Method and device of power control of wind turbine generators
A wind turbine and power control technology, which is applied in the control of wind turbines, mechanical equipment, engine control, etc., can solve the problem that the safety and economy of the turbine cannot be taken into account at the same time, and achieve the effect of improving safe operation.
Active Publication Date: 2018-11-23
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a power control method and equipment for a wind turbine to solve the problem that the existing power control method cannot simultaneously take into account the safety and economy of the unit operation
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Embodiment Construction
[0024] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0025] figure 1 is a flowchart illustrating a power control method for a wind turbine according to an embodiment of the present invention.
[0026] In step S10, predict wind resource data within a predetermined time period in the future according to historical wind resource data. Here, the wind resource data may include wind speed, or wind speed and at least one of the following: turbulence intensity, wind shear, wind direction, inflow inclination, wind frequency distribution, and air density.
[0027] The present invention does not limit the specific way of predicting the wind resource data in the future predetermined time period, and various existing wind resource prediction methods can be used to predict the wind resource data in the future predetermined time period. Different sectors need not be considered when predicting wind resource data for a p...
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The invention provides a method and a device of power control of wind turbine generators. The method of the power control comprises the following steps that wind resource data in a future preset timeperiod is predicted according to historical wind resource data; maximum design life of the wind turbine generators allowed to be consumed in the future preset time period is estimated according to residual design life of the wind turbine generators, wherein the design life refers to a running time of the wind turbine generators under a design load; according to the predicted wind resource data andthe estimated maximum design life, the optimal output power of the wind turbine generator of each wind speed section is determined in the future preset time period; and the operation of the wind turbine generators is controlled according to the optimal output power of the wind turbine generator of each determined wind speed section in the future preset time period. According to the method and thedevice, by predicting the wind resource data and the designed service life consumed through the wind turbine generators, the optimal output power of the wind turbine generator of each wind speed section is determined, the power generation can be improved as far as possible while the safe operation of the wind turbine generators is ensured.
Description
technical field [0001] The invention relates to the field of control of wind turbines. More specifically, it relates to a power control method and device for a wind turbine. Background technique [0002] As the energy crisis becomes more and more obvious around the world, the development of renewable energy has become a major measure of the energy development strategies of countries all over the world. Due to its huge global reserves, renewable, wide distribution and non-polluting characteristics, wind power has become a widely researched renewable energy. [0003] When determining the power curve of wind turbines in the design stage, the principle of optimizing the power generation capacity under standard wind parameters is usually followed. During the time running process of wind turbines, the power control is generally carried out according to the power curve determined in the design stage, but the wind parameters of the actual wind farm are quite different from the sta...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F03D7/00
CPCF03D7/00F05B2270/30F05B2270/321F05B2270/32F05B2270/1033F03D7/0292F03D7/043F05B2260/821F05B2270/20F05B2270/404F05B2270/332F03D7/045F05B2270/109
Inventor 余梦婷张鹏飞周桂林王明辉
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD