Abstract: A method for logging a user into a device for a power generation plant, using a service gateway, wherein an access authorization of the user for the device is stored on the service gateway, is disclosed. The method includes authenticating the user on the service gateway, sending a device access request using an access device from the user to the service gateway specifying an identifier of the device for the power generation plant, and comparing a device secret stored on the service gateway with a copy of the device secret generated using the device secret and stored on the device, via an SRP protocol.

Abstract: A method of detecting a serial arc fault in a DC-power circuit includes injecting an RF-signal with a narrow band-width into the DC-power circuit and measuring a response signal related to the injected RF-signal in the DC-power circuit. The method further includes determining a time derivative of the response signal, analyzing the time derivative, and signaling an occurrence of a serial arc fault in the power circuit based on the results of the analysis. A system for detecting an arc fault is configured to perform a method as described before.

Abstract: A method for defining authentication data of a user at an energy conversion device connected to a grid and a source via a network connection includes receiving at the energy conversion device, via the network connection, a request from the user to newly assign authentication data, receiving at the energy conversion device desired authentication data of the user via the network connection, and storing the desired authentication data in the energy conversion device for an authentication of the user in the event of subsequent attempts to access the energy conversion device, when the energy conversion device is disconnected from the connected grid within a first predefined time window after receiving the request.

Abstract: The disclosure relates to a method for setting a power class of an inverter, wherein the inverter has a device type plate containing information about the inverter which is device-specific and independent of the selected power class, and wherein the inverter has a class plate which is selected from a plurality of power class-specific class plates each assigned to one power class from a plurality of power classes and contains information about the assigned power class. The method includes capturing an image of the device type plate and the class plate and reading out the device-specific information and the information about the assigned power class from the data captured as an image,—transferring a setting sequence to the inverter, wherein the setting sequence has the information about the assigned power class,—setting the power class of the inverter using the setting sequence following authentication of the read-out information. The disclosure also relates to an inverter having a power class that can be set.

Abstract: To operate electrical devices, power consumptions of all the electrical devices are continually captured and assigned to the individual electrical devices and at least one desired result is achieved by virtue of at least a first control instance of the electrical devices, the operation of which helps to achieve a desired result, and a second control instance of the electrical devices, the operation of which likewise helps to achieve the desired result. The devices are operated in a coordinated fashion. To this end, measured values from multiple measured value transmitters are captured by operating the multiple electrical devices. Correlations between changes in the measured values of the individual measured value transmitters over time and changes in the power consumptions of the individual electrical devices over time are determined and the desired result is selected from a subgroup of results.

Abstract: A method of detecting a serial arc fault in a DC-power circuit includes injecting an RF-signal with a narrow band-width into the DC-power circuit and measuring a response signal related to the injected RF-signal in the DC-power circuit. The method further includes determining a time derivative of the response signal, analyzing the time derivative, and signaling an occurrence of a serial arc fault in the power circuit based on the results of the analysis. A system for detecting an arc fault is configured to perform a method as described before.

Abstract: A method of detecting a serial arc fault in a DC-power circuit includes injecting an RF-signal with a narrow band-width into the DC-power circuit and measuring a response signal related to the injected RF-signal in the DC-power circuit. The method further includes determining a time derivative of the response signal, analyzing the time derivative, and signaling an occurrence of a serial arc fault in the power circuit based on the results of the analysis. A system for detecting an arc fault is configured to perform a method as described before.

Abstract: A method for locking a connection between a connector and a mating connector arranged on an electric vehicle is disclosed. The connector is arranged on a charging cable connected to a charging post of a charging station, such as a charging cable fixedly connected to a charging post of a charging station. The connector is associated with a first locking element, and the mating connector is associated with a second locking element, wherein the first locking element and the second locking element cooperate to lock the connection between the connector and the mating connector, and each have an activated state and a deactivated state. The method includes operating the first locking element associated with the connector in an activated state in a first operating mode of the charging station to lock the connection between the connector and the mating connector when the second locking element associated with the mating connector is activated.

Abstract: The disclosure relates to a solar module, which includes a plurality of solar cells which are interconnected to generate a direct-voltage power at module terminals, and a receiving unit for receiving an accurate time signal. The solar module further includes a communication unit for the synchronous transmission of the received accurate time signal to an inverter. The inverter is connected to the solar module by means of direct-voltage lines. The disclosure also relates to an assembly that can be integrated into a solar module, and to an energy generation system having a solar module of this type.

Abstract: A method of detecting a serial arc fault in a DC-power circuit includes injecting an RF-signal with a narrow band-width into the DC-power circuit and measuring a response signal related to the injected RF-signal in the DC-power circuit. The method further includes determining a time derivative of the response signal, analyzing the time derivative, and signaling an occurrence of a serial arc fault in the power circuit based on the results of the analysis. A system for detecting an arc fault is configured to perform a method as described before.

