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Anti-icing control system for wind turbine blades and method for preparing wind turbine blades with anti-icing performance
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A technology for wind power blades and anti-icing, applied in wind power generation, mechanical equipment, wind engines, etc., can solve the problems of high thermal deformation temperature of resin, difficult to promote, unsatisfactory deicing effect of large blades, etc.
Active Publication Date: 2017-01-18
中复连众(玉溪)复合材料有限责任公司
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Problems solved by technology
This method is limited by the structure of the blade. The windward side that needs heat has a small thermal conductivity due to the material, especially for large blades. The deicing effect is not ideal.
If the heating temperature is too high, there is a high requirement for the thermal deformation temperature of the resin used in the blade, and it is difficult to promote it in practical applications.
However, the electric heating method has not yet been ideally applied to the heating of fan blades.
Method used
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Embodiment 1
[0060] Such as figure 1 Shown: an anti-icing control system for wind turbine blades, which mainly includes: a monitoring unit, a control unit and a heating unit;
[0061] The monitoring unit includes a temperature sensor (1) installed on the surface of the blade, and a temperature and humidity sensor of the environment where the blade is located.
[0062] (2);
[0063] The control unit comprises a temperature and humidity transmitter (3), a PLC controller (4) connected to the temperature and humidity transmitter (3), and a solid state relay (5) connected to the PLC controller (4);
[0064] The heating unit includes an electric heating material (6) and a power supply (7) connected to the electric heating material (6);
[0065] The temperature sensor (1) and the temperature and humidity sensor (2) are connected to the temperature and humidity transmitter (3) respectively;
[0066] The solid-state relay (5) is connected to the PLC (4) to realize switching on and off of the pow...
Embodiment 2
[0070] A method for preparing a wind turbine blade with anti-icing performance, comprising the following steps:
[0071] a. Prepare the suction surface shell and the pressure surface shell provided with the electric heating material by vacuum infusion molding process, and connect the electric heating material to the main lead wire through the branch wire;
[0072] b. Use structural glue to bond the suction side shell and pressure side shell with electric heating material prepared in step a, and the prefabricated shear web into one, to make a semi-finished wind power blade; then trim the semi-finished product, and Paste glass fiber cloth pre-impregnated with resin on the inside and outside of the leading edge and trailing edge of the blade for reinforcement;
[0073] c. Cut and drill the root of the semi-finished wind power blade, then spray a protective coating on its surface, and then install the bolt fasteners at the blade root;
[0074] d. Connect the root of the wind powe...
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Abstract
The invention discloses an anti-icing control system of a wind turbine blade and a manufacturing method of the wind turbine blade with the anti-icing performance. The anti-icing control system mainly comprises a monitoring unit, a control unit and a heating unit. The anti-icing control system of the wind turbine blade is reasonable in structural design, convenient to install and high in automation degree and intelligentization degree, can effectively heat the wind turbine blade, can avoid the situation that negative effects are generated on resin and protective coatings of the blade due to the fact that the temperature of the surface of the blade is too high, and can effectively prevent the blade from icing. The manufacturing method is reasonable in technological design, high in maneuverability and stable in technology. A suction surface shell of the wind turbine blade and a pressure surface shell of the wind turbine blade are formed by wrapping middle cores by inner skin and outer skin. Electric heating materials are located on the surface of the blade or between glass fiber cloth of the outer skin of the blade or the inner side of the glass fiber cloth of the outer skin of the blade, the electric heating materials and a surface temperature sensor are integrally formed, and the wind turbine blade with an electric heating system and with the anti-icing performance can be obtained through manufacturing.
Description
technical field [0001] The invention relates to a wind power blade, in particular to a wind power blade anti-icing control system and a method for preparing a wind power blade with anti-icing performance. Background technique [0002] As an important branch of new energy, wind energy has attracted widespread attention due to its clean, safe and stable characteristics. A wind turbine is a device that converts wind energy into electrical energy. As one of the core components of a wind turbine, the quality of the fan blade directly affects the quality of the wind turbine. The bigger the blade, the longer the blade, and the higher the performance and quality requirements of the blade. In severe cold weather, fan blades tend to freeze during operation. The experimental results show that the initial icing position of the blade shape of the fan mainly occurs at the leading edge of the blade, and the amount of icing at the root of the blade is small, and it mainly spreads around t...
Claims
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Application Information
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