A control method and device for a yaw system of a wind power generating set
A technology of wind turbine and yaw system, which is applied in the control of wind turbines, wind turbines, and wind power generation. The effect of the number of navigation starts
Active Publication Date: 2020-09-11
XUCHANG XUJI WIND POWER TECH +1
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to provide a control method and device for the yaw system of a wind power generating set, which is used to solve the problems of large vibration in the nacelle and reduced service life of the yaw drive system caused by the frequent yaw of the unit
Method used
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
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0029] Embodiment of the control method of the yaw system of the wind power generating set:
[0030] This embodiment provides a control method for the yaw system of a wind power generation unit, which can adjust the yaw of the unit according to the actual wind conditions of the wind field, effectively reduce the number of yaws of the unit in a wind field with complex terrain, and protect against extreme gusts The unit under working conditions is protected by shutdown, which reduces the load of the unit. The corresponding control logic diagram of the control method is as follows: figure 1 shown, including the following steps:
[0031] (1) Obtain the current wind speed and wind direction data in real time, and calculate the windward deviat...
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 PUM
Login to View More Abstract
The invention relates to a control method and device for a yaw system of a wind generating set. The control method comprises the following steps: obtaining current wind speed and wind direction data in real time to calculate counter-wind deviation of a cabin; if counter-wind deviation of the cabin is greater than a first counter-wind deviation limit value, starting counter-wind yaw; within a set time threshold value after counter-wind yaw starts, judging whether current counter-wind deviation is greater than a second counter-wind deviation limit value or not in real time, and judging whether the second counter-wind deviation limit value is greater than the first counter-wind deviation limit value or not in real time; if counter-wind deviation is not greater than the second counter-wind deviation limit value all the time within the set time threshold value after counter-wind yaw starts, starting counter-wind yaw again if the set time threshold value after counter-wind yaw starts reaches, and counter-wind deviation of the cabin is still greater than the first counter-wind deviation limit value. The control method reduces yaw start times, and effectively avoids the problems that cabinvibrations are great as a unit frequently yaws, and the service life of a yaw drive system is reduced.
Description
technical field [0001] The invention relates to a control method and device for a yaw system of a wind power generating set, belonging to the technical field of wind power generation. Background technique [0002] The yaw control system is a system that operates according to the wind direction deviation. When the actual position of the wind turbine deviates from the incoming wind, in order to maximize the energy in the incoming wind, it is necessary to ensure that the wind turbine is always in the windward position. However, with the development of the wind power industry, high-quality wind resources with flat terrain and high annual average wind speed have been greatly reduced, and more and more wind farms are built in mountainous areas with complex terrain, large turbulence, and fast-changing wind direction. Since the wind rotor of the wind turbine needs to keep facing the wind to obtain more wind energy, the existing yaw control method usually needs to start the yaw if th...
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 Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/02
CPCF03D7/0204Y02E10/72
Inventor 谢金娟程林志王朝东杨海锋耿丽红王建伟武愈振李松博石磊
Owner XUCHANG XUJI WIND POWER TECH