Siemens Aktiengesellschaft

Jeremy Ralph Wiles

Joachim Bamberger

Michael Bernhard Buhl

Terrence Chen

Shanhui Sun

Ti-chiun Chang

Jan Ernst

Andrei Szabo

Florian Steinke

Ulrich Münz

Philipp Wolfrum

Eberhard Ritzhaupt-Kleissl

Stefan Jessenberger

Spartak Rasov

Archana Sapkota

Ulrich MÜNZ

A method and device which operates to record and evaluate an output of electrical energy of a hybrid power plant, wherein, in accordance with time and/or load, at least one expected generable and usable energy contribution resulting from the utilization of renewable energy sources and one expected energy contribution resulting from the utilization of convention energy carriers are recorded with different tariffs.

Method and device for recording and evaluating an output of electrical energy of a hybrid power plant

A method for predicting a performance of an electrical energy storage system includes receiving, as input, time series of data points pertaining to a plurality of operational parameters of the electrical energy storage system. The input time series is provided to a model that simulates dynamics of the electrical energy storage system. A plurality of performance indicators of the electrical energy storage system may be calculated based on the simulated dynamics of the electrical energy storage system.

Performance tracking of an electrical energy storage system

A method for predicting short-term cloud coverage includes a computer calculating an estimated cloud velocity field at a current time value based on sky images. The computer determines a segmented cloud model based on the sky images, a future sun location corresponding to a future time value, and sun pixel locations at the future time value based on the future sun location. Next, the computer applies a back-propagation algorithm to the sun pixel locations using the estimated cloud velocity field to yield propagated sun pixel locations corresponding to a previous time value. Then, the computer predicts cloud coverage for the future sun location based on the propagated sun pixel locations and the segmented cloud model.

Short term cloud coverage prediction using ground-based all sky imaging

A power balance-dependent operating parameter and a surroundings parameter of a first energy source, such as a renewable energy source, are provided. A variable target operating parameter for the first energy source is ascertained dependent on the detected surroundings parameter. The target operating parameter can characterize a first energy source state in which a maximally possible output would be generated under the current given conditions of the surroundings. The operating frequency is then controlled dependent on the detected power balance dependent operating parameter and the ascertained target operating parameter such that a deviation of the operating frequency from a specified frequency is coupled to a deviation of the detected power balance-dependent operating parameter from the ascertained target operating parameter.

Method and control device for controlling an operating frequency of an energy source in an AC voltage network

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Gräfenberg, Germany

Jeremy Ralph Wiles