Apparatus and method for correcting direct drive generator model

A generator model and model correction technology, which is applied in design optimization/simulation, geometric CAD, special data processing applications, etc., can solve the problem of low model accuracy, improve product quality, reduce enterprise costs, and reduce cycle times Effect

Active Publication Date: 2020-03-17
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a correction device and method for a direct-drive generator model to solve the problem of low accuracy of the existing direct-drive wind generator model

Method used

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  • Apparatus and method for correcting direct drive generator model
  • Apparatus and method for correcting direct drive generator model
  • Apparatus and method for correcting direct drive generator model

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Embodiment Construction

[0033] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] figure 1 is a schematic diagram showing the structure of each level of the direct drive generator according to the embodiment of the present invention. Such asfigure 1 As shown, the sub-component level structure includes stator bracket, iron core, rotor bracket, magnetic steel, etc., the component level structure mainly includes stator, fixed shaft, rotor, rotating shaft, etc., and the component level structure includes stator and fixed shaft. The stator and fixed shaft assembly, the rotor shaft assembly composed of the rotor and the shaft, and bearings, etc., the system-level structure is a direct-drive generator system.

[0035] figure 2 is a block diagram showing a correction device of a direct drive generator model according to an embodiment of the present invention. refer to figure 2 , the correction device of the direct-drive generator...

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Abstract

The invention provides a direct-drive power generator model correction device and method. The correction device comprises a part level model correction unit for performing simulation mode calculationon a finite element model of each part and correcting the finite element model of each part according to an actual mode parameter and a simulation mode parameter of each part, a component level modelcorrection unit for building a finite element model of each component, performing simulation mode calculation on the finite element model of each component and correcting the finite element model of each component according to an actual mode parameter and a simulation mode parameter of each component, and a system level model correction unit for building a finite element model of a direct-drive power generator system, performing simulation mode calculation on the finite element model of the direct-drive power generator system and correcting the finite element model of the direct-drive power generator system according to an actual mode parameter and a simulation mode parameter of the direct-drive power generator system. The model is corrected in a mode of combining actual mode testing withsimulation mode calculation, so that the model accuracy can be improved and the ground test verification frequency can be reduced.

Description

technical field [0001] The invention relates to the technical field of wind power generation, more specifically, to a correction device and method for a model of a direct-drive wind power generating set. Background technique [0002] The vibration problem of the direct-drive wind turbine is caused by the coupling effect of multiple components, and the verification of the coupling dynamic characteristics is the prerequisite for the analysis of the coupling vibration mechanism of the whole machine, so it is very important to establish an accurate structural dynamic model. The structure of the direct-drive wind turbine is complex, and some structures have obvious nonlinearity. When the model of the direct-drive wind turbine established according to the current modeling method is used for various calculations, the calculation results and actual data exist. Large deviation, therefore, the accuracy rate of the existing direct-drive wind turbine model is not high. Contents of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17G06F30/23
CPCG06F30/17G06F30/23
Inventor 马金宝靖峰
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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