Method of wind turbine yaw angle control and wind turbine

A wind turbine, yaw angle technology, applied in wind turbine yaw angle control, wind turbine field, can solve problems such as long-term operation, regular inspection of resistance strain gauges, etc.
CN103649528AInactive Publication Date: 2014-03-19MITA TEKNIK
9 Cites 20 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MITA TEKNIK
Publication Date
2014-03-19
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention relates to the wind power engineering and to the method of controlling a yaw angle of the wind turbine equipped with a horizontal rotor shaft as well as to the wind turbine for implementing the method. According to the method of the present invention, the time difference between the time moments when the rotor blades are in the lower vertical position, the said time moments derived from the reference signal of the sensor connected to the rotor shaft, and the time moments when the blades are on one line with the wind direction and the tower, the said time moments derived from the periodic signal of the spurious amplitude modulation generated by the AC generator and caused by aerodynamic interaction between the blades and the tower, is used as the indication of actual position of the wind turbine rotor relative to the wind direction. The wind turbine of the present invention comprises a yaw controller including the functional units suitable for generating a control signal for rotating a nacelle of wind turbine based on the given time difference in order to compensate the existing yaw error.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to wind engineering and to a method of yaw angle control of a wind turbine equipped with a horizontal rotor shaft, and to a wind turbine controlled by such a method. Background technique

[0002] Wind power engineering is the most dynamically developed among the most promising directions for the use of renewable energies and has become a competitive player in the market for power generation.

[0003] Most modern wind turbines (WT) have three bladed rotors with a horizontal rotor shaft. Such a turbine requires some mechanism for pointing the rotor towards the wind and a corresponding yaw controller. The yaw control error is determined as the angle between the actual direction of the rotor axis and the wind direction. To achieve maximum conversion of kinetic wind energy, the yaw control error of the wind turbine (WT) is zero.

[0004] During yaw control, the nacelle of the wind turbine (WT) rotates around the vertical axis to min...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More