A method and device for controlling power increase of a wind power generating set

Abstract

The invention discloses a method and device for controlling power increase of a wind turbine generator set. The method comprise the following steps that S1, wind resource data in an environment wherea target wind turbine generator set is located is acquired in real time during the operation process of the target wind turbine generator set; S2, whether the wind resource data acquired in the step S1 meets a preset power increase control condition is judged, if yes, and if the operation state of the current target wind turbine generator set meets the preset state condition, the step S3 is proceeded; and S3, the power output of the current target wind turbine generator set is controlled to be increased and adjusted. The device comprises a data acquisition module, a discrimination module and apower increase execution module. The performance of a large-scale wind turbine generator set can be fully played in a complex wind farm power plant environment, and the device and the method have theadvantages of simplicity in realization, high control efficiency and precision, safety, reliability and the like.

Description

technical field [0001] The invention relates to the technical field of large-scale wind power generators, in particular to a method and device for controlling the power increase of a wind power generator set. Background technique [0002] In the development and design of wind turbines, it is usually from the hardware point of view to customize the units in combination with the wind resource characteristics of each machine position in the wind farm to achieve the optimal equal margin design. However, the structure of the wind turbine and the development environment of the wind farm Complex and diverse, it is actually difficult to achieve the theoretically optimal equal margin design through hardware, and when the wind turbine meets the safety requirements of the site and the unit, such as figure 1 As shown, when there is still a surplus and unnecessary design margin, the power generation performance of the wind turbine cannot be fully utilized, that is, there is hidden waste ...

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Problems solved by technology

[0002] In the development and design of wind turbines, it is usually from the hardware point of view to customize the units in combination with the wind resource characteristics of each machine position in the wind farm to achieve the optimal equal margin design. However, the structure of the wind turbine and the development environment of the wind farm Complex and diverse, it is actually difficult to achieve the theoretically optimal equal margin design through hardware, and when the wind turbine meets the safety requirements of the site and the unit, such as figure 1 As shown, when there is still a surplus and unnecessary design margin, the power generation performance of the wind turbine cannot be fully utilized, that is, there is hidden waste of unit equipment, especially for large wind turbines, which will cause very large equipment waste of resources

[0003] At present, in order to meet the demand for large power generation, the installed capacity of wind turbines is increasing rapidly, but at the same time, it will also increase the cost of electricity. Therefore, improving the technical level of wind power equipment to increase the power generation of units (especially in-service units) can effectively reduce kWh cost

At present, general methods such as closed-loop power generation control and supervisory control are usually used to increase the power generation of wind turbines, but this type of method is effective for increasing power generation, especially when applied to wind farms with complex terrain. For example, when the terrain in the wind farm is complex, and the air density and turbulence intensity of the wind farm are variable, and the annual average wind speed is small, it is difficult to effectively realize the power generation of the wind turbine through the above-mentioned closed-loop power generation control and supervisory control methods. promotion

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