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Giant magnetostrictive flap wind turbine blade vibration reduction system and control method

A giant magnetostrictive, wind turbine blade technology, applied in the control of wind turbines, wind turbines, wind turbine components, etc., can solve the problems of limited, reduced total cost, and rising wind power total cost.

Inactive Publication Date: 2013-01-30
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Application Information

AI Technical Summary

Problems solved by technology

The total cost of wind power increases dramatically as blade loads affect the loads of other components such as mechanical transmissions and towers
Simply reducing the cost of traditional fixed-wing blades has limited effect on reducing the total cost

Method used

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  • Giant magnetostrictive flap wind turbine blade vibration reduction system and control method
  • Giant magnetostrictive flap wind turbine blade vibration reduction system and control method
  • Giant magnetostrictive flap wind turbine blade vibration reduction system and control method

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Embodiment Construction

[0068] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0069] figure 1 It is a structural block diagram of a wind turbine blade damping system with a giant magnetostrictive flap structure provided by the present invention. figure 1 Among them, the system includes a wind turbine blade with a giant magnetostrictive flap structure, a wind speed laser radar, an embedded vibration control card and a host computer; the wind turbine blade with a giant magnetostrictive flap structure includes three optical fiber strain sensor and three giant magnetostrictive actuators; the embedded vibration control card includes an ARM main control chip, an FPGA circuit, an analog-to-digital converter, a first low-pass filter, a signal conditioner, a voltage-controlled constant current source, a...

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Abstract

The invention discloses a giant magnetostrictive flap wind turbine blade vibration reduction system and a control method, belonging to the technical field of wind power generation. The invention adopts the technical scheme that the system comprises a giant magnetostrictive flap wind turbine blade, a wind speed measurement laser radar, an embedded vibration control card and an upper computer. The giant magnetostrictive flap wind turbine blade comprises three fiber optic strain sensors and three giant magnetostrictive actuators. The embedded vibration control card comprises an ARM (Advanced RISC Machines) main control chip, an FPGA (Field Programmable Gate Array) circuit, an A / D (Analog to Digital) converter, a first low pass filter, a signal conditioner, a voltage-controlled constant current source, a second low pass filter, a digital to analog converter and a USB (Universal Serial Bus) port. The giant magnetostrictive flap wind turbine blade vibration reduction system and the control method have the beneficial effects that vibration reduction of the wind turbine blade which is provided with flap structures is realized under small amplitude and low frequency, and the antijamming capability of the system is improved.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a vibration reduction system and a control method for a wind turbine blade with a giant magnetostrictive flap structure. Background technique [0002] There are abundant wind resources in the world. In the past ten years, with the world's increasing attention to environmental issues, high oil prices and increasingly mature wind power technology, global wind power has achieved extraordinary development, and the development of wind power in my country has been particularly rapid. The grid-connected power generation of large wind turbines and large wind farms is becoming the main form of effective utilization of wind energy. [0003] During the rotation of wind turbine blades, they are subjected to rapidly fluctuating loads from various sources of airflow, including turbulent wind tower shadows, wind shear, and yaw. The air flow produces irregular elastic...

Claims

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Application Information

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IPC IPC(8): F03D7/00F03D11/00
CPCY02E10/723Y02E10/722Y02E10/72
Inventor 张文广刘吉臻谢力曾德良牛玉广
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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