Abstract: A method of detecting a serial arc fault in a DC-power circuit includes injecting an RF-signal with a narrow band-width into the DC-power circuit and measuring a response signal related to the injected RF-signal in the DC-power circuit. The method further includes determining a time derivative of the response signal, analyzing the time derivative, and signaling an occurrence of a serial arc fault in the power circuit based on the results of the analysis. A system for detecting an arc fault is configured to perform a method as described before.

Abstract: A method of detecting a serial arc fault in a DC-power circuit includes injecting an RF-signal with a narrow band-width into the DC-power circuit and measuring a response signal related to the injected RF-signal in the DC-power circuit. The method further includes determining a time derivative of the response signal, analyzing the time derivative, and signaling an occurrence of a serial arc fault in the power circuit based on the results of the analysis. A system for detecting an arc fault is configured to perform a method as described before.

Abstract: To operate electrical devices, power consumptions of all the electrical devices are continually captured and assigned to the individual electrical devices and at least one desired result is achieved by virtue of at least a first control instance of the electrical devices, the operation of which helps to achieve a desired result, and a second control instance of the electrical devices, the operation of which likewise helps to achieve the desired result. The devices are operated in a coordinated fashion. To this end, measured values from multiple measured value transmitters are captured by operating the multiple electrical devices. Correlations between changes in the measured values of the individual measured value transmitters over time and changes in the power consumptions of the individual electrical devices over time are determined and the desired result is selected from a subgroup of results.

Abstract: A method for the communication of system control units with multiple energy generating systems includes receiving request data from the system control units and system data from the energy generating systems at a common gateway, managing the system data and processing the request data in the gateway, and sending control commands to the energy generating systems and/or data responses to the system control units via the gateway. The request data and/or the system data are received in at least two different data models at the gateway, and translated from their respective data models into a metadata model. The translated system data are managed and the translated request data are processed in the gateway, resulting in data responses and/or control commands in the metadata model that are translated back into the data models of the specific system control units and/or energy generating systems, and transmitted to them by the gateway.

Abstract: For optimizing a chronological development of consumption of electric power by a group of different consumers with regard to a supply of electric power including electric power from at least one wind or solar power generator, characteristic time curves of the consumption of electric power are determined at a high temporal resolution. A prognosis is made of a chronological development of the supply of electric power from the at least one power generator for a future period of time, and a plan for apportioning electric power to the individual consumers within the future period of time is made based on the characteristic time curves of the consumption of electric power by the individual consumers, the prognosis, and user goal setting by a user of the consumers resulting in different weightings of consumption of electric power by different consumers and supply of electric power by different power sources.

Abstract: A method for the communication of system control units with a plurality of spatially distributed energy generating systems, which jointly feed into a continuous supply network for electrical energy, includes receiving request data from the system control units and system data from the energy generating systems at a gateway that is operating as a common gateway, managing the system data in the gateway and processing the request data in the gateway, and sending control commands to the energy generating systems and/or data responses to the system control units that result from the processing of the request data via the gateway.

Abstract: A method of communication of distributed devices handling electric energy with communication partners via the Internet includes programming rules in a server. The rules determine between which device and which communication partner a communication connection is to be mediated based on generic properties of the devices, generic properties of the communication partners and an initializing time-variable datum. The communication connection is a point to point, point to multi point or multi point to multi point connection via the internet. Data are transmitted from each device and each communication partner to the server via the Internet. These data include both a communication address and attributes indicative of the generic properties of the device or the communication partner, respectively. The communication connection is mediated between the device and the communication partner determined by the rules in response to a value of the initializing time-variable datum also defined by the rules.

Abstract: A method of building a wireless communication network between a plurality of pre-defined devices which include spatially distributed inverters for feeding electric energy into an AC power grid and which each have a spatially limited range in wireless communication is provided. The method includes the steps of assimilating the pre-defined devices for a limited period of time, and in the step of assimilating, generating at least one network ID and persistently storing the at least one network ID in each pre-defined device participating in the step of assimilating. The method further includes, after the step of assimilating, connecting each pre-defined device exclusively to such other pre-defined devices in which network IDs originating from the same step of assimilating are stored.

Abstract: For optimizing a chronological development of consumption of electric power by a group of different consumers with regard to a supply of electric power including electric power from at least one wind or solar power generator, characteristic time curves of the consumption of electric power are determined at a high temporal resolution. A prognosis is made of a chronological development of the supply of electric power from the at least one power generator for a future period of time, and a plan for apportioning electric power to the individual consumers within the future period of time is made based on the characteristic time curves of the consumption of electric power by the individual consumers, the prognosis, and user goal setting by a user of the consumers resulting in different weightings of consumption of electric power by different consumers and supply of electric power by different power sources.

Abstract: A method of building a wireless communication network between a plurality of pre-defined devices which include spatially distributed inverters for feeding electric energy into an AC power grid and which each have a spatially limited range in wireless communication is provided. The method includes the steps of assimilating the pre-defined devices for a limited period of time, and in the step of assimilating, generating at least one network ID and persistently storing the at least one network ID in each pre-defined device participating in the step of assimilating. The method further includes, after the step of assimilating, connecting each pre-defined device exclusively to such other pre-defined devices in which network IDs originating from the same step of assimilating are stored.