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Noise simulation method of wind generating set

A technology for wind turbines and wind turbines, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as incompatibility, failure to consider vibration response, data difficulties, etc.

Active Publication Date: 2013-12-25
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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Problems solved by technology

However, the existing electromagnetic simulation software uses some approximations and simplified processing calculations for the output of noise source data, which fails to consider the vibration response under the operating state of the whole machine. There is a certain degree of "incompatibility" in the above, so that it is difficult to read the required data during noise simulation calculation

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  • Noise simulation method of wind generating set

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Embodiment Construction

[0015] The present invention is described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0016] figure 1 is a flowchart illustrating a noise simulation method for a wind power generating set according to an exemplary embodiment of the present invention.

[0017] refer to figure 1 , in step S101, according to the overall input load of the wind generator, the motor flexible structure model of the wind generator and the magnetic tension load, a multi-body dynamics simulation is performed on the wind generator to output a dynamic excitation load. Specifically, wind turbine designers can desi...

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Abstract

The invention discloses a noise simulation method of a wind generating set. The noise simulation method comprises the following steps of (a), according to wind power generator overall input load and a flexible structure model and magnetic tensile load of a wind power generator, performing many-body dynamics simulation on the wind power generator to output dynamic incentive load; (b), according to a structural style and a noise reduction structure of the wind power generator, establishing an acoustic boundary element model or a finite element model in the wind power generator; (c), applying the dynamic incentive load to the established acoustic boundary element model or finite element model in the wind power generator, and performing simulating calculation on noise diffraction and distribution of the power generator according to the sound field diffraction theory of a boundary element or a finite element.

Description

technical field [0001] The present invention relates to a noise simulation method for a wind power generating set, more specifically, relates to a method for obtaining the dynamics of generating noise by using multi-body kinematics soft simulation through the load data and design working conditions adopted in the design of the wind power generator Noise simulation methods for excitation sources. Background technique [0002] Generator noise reduction for large wind turbines is an important part of controlling wind turbine noise. The existing noise reduction measures for wind turbines are mainly methods such as measuring the tone and avoiding it or setting up an overall noise reduction control system (such as CN101818722A and CN101718582B). However, these methods lack specific analysis and research on the detailed noise sound field distribution and its characteristics, and many processing methods are based on testing, experimenting with various noise reduction methods, chang...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 杨振兴张志弘
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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