taken into account in the available performance curve of the charging option. The generation profile can be generated by a control unit - for example a control unit for the energy management system - at the location of the EEA, which includes access to weather forecasts. In this case, the weather forecast data must be available at the location of the EEA. Alternatively, however, it is also possible for the portal to have access to corresponding weather forecasts and to use these and the data assigned to the EEA, in particular a nominal power and a position of the EEA, to calculate the corresponding generation profile. Facilities for receiving and processing weather forecast data therefore only have to be provided once centrally, and not several times decentrally. When generating the available performance of the charging option, regardless of whether this is determined decentrally by a control unit at the EEA location or centrally by the portal, a consumption profile of consumers of the charging option or of consumers of the provider of the charging option can be taken into account in addition to the generation profile become. The consumption profile can take into account historical data relating to one of the charging options or a consumption assigned to the provider of the charging option for individual periods - for example time of day, days of the week, season. When the portal generates the available performance curve, the consumption profile assigned to the charging option or its provider can be transmitted to the portal. In one embodiment of the method, a position assigned to the mobile storage unit is taken into account when the portal generates the list of loading options. For example, it makes sense that only charging options that do not exceed a certain distance from the position of the mobile storage unit are listed in the list of charging options, since the charging and / or discharging process can no longer be carried out economically if the specified distance is exceeded. In the event of a negative result of the comparison between the request data and the data assigned to the loading options, that is to say if the portal cannot determine a loading option that satisfies the request data, the portal can transmit a corresponding notification to the customer's communication device. The notification can include a proposal with changed request data with which a loading option would currently be available. By accepting the proposal, the customer can simply respond with a slight change to their original request data.

In one embodiment of the method, the data assigned to the charging options include additional information about certain properties of the charging option and / or the charging station (s) assigned to the charging option. The additional information allows the customer to take their respective needs more into account when choosing an appropriate charging option. Specifically, the data assigned to the loading options can additionally contain information about a maximum possible power flow during loading and / or unloading. This allows the customer to make a selection of the charging option in accordance with a quick execution of the loading and / or unloading process. The data assigned to the charging options can additionally include information about a number of charging stations assigned to the charging option or a location of the charging option. Such information gives the customer an overview of the chances of finding another free charging station at the location of the charging option, should a previous charging and / or discharging process at the charging station reserved for him be delayed. In this case, the customer's reservation, together with his authorization, can be exchanged for the charging station at the location of the charging option at which the charging and / or discharging process ended as early as possible. Furthermore, the data assigned to the charging options can additionally include information as to whether the charging station assigned to the charging option enables inductive charging and / or discharging of the mobile storage unit. This is of particular interest in the case of self-driving electric vehicles which can drive to a charging station independently and without the intervention of a vehicle user. For example, an autonomously driving electric vehicle can automatically perform the charging and / or discharging process within its parking time, in which it is not being used, when the vehicle user releases it. In a variant of the method, the data of the charging options provided by the portal, in particular their available performance curve, as well as the specific energy price assigned to the charging options, are continuously updated by the portal. In this way, changes in the available performance history, for example due to a reservation of a performance-time profile, changes in weather forecasts, changes in a consumption profile, changes in the specific energy price assigned to a charging option, but also a newly added charging station at the location of a charging option, for future ones Inquiries are considered immediately.

In one embodiment of the method, in addition to an amount of energy exchanged between the charging station and the mobile storage unit during charging and / or discharging, the duration of the charging and / or discharging process at the charging station can be calculated or compensated for by the customer. This is particularly the case if the public energy supply network EVN needs to provide control power in the form of active and / or reactive power at a point assigned to the charging option. In this case, at least part of the control power required can be provided by the mobile storage unit. It is sufficient if the mobile storage unit is only connected to the charging station for a certain duration. Charging and / or unloading is not absolutely necessary, but can be carried out in parallel if the customer so wishes. In this case, the provision of control power is remunerated by an EVN network operator. The remuneration on the part of the network operator can be made to the provider of the charging option, who will pass on this remuneration to the customer on a pro rata basis.

