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AssigneeSiemens Energy Global GmbH & Co. KG
InventorsPeter Hamberger, Holger Herterich, Franz Klammler, Rüdiger Kutzner, Harald Mayer, Marc Weber, Vitalij Fleischhauer, Christian Roland
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A method identifies asymmetrical vibrations during the operation of an electric device which is connected to a high-voltage grid. Vibrations of the electric device are detected using vibration sensors which provide measured values on the output side. The measured values and/or values derived from the measured values are transmitted to a communication unit via a close-range communication connection. The measured values and/or the values are transmitted by the communication unit to a data processing cloud via a far-range communication connection. The measured values are separated into frequency components by the data processing cloud using a Fourier transformation, thereby obtaining a frequency spectrum. Odd and even frequency components of the frequency spectrum are ascertained based on a base frequency of the high-voltage supply grid and put into a ratio R relative to one another. The presence of asymmetrical vibrations is indicated if the ratio R exceeds a specified threshold.
A method for identifying asymmetrical vibrations when operating an electrical device being connected to a high-voltage supply grid, which comprises the steps of:
Dependencies are inferred from the claim text.