What are the reasons for the deviation during the working of the anemometer?
Anemometer is also called anemometer. To put it simply, it is a portable and intelligent low-wind measurement instrument with the basic function of measuring wind speed. It is widely used in agriculture, refrigeration, drying, labor hygiene investigation, clean workshop, chemical fiber textile, various wind speed experiments, etc. Anemometer and wind vane, the following factors are summarized by Lantai Instrument.
1. The measured wind speed is lower than the actual value: In windy weather, it is easy to put the unit in a dangerous working condition, especially when the cut-out wind speed cannot be judged in time; when the wind speed is low, the wind speed reaches the cut-in wind speed, but due to the freezing of the anemometer The measured value is low, and the unit does not take the initiative to cut in for a long time, resulting in loss of power generation.
2. Wind direction measurement deviation: On the one hand, it affects the power generation output, and at the same time, it will bring additional unit load due to the excessive wind angle, especially in strong wind conditions, the impact is even greater.
3. Simultaneous occurrence with blade icing: When the blades are icy, the output performance of the unit decreases and it bears abnormal loads at the same time. Many blade icing detection algorithms rely on wind speed and output for judgment. If the anemometer freezes at this time and the measured wind speed value is too small, it will interfere with the icing detection algorithm. The icing wind speed becomes smaller. If you only look at the data, it will be reasonable, because the relationship between wind speed and power may just be within a reasonable range.
4. If the anemometer freezes and cannot work, it will usually cause the unit to stop and cannot operate. Compared with the above, this is a better result because there are no unpredictable potential problems.
Application of Anemometer in Meteorological Field
In the field of meteorology, it is usually necessary to observe many kinds of natural phenomena, such as changes in wind speed and weather, and of course changes in wind direction. For the measurement of wind direction, wind direction instruments or wind direction sensor equipment are basically used to solve this problem.
Measurement of surface wind direction changes: In the sand control work in desert and plateau areas, people usually need to pay attention to the change of air flow speed and wind direction, so that more meteorological data can be obtained, and a more complete control plan can be formulated, so in Meteorological equipment such as wind direction sensors are used throughout the process.
Marine storm early warning: It can be said that the marine meteorological early warning system is one of the important applications of wind direction sensors in the meteorological field. The wind direction change data it provides for the marine meteorological early warning system is one of the important parameters for predicting typhoon coverage and "operation" trajectory.