In one embodiment of the method, the costs of the loading and / or unloading process are calculated to the customer and / or the proceeds from the loading and / or unloading process are calculated automatically to the provider via the portal. The portal can also charge costs from a charging station provider to an EEA operator. This is particularly relevant if the provider of the charging station and the operator of the EEA are different from each other. The costs as well as the proceeds can be positive as well as negative values. Specifically, the portal can calculate costs and / or revenues at certain time intervals, for example weekly or monthly. Both the provider of the charging station, the operator of the EEA, and the customer have only one central authority for calculating their respective costs or revenues. The effort associated with the calculation, both on the part of the customer, the operator of the EEA and the provider, is thus minimized. According to an advantageous variant of the method, the regenerative EEA and the charging station assigned to the charging option, which is at least partially fed by the regenerative EEA, have a common network connection point. The common network connection point can in particular be the network connection point of a building or a commercial enterprise. In this case, an operator of the regenerative EEA and a provider of the charging station at least partially fed by the regenerative EEA can agree with one another, that is to say that the operator of the regenerative EEA is also the provider of the charging station or the charging option assigned to the charging station. Cumulatively or alternatively, it is also possible for the regenerative EEA and the charging station at least partially fed by it to have a common local network transformer, ie are connected to the same local network transformer. In addition, it is cumulatively or alternatively possible that the regenerative EEA and the charging station at least partially fed by it are part of a jointly controlled so-called virtual power plant (VPP). A virtual power plant (VPP) is understood to mean a plurality of regenerative EEAs and charging stations within the EVN, which are controlled by a shared controller. Such a control can operate, for example, as an interface between a higher-level control of an operator of the EVN and the regenerative EEA and charging stations of the VPP. The jointly controlled EEA and charging stations of the VPP thus represent a fraction (<1) relative to the entirety of the EEA and charging stations in the EVN. The fraction is arranged within a limited area of the EVN. The limited area can in particular be an area of the EVN limited to a district or a district. In the latter two cases, ie EEA and charging station as part of a VPP and shared local network transformer from EEA and charging station, a provider of the charging station can differ from an operator of the regenerative EEA that at least partially feeds the charging station. In each of the above cases, however, it is ensured that the generated power of the regenerative EEA is not, at least not over longer distances within the EVN, transported to the charging station, but rather is consumed in the vicinity of its generation. This relieves the EVN as a whole. A power loss associated with a transport of the electrical power is reduced and the usable portion of the regeneratively generated energy is increased accordingly.

A portal according to the invention for coordinating charging and / or discharging processes of mobile storage units, each associated with an electric vehicle, comprises a computer connected to the Internet via a communication unit. The communication unit is set up to receive a request from a customer's communication device, and to transmit an authorization for a charging and / or discharging process to the customer's communication device. The portal also includes

a data memory for storing data of a plurality of loading options and possibly for storing request data assigned to the request, and

an evaluation unit for comparing the request with an available performance profile assigned to the loading options.

The portal is designed to carry out the method according to the invention. The advantages already presented in connection with the method result.

In one embodiment, the portal, in particular its communication unit, is designed to receive the data assigned to a charging option via a control unit assigned to the charging option, possibly in conjunction with a further communication unit assigned to the charging option. For this purpose, the control unit can include the further communication unit integrally. Alternatively, the control unit and the further communication unit can be separate units which are connected to one another in terms of data technology. The control unit can in particular be a control unit assigned to the charging option or its provider and designed for energy management at the location of the charging option.

BRIEF DESCRIPTION OF THE FIGURES

The invention is further explained and described below with reference to preferred exemplary embodiments illustrated in the figures.

1 shows a flow diagram of the method according to the invention in a

Embodiment;

2 shows a representation of the portal according to the invention in connection with a charging station connected to the energy supply network EVN; and

Fig. 3 shows a representation of different performance-time profiles

Loading option when performing the method according to the invention. FIGURE DESCRIPTION

1 illustrates a flow diagram of the method according to the invention in one embodiment. Reference symbols from FIG. 2 are also used in the following description of the method steps, insofar as components are mentioned in the method description which are also shown in FIG. 2. The flowchart according to FIG. 1 contains both the individual process steps S1-S13 and the entity responsible for carrying out the process steps (e.g. portal, customer, charging station).

