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Wind turbine generator dynamic response analysis method based on multi-platform co-simulation

A wind turbine and co-simulation technology, which is applied in the trial operation of wind turbines, wind power generation, engine functions, etc., can solve problems such as wind load modeling, dynamic response, etc. Effect

Inactive Publication Date: 2018-10-23
BEIJING UNIV OF TECH
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Problems solved by technology

[0007] However, most of the patents that have been published so far focus on the research of individual wind turbine components, or do some preliminary simulations on the whole wind power machine, and seldom consider wind load modeling and solve dynamic problems from the perspective of whole machine modeling. response

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0035]Can find out that the present invention relates to a kind of complete machine dynamics analysis method of megawatt-level wind power generator by accompanying drawing, concrete implementation process is as follows:

[0036] (1) The main parameters of the wind power generator involved in the example of the present invention are as shown in table 1 below:

[0037] Table 1 Main parameters of wind turbines

[0038]

[0039] (2) Carry out three-dimensional solid modeling of the main components of the wind turbine through Creo software, such as figure 1 As shown, the three-dimensional model includes the modeling of the blades, hub, tower, main shaft and nacelle of the wind turbine. The modeling of the blade is a relatively critical step. The following describes the modeling of the blade in detail. The wind turbine blade wing Type selection ...

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Abstract

The invention discloses a wind turbine generator dynamic response analysis method based on multi-platform co-simulation, and belongs to the technical field of wind turbine generators. Aiming at structural components of a wind turbine generator, 3D solid modeling is completed through a Creo platform, and a Creo model is imported into an ABAQUS finite element platform. According to the actual working conditions, the correct constraint relationship of each part of a finite element model of a whole unit in the ABAQUS is set, and simulation is conducted to obtain the intrinsic frequency and mode shape of an impeller assembly and the whole unit. Coupling response between the inside of the unit, that is, between an impeller and a tower, is discussed through response simulation, the natural vibration characteristics of key components and the whole unit are studied by using a finite element simulation method, the dynamic response characteristics of the wind turbine generator are obtained by using time-varying wind pressure distribution as the main excitation load, the wind turbine generator dynamic response analysis method based on multi-platform co-simulation has significances to improvingthe structure design of the unit and formulating effective diagnosis strategies.

Description

technical field [0001] The invention relates to a dynamic response analysis method, in particular to three-dimensional solid modeling, excitation wind load modeling, and finite element analysis of a large-scale wind turbine, and belongs to the technical field of wind turbines. Background technique [0002] Due to the increasingly serious problems of environmental pollution and energy shortage, the development and application of new energy in my country has achieved rapid development. By the end of 2015, the total installed capacity of wind power put into operation in my country reached 100 million kW, and the annual power generation was as high as 190 billion kWh, ranking first in the world both in terms of total installed capacity and annual power generation. At present, the main models put into use are above the megawatt level. [0003] my country has become a big wind power country, but it is far from a wind power manufacturing power, and some technical bottlenecks need ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50F03D13/30
CPCF03D13/30F05B2260/84G06F30/23Y02E10/72
Inventor 贾奇峰张建宇杜晓钟咸玉聪贾文强张侣倛
Owner BEIJING UNIV OF TECH
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