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Wind generating set control method

A technology of wind turbines and wind turbines, applied in the control of wind turbines, wind turbines, engine control, etc., can solve the problems of reducing the overall efficiency of wind farms, loss of power generation, etc., to avoid energy loss and mechanical load, reduce impeller Kinetic energy, the effect of increasing the safety margin

Active Publication Date: 2016-05-04
XEMC WINDPOWER CO LTD
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Problems solved by technology

This will reduce the overall efficiency of the wind farm, loss of power generation

Method used

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  • Wind generating set control method

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0015] With reference to accompanying drawing, a kind of control method of wind power generating set, it comprises the following steps:

[0016] Step 1. Obtain the estimated wind condition characteristic value and the initial value of the wind turbine operating state through the local or remote communication system. The wind condition characteristic value includes at least the estimated wind speed at each time point in the geographical location of the wind turbine and the initial value of the wind turbine operating state. Including at least the initial state impeller speed Rotspd int , the blade pitch angle Ptang in the initial state int , Fan output power Pwrout in the initial state int ;

[0017] Step 2. Calculate the operating state value of the wind turbine at each time point according to the estimated wind condition characteristic valu...

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Abstract

The invention relates to a wind generating set control method. The wind generating set control method comprises the following steps: step 1, acquiring an estimated wind regime characteristic value and a wind generator running state initial value via a local or remote communication system; step 2, according to the estimated wind regime characteristic value, the wind generator running state initial value and a wind generating set control parameter, calculating a running state value of a wind generating set at each time point; step 3, comparing the running state values, obtained in step 2, of the wind generating set with a designed safety threshold value of the wind generating set; step 4, adopting an absorption power coefficient reduction and power output improvement method to obtain a corrected wind generating set control parameter; and step 5, using the wind generating set control parameter meeting the designed safety threshold value as a final execution parameter of a wind generator control system. With the adoption of the wind generating set control method, the response speed of the wind generating set is increased, and energy loss and mechanical load brought by shutdown are avoided.

Description

technical field [0001] The invention belongs to the field of wind power generation, and in particular relates to a control method for a wind power generating set. Background technique [0002] The existing wind turbines mainly deal with gust wind conditions in two ways: the wind turbine itself processing and the wind farm forecast processing. [0003] The self-processing of the wind turbine is mainly through the wind direction and wind speed sensors set by itself to realize real-time control of its own operating status. This method has shortcomings. First, when the wind turbine's own sensor detects abnormal wind conditions, the wind has already reached the wind turbine. Due to the huge inertia of the structure and control of the wind turbine, its emergency response often has a large delay. In this case, the action will not be timely, and the system will reach or even exceed the limit condition, resulting in system protection and shutdown. This brings great potential safety...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/00
CPCF03D7/00F05B2270/335Y02E10/72
Inventor 黄凌翔宋晓萍熊弦
Owner XEMC WINDPOWER CO LTD
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