In a first step S1, data on a plurality of loading options is provided by the portal 1. The data assigned to the loading options can be sent to the portal 1 by a control unit 23 assigned to the respective loading option, possibly in conjunction with a further communication unit 24 assigned to the respective loading option be transmitted. In a second step S2, the portal 1 receives a request from a customer 10. The request is transmitted to the portal 1 via a communication device 11 assigned to the customer 10. The request includes at least one charging energy DE intended for the charging and / or discharging process and / or a time period At. In a third step S3, portal 1 compares the request data with the data of the loading options. During the comparison, it is in particular queried whether an available performance curve of a charging option for carrying out the charging and / or discharging process has the intended charging energy DE and whether a corresponding charging station 21 is available at the location of the charging option for the intended time period At. The comparison can be made both for all loading options stored in portal 1, but alternatively also for only a few of the plurality of stored loading options. The latter saves computing time and is of particular interest if certain charging options can be excluded from the outset due to the distance between the charging station 21 of the charging option and the mobile storage unit 15 being too great. In order to determine the distance, it is possible for the portal 1 to be additionally sent a position of the mobile storage unit 15 in the request in the second step S2. In a step S4, the portal 1 queries whether the comparison has delivered at least one hit in the result, that is to say whether it was possible to ascertain a charging option which met the request data from the plurality of charging options. If no hit or no loading option satisfying the request data has been determined, the method branches to a step S12, in which the portal sends a rejection to the communication device 11 of the customer 10 in relation to the originally transmitted request. The rejection can contain a proposal for changed request data for which a loading option is available in portal 1 Are available and with which the customer can then transmit a renewed request with adapted request data to the portal 1 in the following step S2.

If, on the other hand, the comparison of the request data with the data of the loading options yields at least one hit in the result, the method branches to a step S5, in which a list of all hits, that is to say all the loading options that satisfy the request data, is generated by portal 1. The list of the charging options sufficient for the request data can be viewed by the communication device 11 of the customer 10. The list may contain further data on the respective loading options, which enable the customer 10 to select a single loading option from the list in a targeted manner. Such data can include, for example, a specific energy price assigned to the charging option, information about the position of the charging option or its charging station (s) 21, a number of charging stations 21 assigned to the charging option, and / or the charging and / or discharging process of the charging option or whose charging station (s) 21 contain the assigned maximum power flow. In a subsequent step S6, the customer 10 selects a charging option from the list via the communication device 11 assigned to him. The selection is transmitted via the communication device 11 to the portal 1, which reserves a corresponding performance-time profile in the available performance profile of the charging option in a step S7. After reservation of the service-time profile, the available service history of the charging option is automatically updated, so that now only a service history reduced by the reserved service-time profile is taken into account as the available service history of the charging option for future inquiries. With reservation of the service-time profile, the customer 10 is authorized by the portal 1 to carry out the charging and / or discharging process using the charging option or at a charging station 21 assigned to the charging option. For authorization, the portal 1 can transmit a code on the one hand to the communication device 11 of the customer 10 and on the other hand to the charging station 21 assigned to the charging option. The code can be transmitted to the charging station 21 using the further communication unit 24 assigned to the charging option and the control unit 23 connected to it and to the charging station 21.

If a charging and / or discharging process of a storage unit 15 of an electric vehicle 16 is to take place at the reserved charging station 21, it is first checked in a step S9 whether the storage unit 15 is also authorized to carry out the charging and / or discharging process. This can be done in a simple manner in that the code transmitted to the communication device 13 of the customer 10 matches the code also transmitted to the charging station 21. Only after a successful check starts in one step S10 the charging and / or discharging process of the mobile storage unit 15 at the charging station 21. After, in particular immediately after the charging and / or discharging process has ended, the charging and / or discharging process can be carried out both at the customer 10 and at a step S11 the provider 27 or operator of the charging option are calculated and corresponding invoices are issued. The charging and / or discharging processes can, however, also be calculated by means of collective invoices to the customer 10 or the provider 27 of the charging option which are carried out at regular time intervals, for example weekly or monthly.

