Wind is the work that nature has given us, and the size and direction of the wind are usually two very important factors in meteorological testing. However, due to the high uncertainties of wind energy, wind power and wind speed must be accurately and timely measured in order to control the power generation of wind turbines very well so that they can follow the changes in wind power to obtain the maximum power generated thereby reducing costs. Take control accordingly. Wind speed monitoring can be performed using a wind anemometer. The wind anemometer has three measurement modes, automatic mode, manual mode, and computer lock mode. In addition, the wind direction wind speed monitor also has a powerful data storage function, which can simultaneously save 60000 Group data. The use of wind anemometer can accurately monitor wind direction wind speed, but due to the inaccurate understanding of relevant concepts and methods of wind data and statistics, it may affect the correct use of wind data. This article is to understand the concept of conventional wind speed and its development.
Wind speed has the following three concepts, which are often mentioned in our usual research: 1 Average wind speed: refers to the average wind speed over a specified period of time. Before 2000, the average wind speed was usually the average of 2 min and 10 min (day average, monthly average, annual average). After 2000, with the replacement of detection equipment, the average wind speed was increased by an average of 3s and 1min. 2 Maximum wind speed: Refers to the maximum average wind speed of 10 minutes during a certain period of time. The maximum wind speed is divided into "2min maximum" and "10min maximum" ie "maximum timing" and "maximum self-report". "2min max." is jumped from the regular observation record. "10min max." is the maximum 10min picked from the note paper, and the most commonly used maximum wind speed is "10min max." 3 Maximum wind speed (gust): The maximum instantaneous wind speed that occurs during a certain period of time. Instantaneous wind speed refers to the average wind speed of 3s. Extreme wind speed is the instantaneous maximum wind speed value. There are two observation methods for extreme wind speeds. One is to record the highest point in the trace one day (at 20-20 o'clock) by manually reading the wind-direction wind self-recorder, read the indication, take a decimal, and after the baseline correction and air density correction, pick the day. The maximum wind speed is recorded in books and tables for statistics; the other is for the purpose of compiling aviation reports, weather reports, important weather reports or undertaking other safeguard tasks. When the observer observes that the wind speed is relatively large, visual observation of the wind direction of the Verda or EL type is performed. The maximum wind speed observed by the wind speed indicator is recorded on the air book only for the purpose of preparation and reporting, but no report is recorded and no statistics are made.
In the process of environmental weather monitoring, monitoring of wind direction wind speed is indispensable. In addition, such as temperature, humidity, illuminance, rainfall, etc. are also very important in environmental testing, at this time we usually use the following instruments, such as temperature illuminance recorder, light quantum meter, rainfall recorder, temperature and humidity recorder, etc. These instruments constitute the entire meteorological testing instrument.
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