Wind turbine control method and device
A technology of wind power generating set and control method, which is applied in the direction of wind power engine control, wind power power generation, wind power generation, etc., and can solve the problem of negative value, loss of wind farm power generation, and generator output power not enough to support high-power electricity consumption Equipment and other problems to achieve the effect of reducing self-consumption
Active Publication Date: 2020-07-28
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] The self-consumption phenomenon of wind farms mainly refers to the phenomenon of self-consumption of wind turbines that occurs during the process of wind farms being connected to the grid. Even in small wind conditions, the active power on the grid side will change from positive to negative. The main reason for this situation is that the output power of the generator during the operation of the wind turbine is not enough to support the self-consumption of high-power electrical equipment (such as yaw system, cooling system, converter, etc.), At this time, the grid needs to provide additional electric energy, which will bring additional loss of power generation to the operation of the wind farm.
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
[0031] Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like numerals refer to like parts throughout. The embodiments are described below in order to explain the present invention by referring to the figures.
[0032] figure 1 A flowchart showing a control method of a wind power generating set according to an exemplary embodiment of the present invention.
[0033] refer to figure 1 , in step S10, it is determined whether the grid-side active power value of the wind generating set is a negative value. As an example, under the condition that the wind power generating set is running normally, it may be monitored whether the acquired current grid-side active power value of the wind power generating set is a negative value.
[0034] When it is determined in step S10 that the grid-side active power value of the wind generating set is negative, step S20 is executed to determine whe...
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 provides a control method and equipment for a wind generating set. The control method comprises the following steps: determining whether a power grid side active power value of the windgenerating set is a negative value or not; while determining that the power grid side active power value is the negative value, determining whether the wind generating set is in a grid-connected powergeneration state or not; while determining that the wind generating set is in the grid-connected power generation state, starting to count time length while the power grid side active power value iscontinuously the negative value; and while the counted time length exceeds a first preset threshold value, controlling the wind generating set to enter a standby state from the grid-connected power generation state. According to the control method and equipment provided by the invention, effective treatment can be performed on a condition that the power grid side active power value is the negativevalue in the grid-connected power generation process of the wind generating set, so that consumable loss of the wind generating set is reduced.
Description
technical field [0001] The present invention generally relates to the technical field of wind power generation, and more specifically, relates to a control method and equipment for a wind power generating set. Background technique [0002] The self-consumption phenomenon of wind farms mainly refers to the phenomenon of self-consumption of wind turbines that occurs during the process of wind farms being connected to the grid. Even in small wind conditions, the active power on the grid side will change from positive to negative. The main reason for this situation is that the output power of the generator during the operation of the wind turbine is not enough to support the self-consumption of high-power electrical equipment (such as yaw system, cooling system, converter, etc.), At this time, the grid needs to provide additional electric energy, which will bring additional loss of power generation to the operation of the wind farm. [0003] Therefore, it is necessary to take c...
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): F03D7/00
CPCF03D7/00Y02E10/72
Inventor 韩梅欧发顺
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD