How to measure the power output of a wind turbine at different wind speeds

Introduction How to measure the power output of a wind turbine at different wind speeds? You can consider this method: Connect a purely resistive fixed load with sufficient power to the generator and place it near the wind turbine.

How to measure the power output of a wind turbine at different wind speeds

You can consider this method:

Connect the generator to a purely resistive fixed load with sufficient power and install a wind speed sensor near the wind turbine (the unit price is about 400 yuan). Use a computer to synchronously measure the generator output voltage and wind speed at intervals (e.g. 5 minutes) and record the data. Then, the two obtained data sets are calculated and analyzed to obtain the generator output power at different wind speeds.

The key here is that you need a multimeter with RS232 output (or other interface), and the voltage signal (or pulse signal) output from the wind speed sensor must be converted before it can enter the computer. .

What is the relationship between wind energy or wind speed and wind energy production? What affects wind energy?

Mechanical anemometers are generally called cup anemometers. There are hemispherical cups and conical cups. For low wind speeds, hemispherical anemometers are better. For high wind speeds, cone anemometers are better. Both have a vertical axis relative to the horizontal plane, and there are also those that have a horizontal axis, such as small wind-powered tankers. There are not many users of wind energy, and it is suitable for situations where the environment is relatively harsh, such as corrosion, low temperature, etc. The accuracy is generally around 0.5 m/s. If the starting torque is large and the wind is too weak to measure it, the measuring range is generally 3-50-70 m/s. It can only measure wind speed in one direction, usually the horizontal direction. Test data has a lot to do with qualityity of the installation. If the installation is not level, the master data will be completely useless and can of course be corrected.

The ultrasonic anemometer, with an accuracy of 0.1 m/s, poses no problem. It is estimated that it can be used between 0 and 100 m/s, and 3 dimensions can be measured simultaneously. Sampling speed is also not a problem. The price is not cheap and can be used for a long time.

Today, half of the wind turbine cabin is equipped with an ultrasonic hemispherical cup and a wind direction indicator.

There are also laser and ultrasonic devices for on-site measurement. The laser anemometer can be placed directly on the ground to measure data at an altitude of 0-200m at a time, and there is no problem with the three-dimensional flow field. The valuable equipment was removed immediately after halfway through the tests. Nobody dareduse it in nature. . .

Wind power relies on wind turbines (also called wind turbines) to capture wind energy. The formula for wind energy is:

P=0.37x10 - 4AV3

<. p>P represents power, the unit is kilowatt [KW]

A represents the cross section of the windmill blade, the unit is meter [m]

< p>V represents the average wind speed, the unit is meters per second [m] /s]

The formula shows that to obtain greater wind power, one more wind turbine must be used large size to align the wind direction and receive wind with higher average wind speed.

Wind direction and speed are important indicators of wind energy. Generally speaking, wind direction refers to the total average [main direction] of all directions over a ten-minute period, which is marked by sixteen directions [such ase south-southeast, northwest-west]. [duration/time], it can also be described by the scene of the wind blowing in nature. This description is called the Beaufort wind scale.cale].

At present, weather observation stations observe the wind speed eight times a day, and each time the average wind speed within 10 minutes represents the wind speed within three hours, if you want to use wind power, you have to; make more detailed observations; and record them over a long period of time. Understand maximum wind speeds and the conditions under which turbulence occurs. If within 10 minutes there is an instantaneous wind speed greater than this average value of 5 meters/second, we speak of a gust.

For general small wind power generation devices, the required wind start speed is 3 meters/second and the nom speedwind speed is 20 meters/second. It will stop in case of strong winds of 56 meters/second. actually producing electricity, the surface of the wind turbine blades. Each square meter can only generate about 124 W (average wind speed 10 meters/second).

  • Popular Focus
  • Where is the cheapest battery wholesale?

    Where is the cheapest battery wholesale in Tangxia, Sanyuanli, Baiyun District? There is an enterprise specializing in the independent production of electric vehicles in Tangxia, Sanyuanli, Baiyun District, Baiyun Sanyuanli Avenue, Baiyun Sanyuanli Street
    08-02
  • Four 3.7V lithium batteries in series and parallel produce 7.4V/4.4A. How to reduce it to 4.8V/4.4A?

