Electromechanical coordination suppression device for vertical axis wind turbine rotating spindle vibration

A technology of rotating the main shaft and vertical axis, which is applied in the control of wind turbines, wind turbines, machines/engines, etc. It can solve the problems that wind turbines cannot reach the maximum wind energy capture speed, reduce the wind energy capture efficiency of wind turbines, etc., and achieve reverse electric The brake torque is smooth and easy to control, the adjustment speed is fast, and the work efficiency is high

Inactive Publication Date: 2015-02-25
NANTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, the existing method of "suppressing the free vibration of the tower by reducing the speed of the wind turbine" is too conservative. Maximum wind capture speed

Method used

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  • Electromechanical coordination suppression device for vertical axis wind turbine rotating spindle vibration
  • Electromechanical coordination suppression device for vertical axis wind turbine rotating spindle vibration
  • Electromechanical coordination suppression device for vertical axis wind turbine rotating spindle vibration

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Embodiment Construction

[0053] refer to figure 1 , which is a flow chart of an embodiment of the electromechanical coordination suppression method for vibration of the rotating main shaft of a vertical axis wind turbine according to the present invention. This embodiment comprises the following steps:

[0054] S100, start.

[0055] S110. Obtain the vertical inclination of the rotating main shaft in real time.

[0056] The vertical inclination angle includes the inclination angle value α in the two orthogonal directions in the horizontal section of the main axis x and alpha y . The inclination angle value can be obtained by installing a two-axis inclination sensor on the stationary part at the top of the rotating spindle.

[0057] S120. Calculating the vibration intensity K of the rotating main shaft v .

[0058] The tremor intensity is defined as, K v = α x 2 ...

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Abstract

The invention discloses an electromechanical coordination suppression device for vertical axis wind turbine rotating spindle vibration. The electromechanical coordination suppression device comprises a two-shaft tilt angle sensor, a revolution speed sensor, an air velocity transducer, a wind driven generator, an electromagnetic rear axes brake mechanism, a revolving speed inner ring controller and an electromechanical coordination outer ring controller. The electromechanical coordination suppression device can measure and calculate current vibration intensity of a spindle in real time, suppresses vibration of the spindle, and enables a wind turbine to maintain mechanical stabilization and meanwhile obtain the highest wind energy capture efficiency as far as possible.

Description

[0001] This application is a divisional application with application number: 201210049193.0, application date: 2012.2.29, titled "Mechatronic Coordination Suppression Method and Device for Vibration of Rotating Main Shaft of Vertical-axis Wind Turbine". technical field [0002] The invention relates to the field of mechatronics control of a wind power generating set, in particular to an electromechanical coordination intelligent suppression method and device for the vibration of the rotating main shaft of a vertical axis wind power machine. Background technique [0003] Except for the establishment of experimental wind farms in a few areas of the world, vertical axis wind turbines have not yet been widely promoted, but their superior aerodynamic performance has attracted more and more attention from researchers in various countries. [0004] Structurally speaking, the vertical rotating main shaft structure of the vertical axis wind turbine belongs to the mast structure in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/06
CPCY02E10/74
Inventor 吴爱华吴国庆茅靖峰张旭东曹阳周井玲肖龙雪
Owner NANTONG UNIVERSITY
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