FIG. 2 shows an illustration of the portal 1 according to the invention, which is connected to a charging option of a provider 27 via the Internet 9 in order to carry out the method according to the invention. The portal 1 contains a computer 2 with a data memory 4 and an evaluation unit 5. The data memory 4 is designed to store data for a plurality of loading options on the one hand and request data assigned to inquiries on the other hand. The evaluation unit 5 is designed to carry out a comparison of the request data with the data of the loading options. The portal 1 contains a communication unit 3, via which it is connected to the Internet 9 for data processing purposes. The communication unit 3 can be a separate communication unit that is only connected to the computer 2 in terms of data technology. Alternatively, however, the communication unit 3 can also be designed as an integral part of the computer 2. In this case, it can be arranged, for example, together with other components of the computer 2 in a common housing. As an example, only a charging option from a provider 27 is shown in FIG. 2. The charging option is assigned two charging stations 21, for example, which are supplied at least partially via a regenerative EEA 22, here in the form of a photovoltaic (PV) system. The charging option can furthermore use a stationary storage unit 26, comprising a battery storage and a bidirectionally designed DC / AC converter, for power consumption of the charging stations 21 assigned to it. The storage unit 26 is able to temporarily store excess power generated by the regenerative EEA 22, which must not be fed into the EVN 30, and, if necessary, to the charging stations 21 and / or further electrical consumers 25 which are located at a location or are assigned to a provider 27 of the charging option. The charging option, in particular its charging stations 21, its consumers 25, its storage unit 26 and its regenerative EEA 22, is connected to the public EVN 30 for the purpose of energy exchange (power supply and purchase). In this way, the consumers 25 of the charging option can be safely supplied even if the power generated by the regenerative EEA 22 and the power provided by the storage unit 26 are once insufficient. The storage unit 26 and the regenerative EEA 22 are controlled by a control unit 23 assigned to the charging option. The control unit 23 is designed for energy management at the location of the charging option. In particular, it is able to control power flows of the regenerative EEA 22, the storage unit 26 and each of the charging stations 21. Likewise, it is able to throttle individual consumers 25, or to switch them on or off. The control unit 23 is connected to the Internet 9, and to the portal 1, via a further communication unit 24. The control unit 23 is designed to generate a generation profile 34 (see FIG. 3) based on the weather forecasts that it can access, which describes an expected power generation of the regenerative EEA 22. For this purpose, the control unit 23 can either receive weather forecasts separately, for example from a weather service. Alternatively, the control unit 23 can also use weather forecasts that are received centrally by the portal 1, where appropriate further processed there, and are thus made available for various loading options that are connected to the portal 1 via the Internet. The control unit 23 is also able to create consumption forecasts for the consumers 25 assigned to the charging option in the form of a power-time profile. From the generation profile 34 (see FIG. 3) and the consumption forecasts, the control unit 23 can determine an available power curve assigned to the charging option and transmit it to the portal 1 via the further communication unit 24 and the Internet 9. There, the available performance curve associated with the loading option can be stored so that it is available to portal 1 for processing the incoming inquiries. Alternatively, the available performance curve of the regenerative EEA 22 can also be determined through the portal 1. In this case, portal 1 can take into account a nominal power of EEA 22, possibly weather forecasts known to portal 1 and / or performance data known to portal 1 of comparable regenerative energy generation systems in the vicinity of the relevant EEA 22.

An electric vehicle 16 with a mobile storage unit 15 is assigned to a customer 10, which is shown in FIG. 2 by a dash-dotted rectangle surrounding these elements. To coordinate a charging and / or discharging process of the mobile storage unit 15, the customer 10 sends a request to the portal 1 by means of a communication device 11 assigned to him, here in the form of a smartphone assigned to the customer 10. As an alternative to a smartphone, the communication device 11 can also be formed as an integral part of the electric vehicle 16. After the request has been processed by the portal 1, the communication device 11 is sent a list of loading options which satisfy the request. The customer 10 selects one of the loading options from the list, which is communicated to the portal 1 by means of the communication device 11 and via the Internet 9. In response to the selection reserves the portal 1 a performance-time profile assigned to the charging and / or discharging process in the available performance profile of the selected charging option and sends a code back to the communication device 11 for authorization. A duplicate of the code for authorization is sent to the control unit 23 of the charging option in parallel and using the further communication unit 24. If the charging and / or discharging process is to take place at the reserved charging station 21, the control device 23 can release a power flow of the reserved charging station 21 upon successful verification of the authorization.