    Four 3.7V lithium batteries in series and parallel produce 7.4V/4.4A. I personally think it is impossible to reduce it to 4.8V/4.4A. Because the discharge platform of lithium batteries is generally set
    08-10
  • What are the materials of the negative electrodes of lithium batteries?

    What are the materials of the negative electrodes of lithium batteries? The main commercial applications of lithium batteries include graphite, which is a sheet of copper used to guide current and which does not react. another safe
    08-02
  • The difference between 18500 and 26500 batteries

    What is the difference between 18500 and 26500 batteries? The answer above is 18650. The person asking the question should ask what is the difference between 18505 and 26500 batteries. In the case of Fuant ER1
    08-02
  • What does 3.7V 80mAh written on a lithium battery mean?

    What does 3.7V 80mAh written on a lithium battery mean? 3.7 V, 80 mA = 0.08 A, H means 1 hour, or 3600 seconds. Taken together, it is
    08-02
  • How long does a lithium battery (cell phone battery) last?

    How long does a lithium battery (cell phone battery) last? The lifespan of mobile phone batteries, under normal conditions of use and without serious impact, the lifespan set by the manufacturer must be 5 years.
    08-02
  • Will lithium batteries explode when charging?

    Will lithium batteries explode when charged? Will lithium batteries explode when charged? Lithium battery explosions usually occur during the charging process, because the negative electrode material of lithium batteries is graphite or other carbon materi
    08-02
  • Parameters of lgdas31865 lithium battery

    Parameters of lgdas31865 lithium battery The parameters of lgdas31865 lithium battery are as follows: LGDAS31865 is a model 18650 lithium battery with a capacity of
    08-02
  • What are the main components of lithium battery electrolyte?

    What are the main components of lithium battery electrolyte? The composition of lithium battery electrolyte is shown below. 1. Ethylene carbonate: molecular formula C3H4O3. Colorless transparent liquid (>35℃), room temperature
    08-02
  • Who are the lithium battery manufacturers in Shandong?

    What are the lithium battery manufacturers in Shandong? Shandong Shengyang Power Supply Co., Ltd. and Shandong Weineng Environmental Protection Power Technology Co., Ltd. 1. Shandong Shengyang Power Supply Co., Ltd. is located in Shengyang, Qufu City.
    08-02
  • Types of drone batteries available in 2024

    Part 1. Types of drone batteries available in 2024In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in
    07-30
  • How long does it take to charge 26650 battery?

    How long does it take to charge a 26650 battery? The charging time for a 26650 battery is generally between 3 and 6 hours, but the precise time depends on the power of the charger and the capacity of the battery. in general
    08-02
  • For what?Sure, here's an article based on the phrase "For what?

    The simple yet profound question, "For what?" often serves as a gateway to deeper reflections on purpose and intention. It is a query that invites us to delve into the reasons behind actions, decisions, and circumstances that shape our lives and the wor
    08-02
  • Choosing the Right Cart Battery

    This comprehensive guide will walk you through everything you need about cart batteries, from understanding different types to making an informed purchase decision.
    08-02
  • 30mAh~500mAh 3.7 V Li-ion Battery

    Welcome to Ufine's collection of 3.7V lithium-ion batteries ranging from 30mAh to 500mAh. Explore a diverse range of compact and lightweight batteries suitable for various electronic devices,
    08-02
  • Here are 10 essential facts about drone batteries for 2024.

    10 Key Facts About Drone Battery for 2024 In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in the consumer, commercial, and industrial sectors. Below are the primary types of drone batteries avai
    08-02
  • Could you please explain the difference among IMR, ICR, INR, and IFR 18650 batteries?

    What is the Difference Between IMR, ICR, INR, and IFR 18650 Battery?In 18650 batteries, discerning the differences among IMR, ICR, INR, and IFR types is fundamental for tailored and efficient battery usage. These distinct
    08-02
  • Safety considerations for cart batteries

    Selecting the ideal cart battery is crucial for ensuring optimal performance and longevity of your electric vehicle or vaping device. This comprehensive guide w
    08-01