Aerogenerator vibration and noise inhibition method and apparatus

A technology for wind generators and noise suppression, which is applied in the direction of wind turbines, wind motor combinations, wind power generation, etc., can solve the problems of increasing the complexity and manufacturing cost of the generator manufacturing process, reducing the power density and energy index of the generator, etc. Achieve the effect of increasing complexity and manufacturing cost, achieving vibration and noise
CN104967378AActive Publication Date: 2015-10-07BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
Publication Date
2015-10-07

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Abstract

The invention provides an aerogenerator vibration and noise inhibition method and apparatus. The method comprises: calculating the given valve of generator field weakening control parameters in dependence on the given value of generator electromagnetic active power and the frequency of an generator; and controlling the generator in dependence on the given value of the generator field weakening control parameters. According to the invention, the magnetic loading of the generator can be reduced through field weakening control, and the vibration and noise of the generator are restrained. The mechanical structure and electromagnetic design of the generator do not need to be changed, thereby not influencing the power density and energy index of the generator, and not increasing the manufacture process complexity and manufacture cost of the generator.
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Description

technical field

[0001] The invention relates to the technical field of wind power, in particular to a method and device for suppressing vibration and noise of a wind power generator. Background technique

[0002] With the development and popularization of wind power generation technology, the capacity of wind power generators is continuously increasing, and the vibration and noise problems in the operation of wind power generators cannot be ignored more and more, which has become an urgent problem to be solved in the development of wind power industry.

[0003] Wind turbine is an important device to realize the conversion of mechanical energy to electrical energy. There are electromagnetic forces of various frequencies such as the fundamental wave and harmonic frequency, the cogging frequency and its multiplier in the wind turbine, and the mechanical structure mode of the stator and rotor of the wind turbine is also very complex. When the order and frequency of the force wa...

Claims

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