In the case shown in FIG. 2, a provider 27 of the charging station 21 is also the operator of the regenerative EEA 22. Both the charging station 21 and the regenerative EEA 22 are connected to the power supply network 30 at a common network connection point of the provider 27. However, this is not absolutely necessary. Cumulatively or alternatively, it is possible that a provider of the charging station 22 and an operator of the regenerative EEA 22 at least partially feeding the charging station 22 differ from one another. For example, the EEA and the charging station that is at least partially fed by it can be connected to the same local network transformer (not shown in FIG. 2) or be part of a virtual power plant (VPP) with a shared control.

3 shows various power-time profiles 31-34 of a charging option when carrying out the method according to the invention in a course of the day between 04:00 and 20:00. Specifically, this is a performance-time profile 34 (also called generation profile 34 in the context of this application) that describes a power generation by the regenerative EEA 22 (here the PV system), a performance time that characterizes a power consumption by consumers 25 of the charging option -Profile 32 (also called consumption profile 32 in the context of this application). Furthermore, a power-time profile 35 is shown, which characterizes a maximum power that can be fed into the EVN. Concretely, in the illustrated example, from 08:00 to 16:00, the supply of electric power in the EVN on the part of the energy supplier to a maximum value P _m ax limited. In contrast, between 0:00 a.m. and 8:00 a.m. and between 4:00 p.m. and midnight, there is no limit to the power that can be fed into the grid.

Due to the feed-in power limited to P _Max , an operator of the regenerative EEA 22 and thus the charging option would be forced to regulate the regenerative EEA 22 during the period mentioned. This is especially the case if the charging option is none has stationary storage unit 26 or a stationary storage unit 26 present at the location of the charging option no longer has sufficient capacity to absorb energy. Accordingly, existing electrical energy is not used as a result of the curtailment of EEA 22 and the operator of the charging option suffers a financial loss. This is also the case if the operator of the EEA 22 receives a compensation payment from the energy supplier for the necessary curtailment of his EEA 22. The use of the charging stations 21 assigned to the charging option would be essentially random in nature and only driven by a current charging requirement from mobile storage units 15 each assigned to an electric vehicle 16. Even if there is a charging requirement, the charging station 21 of the charging option is only visited by a customer 10 if this is known to him. Even if it is known to him and the storage unit 15 assigned to his electric vehicle 16 has a need for charging, it can be the case that the charging and / or discharging process, due to a high volume of electric vehicles 16 at the charging station 21, only involves increased effort by the customer 10 can be done.

These disadvantages are avoided by the method according to the invention for coordinating charging and / or discharging processes of mobile storage units 15. Specifically, a customer 10 does not have to know the charging option himself, since he directs his request to the portal 1 as a central entity for mediating the request with potential charging options. By reserving a service-time profile 31 that characterizes its loading and / or unloading process to the customer 10 through the portal 1 in advance and authorizing the customer 10 to call it up, the waiting time - and thus an effort - of the customer 10 is reduced . By increasing the consumption profile 32 of the provider 27 of the charging option by the power-time profile 31 that characterizes the charging and / or discharging process to a modified consumption profile 33, the provider 27 has to regulate its regenerative EEA 22 less strongly. Specifically, he can use more of the existing power of his EEA 22, which is why his financial loss is significantly reduced. Since the charging stations 21 are supplied at least partially via the regenerative EEA 22 assigned to the charging option, a proportion of regeneratively generated energy in the mobile storage unit 15 increases - at least in comparison to a case in which the mobile storage unit is operated exclusively via the public EVN and with a mixture of regenerative and non-regeneratively generated power would be loaded there. LIST OF REFERENCE NUMBERS

Claims

PATENT CLAIMS

1. A method for coordinating charging and / or discharging processes of mobile storage units (15), each associated with an electric vehicle (16), with preferably regeneratively generated energy via a portal (1) connected to the Internet (9), with the steps:

