Method and device for judging unnecessary windward condition, and method and system for tracking wind

Abstract

The present invention relates to a method and apparatus for judging an unnecessary windward condition and a method and system for tracking wind, wherein the method comprises: Step 1: taking a first wind sample by using a wind sampling-detecting unit, detecting a wind direction of the first wind sample, and obtaining a first wind direction; Step 2: judging whether an intersection angle between the first wind direction and a current wind turbine orientation obtained by a wind turbine orientation device is smaller than a critical angle of rotation by using a control unit; Step 3: if the judging result of Step 2 is "yes", carrying out Step 3-1; if the judging result of Step 2 is "no", carrying out Step 3-2; Step 3-1: determining the windward condition is unnecessary windward condition; Step 3-2: detecting a wind speed of the first wind sample, judging whether the wind speed of the first wind sample is lower than a first critical wind speed; if the answer is "yes", determining the windward condition is unnecessary windward condition; if the answer is "no", determining the windward condition is not unnecessary windward condition, then rotating the cabin of the wind power generating set, thereby achieving accurate windward according to a wind condition, a cabin position, and so on. With the technical solutions of the present invention, whether the change of the wind direction is an unnecessary windward condition can be judged and under the wind direction is an unnecessary windward condition, the system can enable the cabin to be windward under an optimum wind condition and capture maximum wind energy.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a method and device for judging unnecessary windward conditions, and a method and system for tracking wind. Background technique [0002] At present, it has become the consensus of all countries in the world to vigorously develop clean energy and strive to build a low-carbon society. As a renewable, non-polluting, high-energy energy source, wind power has a bright future. [0003] Wind turbines are technical equipment for wind power generation. figure 1 Structural diagram of the wind turbine. Such as figure 1 As shown, the wind turbine includes a nacelle 101, blades 102, columns 105 and base 106, wherein there are multiple blades, which can increase the area in contact with the wind and improve power generation efficiency; the generator is located inside the nacelle 101; the columns 105 and The base 106 supports the nacelle 101; there is a yaw bearing 104 at the position ...

AI Technical Summary

Problems solved by technology

In this way, if there is an unnecessary windward situation, that is, the change of the wind direction is very small, or the wind speed is very small after the wind direction changes, then the wind tracking device still needs to control the rotation of the nacelle. Turning the engine room wastes electricity, which is not worth the loss

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