Control method of wind turbine generator yaw damping moment

A wind turbine and control method technology, which is applied in the control of wind turbines, wind energy power generation, wind turbines, etc., can solve the problems that yaw damping cannot be automatically adjusted, inconvenient maintenance, and high failure rate, and achieve real-time optimal system performance and control. Simple, low maintenance effect

Active Publication Date: 2016-11-09
QUFU NORMAL UNIV +1
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Problems solved by technology

[0006] It can be seen that the traditional yaw system has defects such as high

Method used

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  • Control method of wind turbine generator yaw damping moment
  • Control method of wind turbine generator yaw damping moment
  • Control method of wind turbine generator yaw damping moment

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[0028] The present invention will be further described in detail below in conjunction with the drawings.

[0029] Such as figure 1 As shown, the electromagnetic yaw system includes a yaw motor, a support frame 3, a pressure sensor 4, a guide bearing 5, and an anemometer 6. The yaw motor is a disc synchronous motor, which includes a rotor 1 and a stator 2, and the rotor 1 adopts DC The excitation has a DC winding, and the stator 2 has a three-phase winding. The rotor 1 is fixed to the nacelle through the support frame 3, that is, one end of the support frame 3 is fixed with the rotor 1 by bolts, and the other end is fixed to the nacelle; the stator 2 is fixed on the tower. The pressure sensor 4 is installed between the nacelle and the tower to detect the pressure of the nacelle on the tower. The guide bearing 5 is fixed to the tower, and the nacelle is fixed to the guide bearing 5. The guide bearing 5 ensures that the nacelle always rotates around the tower axis during yaw. The...

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Abstract

The invention relates to a control method of a wind turbine generator yaw damping moment, and belongs to the technical field of wind power generation. The method comprises the steps that an electromagnetic yaw system is adopted for controlling the yaw damping moment in real time, when the wind direction is changed, the wind power rotating torque of wind power action on an engine room is calculated at first; if the wind power rotating torque is smaller than driving torque needed by yaw of the engine room, the current of a yaw motor rotor is adjusted, so that the generated electromagnetic attraction force is equal to the gravity of the engine room so as to reduce the yaw damping torque; if the wind power rotating torque is larger than or equal to the driving torque needed by yaw of the engine room, the current of the yaw motor rotor is adjusted, so that the generated electromagnetic attraction force is smaller than the gravity of the engine room, and the generated friction resisting moment increases the yaw damping torque; three-phase alternating current is led into the yaw motor rotor and then the engine room is driven to perform yawing according to the given yaw rotating speed. The yaw damping torque of the wind turbine generator is regulated in real time, and the control method has the advantages of being easy and convenient to control, accurate in wind alignment, low in yaw energy consumption, free of noise, little in maintenance and the like.

Description

technical field [0001] The invention relates to a control method, in particular to a control method for the yaw damping moment of a wind turbine, and belongs to the technical field of wind power generation. Background technique [0002] The yaw system is an essential part of the horizontal axis wind turbine. At present, the large and medium-sized wind turbines at home and abroad all use active yaw gear-driven yaw systems. The yaw system is generally composed of yaw gear ring, side bearing, sliding pad holding device, up and down and side sliding pads, yaw driving device, adjusting bolts, yaw limit switch, proximity switch, wind speed and direction instrument, etc. Among them, the yaw driving device includes a yaw motor, a reduction gearbox, and a pinion, which are fastened to the main frame of the nacelle by bolts. [0003] The working principle of this yaw system is: when the wind direction changes, the control system controls the yaw motor in the yaw drive device to run s...

Claims

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Application Information

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IPC IPC(8): G06F17/50F03D7/00G06Q50/06
CPCF03D7/00G06F30/17G06Q50/06Y02E10/72
Inventor 蔡彬褚晓广张正强张烨王乃哲王楠楠
Owner QUFU NORMAL UNIV
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