Method for determining an efficiency and/or for calibrating a torque of a drivetrain, in particular of a wind turbine

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United States of America Patent

PATENT NO 11828266
APP PUB NO 20210156361A1
SERIAL NO

15733585

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A method for determining an efficiency and/or calibrating a torque of a drivetrain comprises two tests. The drivetrain has a motor-side end at a main shaft connectable to a motor and a generator-side end, with a generator arranged between the ends. In a first test, the motor-side end of the drivetrain is driven. A variable dependent on the main shaft torque is determined at the motor-side end of the drivetrain and an electrical power Pelec is determined at the generator-side end of the drivetrain. In a second test, the generator-side end of the drivetrain is driven and the variable dependent on the main shaft torque is determined at the motor-side end and the electrical power is determined at the generator-side end. An efficiency and/or calibration parameters is/are determined from the electrical power values and the variables dependent on the main shaft torque determined in the first test and second tests.

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Patent Owner(s)

Patent OwnerAddress
FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E VHANSASTRASSE 27C 80686 MÜNCHEN 80686

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eich, Norbert Bremerhaven, DE 2 8
Pilas, Martin Bremerhaven, DE 1 0
Wenske, Jan Bremerhaven, DE 4 2
Zhang, Hongkun Bremerhaven, DE 14 21

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