Method for finely adjusting active power of wind turbine generator

A technology of active power and wind turbines, applied in wind power generation, electrical components, circuit devices, etc., can solve problems affecting the service life of the unit, affecting active power scheduling, frequent adjustment of the unit, etc., to ensure healthy operation, improve power quality, Improve the effect of quick response and precise control

CN109412210AActive Publication Date: 2019-03-01CSIC CHONGQING HAIZHUANG WINDPOWER EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-03-01

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Abstract

The invention belongs to the technical field of wind power regulation and control, and specifically relates to a method for finely adjusting the active power of a wind turbine generator. The method has the beneficial effects that the active power is distributed into two links of coarse adjustment and fine adjustment so as to realize fine adjustment of active power, and the influence of the activepower of a wind power plant on residual error control is considered while the active power of the wind power plant is improved to adjust rapid response and control accuracy, a closed ring can be formed by the dispatching of the active power, the adjustment frequency and adjustment amplitude of the active power of the wind turbine generator are reduced effectively, the active power of the wind power plant can be regulated quickly and accurately, the service life of the wind turbine generator is prolonged, healthy operation of the wind turbine generator is guaranteed, and fine dispatching is realized, so that the quality of electric energy after the wind power plant is connected is further improved, and the stability of an electric power system is guaranteed effectively.
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Description

technical field

[0001] The invention belongs to the technical field of wind power regulation, and in particular relates to a fine regulation method for the active power of a wind turbine. Background technique

[0002] As one of the main forms of clean energy utilization, wind power has developed rapidly in recent years. With the gradual increase of the installed capacity of wind turbines, its proportion in the power grid has also gradually expanded. With the increasing proportion of wind power generation in grid power generation, the huge challenge brought by the fluctuation of active power of wind farms to the safe operation of grid cannot be ignored. As far as the development trend is concerned, in order to ensure the reliable and stable operation of wind farms, integrate wind farms into the grid dispatching system, and realize active power control of wind farms, it is the development demand for safe grid-connected operation of large-scale wind farms.

[0003] With the im...

Examples

Embodiment Construction

[0025] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0026] Such as figure 1 As shown, the control system block diagram of a wind turbine active power fine adjustment method provided by the present invention includes the following modules: receiving grid active power dispatching instructions, active power pre-adjustment module, wind farm actual active power, and power distribution module. Receiving the dispatch command of the grid is to obtain the target value of the active power of the wind farm. The actual active power of the wind farm is a summary of the wind turbine operating data of the wind farm monitoring system. The main function of the active power pre-adj...