Sma Solar Technology Ag

Raimund Thiel

Dirk Schlote

Marcel Kratochvil

Rainer Schmitt

Bjoern Magnussen

Michael Viotto

Stefan Boerger

Jens Klein

Matthias Groene

Andreas Strusch

Marek Seeger

Stefan Börger

Veit Dominik Kunz

Mirko Wischer

Christian Hoehle

Stefan Schmidt

Rachel Anne Hegemann

Georg Engelhard

Ingo Hanke

Tobias Graf

Björn Magnussen

Christian Höhle

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.

Method for logging an authorized user in to a device, in particular to a device for a power generation plant, and power generation plant with device

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.

Method of and system for detecting a serial arc fault in a power circuit

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.

Method and apparatus for operating electrical devices in mutually coordinated fashion

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.

Method for the communication of system control units with a plurality of energy generating systems via a gateway, and correspondingly configured and programmed data server

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.

Optimized load management

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.

Communication with distributed devices handling electric energy via the internet

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.

Wireless communication network between participants of an assimilation step

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Bad Zwesten, Germany

Raimund Thiel