The portal (1) provides data on a plurality of charging options, each charging option being assigned a charging station (21) which is at least partially fed by a regenerative energy generation system (22), and the data being one for each of the charging options Information about

o a geographical position of the charging station (21) assigned to the charging option, and

o include a specific energy price assigned to the charging option,

Receiving a request for a charging and / or discharging process from a communication device (1 1) of a customer (10) at the portal (1), the request as request data at least one time and / or amount of energy assigned to the charging and / or discharging process includes,

Comparison of the request data with an available performance curve of the charging option and / or a temporal availability of the charging station (21) assigned to the charging option for at least some of the plurality of charging options,

Generating a list of loading options in accordance with a positive result of the comparison, the list being visible through the communication device (1 1) and the following steps being carried out after selecting a loading option from the list via the communication device (11)

o Reserve a service-time profile (31) assigned to the request in the available service history of the selected charging option and / or a charging station (11) assigned to the request for the selected charging option, and o Authorize the customer (10) to carry out the opening and closing / or unloading process according to the reservation through the portal (1).

2. The method according to claim 1, characterized in that the charging station (21) - optionally in connection with a control unit assigned to the charging option (23) and the portal (1) - is set up to charge and / or discharge only on the basis of Start authorization.

3. The method according to claim 1 or 2, characterized in that the available power curve of the charging option takes into account a generation profile (34) generated by means of weather forecasts of the energy generation system (22) assigned to the charging option.

4. The method according to any one of claims 1 to 3, characterized in that the available performance of the charging option through the portal (1) and taking into account a consumption profile (32) transmitted to the portal (1) by consumers (25) of the charging option or by consumers (25) a provider (27) of the charging option is generated.

5. The method according to any one of claims 1 to 4, characterized in that the portal (1) takes into account a position associated with the mobile storage unit (15) when generating the list of loading options.

6. The method according to any one of claims 1 to 5, characterized in that the data assigned to the charging options additionally include information as to whether the charging station (21) assigned to the charging option enables inductive charging and / or discharging of the mobile storage unit (15) .

7. The method according to any one of claims 1 to 6, characterized in that the data of the loading options provided by the portal (1), in particular their available performance curve, is continuously updated by the portal (1).

8. The method according to any one of claims 1 to 7, characterized in that the data associated with the loading options additionally include information about a maximum possible power flow during loading and / or unloading.

9. The method according to any one of claims 1 to 8, characterized in that in addition to an amount of energy exchanged during charging and / or discharging between the charging station (21) and the mobile storage unit (15), the customer (10) has a duration of Charging and / or discharging at the charging station (21) is calculated or remunerated.

10. The method according to any one of claims 1 to 9, characterized in that the portal (1) in the event of a negative result of the comparison transmits a notification to the communication device (11) of the customer (10), which may contain changed request data.

11. The method according to any one of claims 1 to 10, characterized in that the data assigned to the charging options additionally includes information about a number of charging stations (21) assigned to the charging option or a location of the charging option.

12. The method according to any one of claims 1 to 1 1, characterized in that a calculation of costs of the loading and / or unloading process to the customer (10), and / or a calculation of proceeds from the loading and / or unloading process to the Provider automatically takes place via the portal (1).

13. The method according to any one of claims 1 to 12, characterized in that the regenerative energy generation system (22) and the charging station associated with the charging option (21), which is at least partially fed by the regenerative energy generation system (22), a common Have network connection point, are connected to the same local network transformer and / or are part of a jointly controlled virtual power plant (VPP).

14. Portal (1) for coordinating charging and / or discharging processes of mobile storage units (15) each associated with an electric vehicle (16), comprising:

a computer connected to the Internet (9) via a communication unit (3)

(2),

wherein the communication unit (3) is set up to receive a request from a communication device (11) of a customer (10) and to transmit an authorization for a charging and / or discharging process to the communication device (11) of the customer (10)

a data memory (4) for storing data of a plurality of loading options and possibly for storing request data assigned to the request,

an evaluation unit (5) for comparing the request with an available performance profile assigned to the loading options,

characterized in that the portal (1) is designed to carry out a method according to one of the preceding claims.

15. Portal (1) according to claim 14, characterized in that the portal (1), in particular its communication unit (3) is designed, the data associated with a loading option via a control unit (23) assigned to the loading option, optionally in connection with one of the loading option assigned further communication unit (24).