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Method for damping torsional vibrations in power generation plant

A technology that generates equipment and torsional vibration, applied in mechanical equipment, engines, wind power generation, etc., can solve problems such as wear and tear, short replacement intervals, reduced equipment profits, and difficulty in replacing parts.

Inactive Publication Date: 2014-09-10
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Constant fluctuating loads increase the wear of the associated components and lead to shorter replacement intervals, which represent a financial and technical burden for plant and network operators and reduce plant profitability
Especially in view of the expected growing development of wind energy installations in the offshore area, this will play an increasingly important role in the foreseeable future, since it is more difficult to replace damaged components there

Method used

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  • Method for damping torsional vibrations in power generation plant
  • Method for damping torsional vibrations in power generation plant

Examples

Experimental program
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Embodiment Construction

[0025] figure 1 The schematic diagram shows the basic structure of an energy generating plant 100 which is provided for carrying out the invention. The energy generation plant 100 is designed as a wind power plant with a rotor 1 and a generator 6, said rotor and said generator being mechanically interconnected via a drive train with a rotor driven shaft 2, a Transmission 3 , a clutch 4 and a generator drive shaft 5 . The rotor 1 is mounted on the rotor-side end 1 ′ of the drive train 2 - 5 , and the generator 6 is mounted on the generator-side end 6 ′. Two position sensors or angle sensors 7 , 8 on the rotor side 1 ′ and on the generator side 6 ′ detect the angular position φ R (rotor 1) and φ G (generator 6 ), the angular position is transmitted to a computing unit 9 . The computing unit is programmed technically to carry out the method according to the invention. The generator load torque M is carried out in this computing unit 9 on the basis of sensor signals G and t...

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Abstract

The invention relates to a method for damping torsional vibrations in a power generation plant (100). The power generation plant (100) is equipped with a drive train (2-5), a rotor (1), which is fitted at a rotor-side end (1') of the drive train (2-5), and a generator (6), which is driven via the drive train (2-5) and is fitted at a generator-side end (6') of the drive train (2-5), wherein an angular difference between a first point (1') and a second point (6') on the drive train (2-5) is determined over time and, on the basis of the time profile of the determined angular difference, torsional vibrations in the drive train (2-5) are damped by correspondingly presetting a load torque (MG) of the generator and a drive torque (MA) of the rotor (1).

Description

technical field [0001] The invention relates to a method for damping torsional vibrations in an energy generating device, a computing unit for carrying out the method and a corresponding energy generating device. Background technique [0002] Although the invention is described within the framework of the application mainly with reference to a wind power plant, the invention is not restricted thereto but can in principle be used in all types of power plants and plants in which shafts, Torsional vibrations of axles, etc., in particular shafts and axles with interposed transmissions. [0003] Drive trains consisting of components such as transmissions, clutches and connecting elements (shafts) are important components of various electrical energy generating plants, such as wind power plants, hydroelectric plants, etc. The drive train fulfills the task of establishing a mechanical connection between a drive (for example a rotor of a wind energy plant) and an output (for exampl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/10F03D7/02
CPCF03D7/0224Y02E10/723F03D7/042F03D7/0272F05B2270/326F05B2270/334F03D7/0296Y02E10/72
Inventor M.默贝R.施密特A.奎尔
Owner ZF FRIEDRICHSHAFEN AG
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