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Dynamic balance emendation method of 1.5MW wind power generator with radial fan and rotor

A wind power generator, 1.5MW technology, applied in wind power generation, centering/balancing rotors, etc., can solve the problems of large unbalance of radial fan and rotor body, high dynamic balance requirements, etc., achieve the best dynamic balance index and reduce vibration Effects of speed and noise, reduction of unbalance

Inactive Publication Date: 2012-01-25
DONGFANG ELECTRIC CORPLESHAN NEW ENERGY EQUIP
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] Wind turbines are high-speed units with high requirements for dynamic balance. In the process of manufacturing and assembling the rotors of 1.5MW wind turbines, there are many factors that affect the dynamic balance of the rotors. Relatively speaking, the radial fan and the rotor body (with Left and right rotating fans) have the largest amount of unbalance, and the current correction method generally only corrects the dynamic balance of the rotor body, while ignoring the influence of the radial fan during operation

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  • Dynamic balance emendation method of 1.5MW wind power generator with radial fan and rotor
  • Dynamic balance emendation method of 1.5MW wind power generator with radial fan and rotor
  • Dynamic balance emendation method of 1.5MW wind power generator with radial fan and rotor

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] A 1.5MW wind power generator with a radial fan rotor dynamic balance correction method, which includes the following steps:

[0015] (1) A balance, such as figure 1 , connect one end of the dynamic balancing mandrel 2 to the coupling of the dynamic balancing machine 1, and connect the other end of the dynamic balancing mandrel 2 to the radial fan 3, run the dynamic balancing machine 1, and set the residual unbalance of the radial fan 3 , according to the data and phase balance displayed by the dynamic balancing machine 1, repeat the operation until the unbalance of the radial fan 3 is within the set value, and complete the balance of the radial fan 3;

[0016] (2) Secondary balance, such as figure 2 , hang the rotor 4 on the dynamic balancing machine 1, connect the transmission end of the rotor 4 with the dynamic balancing machine 1 through a coupling, run th...

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Abstract

The invention discloses a dynamic balance emendation method of a 1.5MW wind power generator with a radial fan and a rotor. The dynamic balance emendation method comprises the following steps of: 1, primarily balancing to complete the balance of a radial fan (3); 2, secondarily balancing to complete the balance of partial rotor (4) except for the radial fan (3); and finally balancing. The dynamic balance emendation method has the beneficial effect of respectively carrying out primary balance, secondary balance and final balance on the radial fan and the partial rotor (the rotor body is provided with a left cyclone fan and a right cyclone fan) except for the radial fan, thus the vibration speed and noise of the rotor are reduced, and the unbalance amount of the radial fan and the rotor body is decreased so that the wind power generator reaches an optimal dynamic balance index.

Description

technical field [0001] The invention relates to the technical field of generators, in particular to a dynamic balance correction method for a 1.5MW wind generator with a radial fan rotor. Background technique [0002] The dynamic balance performance of the motor is a crucial factor in the operation of the motor. Because when the rotor rotates, an unbalanced centrifugal force or centrifugal moment is generated, which is the main reason for the vibration and noise of the motor. At present, the most common method is to use a dynamic balancing machine to perform dynamic balance correction on the motor. [0003] Wind turbines are high-speed units with high requirements for dynamic balance. In the process of manufacturing and assembling the rotors of 1.5MW wind turbines, there are many factors that affect the dynamic balance of the rotors. Relatively speaking, the radial fan and the rotor body (with Left and right rotating fans) have the largest amount of unbalance, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/16
CPCY02E10/725Y02E10/72
Inventor 王明川王梓云杨向国
Owner DONGFANG ELECTRIC CORPLESHAN NEW ENERGY EQUIP
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