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Icing test system and method for wind turbine wing panel

A test system, wind turbine technology, applied in machine/structural component testing, aerodynamic tests, measuring devices, etc., can solve the lack of wind turbine icing physical experiment methods, can not be verified, and it is difficult to accurately obtain anti-icing heat load requirements etc.

Inactive Publication Date: 2019-04-30
LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wind turbine icing includes air flow, water droplet motion, heat and mass transfer and other gas-liquid coupled complex physical processes. It is difficult to accurately obtain the anti-icing thermal load requirements by numerical simulation. could not be verified

Method used

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  • Icing test system and method for wind turbine wing panel
  • Icing test system and method for wind turbine wing panel
  • Icing test system and method for wind turbine wing panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A wind power wing segment icing test system, including a wind tunnel for dynamic tests, an air supply system that can adjust the wind speed of the wind tunnel test, and an icing control system for controlling the internal temperature and humidity of the wind; the icing The control system is connected with a refrigerating device and an atomizing spraying device, the refrigerating device is used for cooling the airflow of the air supply system, and the atomizing spraying device is used for mixing mist water droplets into the airflow of the air supply system; A support mechanism for fixing the wind turbine is arranged in the wind tunnel, and a laser three-dimensional scanner for scanning the blades of the wind turbine and generating a three-dimensional image is also arranged in the wind tunnel.

[0026] In this embodiment, the wind turbine is installed on the support mechanism so that the windward side of the blades of the wind turbine faces the direction of the incoming fl...

Embodiment 2

[0031] The maximum wind speed of the icing wind tunnel in this embodiment is 210m / s, the maximum Reynolds number is 1.4E+7; the range of liquid water content (LWC) is 0.2g / m 3 ~3g / m 3 , The mean droplet diameter (MVD) ranges from 10 μm to 300 μm.

[0032] The airfoil of the wind turbine to be tested is the special airfoil of the Goldwind HQ63-17 wind turbine (such as figure 2 As shown), this airfoil is applied to a certain type of wind turbine. The diameter of the wind turbine rotor is 100m, and the height of the hub is 85m from the ground. In this example, the test wind speed is 23.2m / s, the angle of attack of the wind turbine is 5.26°, the controlled refrigeration temperature is -15°C, and the liquid water content is 0.9g / m 3 , the average droplet diameter is 20μm, and the freezing time is 600s;

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Abstract

The invention relates to the technical field of wind turbine testing, and discloses an icing test system and method for a wind turbine wing panel. The icing test system for the wind turbine wing panelcomprises a wind tunnel, an air supply system and an icing control system, wherein the icing control system is connected with a refrigeration device and an atomization spraying device, the refrigeration device is used for refrigerating the air flow of the air supply system, and the atomization spraying device is used for mixing mist droplets into the air flow of the air supply system; the wind tunnel is internally provided with a supporting mechanism used for fixing a wind turbine, and the wind tunnel is further internally provided with a laser three-dimensional scanner used for scanning blades of the wind turbine and generating a three-dimensional image. The icing test system carries out simulation control on the wind speed, the liquid water content, the droplet median volume diameter, the temperature and the icing time through the air supply system and the control system, and carries out three-dimensional scanning on the wind turbine wing panel through the laser three-dimensional scanner, thereby being capable of directly obtaining the icing shape of the wind turbine wing panel under a given environmental condition.

Description

technical field [0001] The invention relates to the technical field of wind turbine testing, in particular to a wind turbine wing section icing test system and method. Background technique [0002] Regions with cold climates are rich in wind energy resources. On the one hand, cold areas located at high altitudes or high latitudes usually have higher wind speeds; on the other hand, the increase in air density under low temperature conditions will also increase the power generated by wind turbines. However, a series of problems caused by extreme low temperature and icing of wind turbines in cold climates have become the core bottlenecks that limit the utilization of wind energy in cold climates. [0003] In cold climate conditions, the icing of wind turbine blades will lead to a series of problems such as the decline of aerodynamic performance of the blades, uneven mass distribution, additional vibration of the wind wheel, and failure of control strategies, which seriously af...

Claims

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Application Information

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IPC IPC(8): G01M9/02G01M9/06
Inventor 肖京平陈立李国强王强金华史雨王桥赵献礼刘森云马军林
Owner LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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