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Wind turbine blade aerodynamic balance monitoring and adjustment system and monitoring and adjustment method

An aerodynamic balance and blade technology, which is used in the monitoring of wind turbines, wind turbines, and control of wind turbines to avoid data inaccuracies and monitor data objectively.

Active Publication Date: 2020-07-28
SANY ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a wind power generating set blade aerodynamic balance monitoring and adjustment system and monitoring and adjustment method to solve the system platform that does not use structural loads to monitor and adjust the aerodynamic balance of the blades in the prior art

Method used

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  • Wind turbine blade aerodynamic balance monitoring and adjustment system and monitoring and adjustment method
  • Wind turbine blade aerodynamic balance monitoring and adjustment system and monitoring and adjustment method
  • Wind turbine blade aerodynamic balance monitoring and adjustment system and monitoring and adjustment method

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Embodiment 1

[0065] Such as figure 1 As shown, the embodiment of the present invention provides a wind turbine blade aerodynamic balance monitoring and adjustment system, including a sensor group 100 and a main controller 200;

[0066] The sensor group 100 is used to monitor the load data of the structural components of the wind power generator in real time, and detect the structural components of different blades at the preset wind rotor azimuth angle when different blades pass through the preset wind rotor azimuth angle at the moment load data;

[0067] The main controller 200 is used to judge whether the aerodynamics of different blades are balanced according to the load data of the structural components; and when the aerodynamics of the current blade is unbalanced, calculate the unbalance degree of the current blade;

[0068] The main controller 200 is further configured to perform an independent pitching action on the current blade according to the unbalance degree.

[0069] Analysi...

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Abstract

The invention provides a wind turbine generator system blade pneumatic balance monitoring and adjusting system and a monitoring and adjusting method. The wind turbine generator system blade pneumaticbalance monitoring and adjusting system comprises a main controller and a sensor set. The sensor set is used for monitoring load data of structural parts of a wind turbine generator in real time, anddetecting load data of the structural parts when different blades are located at the preset wind wheel directional angle at the moment when the different blades pass through the preset wind wheel directional angle. The main controller is used for judging whether the pneumatic states of the different blades are balanced or not according to the load data of the structural parts, obtaining the degreeof unbalance of the current blade through calculation when the pneumatic state of the current blade is unbalanced, and conducting independent variable-pitch motion on the current blade according to the degree of unbalance. By the adoption of the monitoring and adjusting mode, the pneumatic balance of the blades can be monitored according to the structural load, the degree of unbalance can also beobtained according to the monitoring structural judgment, and finally the independent variable-pitch motion is conducted on the current blade according to the degree of unbalance.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a monitoring and adjusting system and a monitoring and adjusting method for the aerodynamic balance of blades of a wind power generating set. Background technique [0002] Wind power refers to converting the kinetic energy of wind into electrical energy. The principle of wind power generation is to use the wind to drive the windmill blades to rotate, and then increase the speed of rotation through the speed increaser to promote the generator to generate electricity. [0003] The study found that the imbalance of the aerodynamic characteristics of the blades of the wind turbine will affect the load and life of the wind turbine. The reason for the aerodynamic imbalance of the blades of the wind turbine is mainly due to the error in the installation of the blade and the deformation of the blade after the long-term operation of the wind turbine. . [0004] For example...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/04F03D17/00
CPCF03D7/0224F03D7/024F03D17/00F05B2260/70F05B2270/331Y02E10/72
Inventor 符智李建涛
Owner SANY ELECTRIC CO LTD
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