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Wind power generation is a new energy utilization method that converts the kinetic energy of wind into electrical energy. ‌

Working principle‌:

The working principle of wind power generation is to use wind power to drive the windmill blades to rotate. The wind wheel rotates under the action of wind power, converting the kinetic energy of wind into mechanical energy of the wind wheel shaft, and then increasing the speed of rotation through the speed increaser, which finally prompts the generator to generate electricity and output AC power.

Common problems of wind power generation mainly include the following aspects:

• Unstable wind speed: The instability of wind speed is one of the main factors affecting the efficiency of wind power generation. Due to changes in meteorological conditions, the wind speed will increase and decrease from time to time, resulting in unstable wind wheel speed, which in turn affects the fluctuation of generator output power.
• Noise pollution: Wind turbines will generate large noise during operation, mainly due to air vibration and mechanical friction generated when the turbine rotates. This has a certain impact on the surrounding environment and people's health.
• Bird collision: When large wind power generation equipment is set up on a suitable bird migration route, birds are prone to collision with turbine blades, posing a threat to the survival of birds.
• High maintenance cost: The maintenance and overhaul of wind power generation equipment requires a lot of manpower, material and financial resources, which increases the operating cost.
• Mechanical component failure: including blade failure, gearbox failure and bearing failure. Blades are exposed to harsh environments for a long time and are susceptible to wind erosion, lightning strikes, etc.; gearboxes are prone to wear due to high-load operation; bearings are easily damaged due to overload and fatigue.
• Electrical system failure: generator failure, excitation system failure and converter failure. Long-term operation of the generator will cause winding overheating and insulation aging; excitation system failure will affect the output voltage and power factor of the generator; converters are easily damaged in high voltage and high current environments.
• Environmental factors: Extreme weather such as strong winds, lightning strikes, salt spray and dust will damage wind turbine components; icing will also increase the load and affect power generation efficiency.
• Operation and maintenance issues: Insufficient daily maintenance, poor spare parts management and improper operation will lead to increased equipment wear and shortened service life.
• ‌Wake effect‌: When multiple wind turbines are arranged side by side, the wind turbine in front will produce a low wind speed area in the wake, affecting the power generation efficiency of the wind turbine behind.
• ‌Wind turbine vortex-induced vibration‌: The vortex-induced vibration generated by the blades when rotating will affect the stability of the structure and increase noise.
• ‌Wind shear index‌: The wind shear index describes the change of wind speed with height. Severe wind shear will have an important impact on the design of wind turbines.

The application of infrared thermal imaging technology in wind power generation has many significant benefits, mainly including improved detection efficiency, real-time monitoring, preventive maintenance, safety improvement and economic improvement.

First, infrared thermal imaging technology has the advantage of non-contact detection. It does not need to directly contact the surface of the wind power generation equipment. It obtains the temperature distribution by measuring the infrared radiation on the surface of the equipment, thereby avoiding the need to shut down or dismantle the equipment, reducing interference and downtime during the detection process, and improving the efficiency and convenience of detection.

Second, infrared thermal imaging technology can achieve real-time monitoring. It can monitor the temperature distribution of wind power generation equipment in real time and display it in the form of color images, helping operators to intuitively observe the temperature difference on the surface of the equipment, timely detect abnormal conditions and take corresponding measures to avoid failures and damage caused by overheating or uneven heating of the equipment. In addition, infrared thermal imaging technology helps preventive maintenance. Through regular thermal imaging detection, the health status of the equipment can be evaluated, potential problems such as cracks, wear, overheating, etc. can be found, so that repair or replacement measures can be taken in time to extend the service life of the equipment and improve reliability and safety. In terms of safety, infrared thermal imaging technology reduces the risk of personnel contacting the equipment. Since there is no need to directly contact the equipment, accidental injuries caused by high-speed rotating blades or complex operating environments are avoided. At the same time, no electromagnetic radiation or pollution will be generated during the detection process, which is harmless to the environment and human health.

Finally, infrared thermal imaging technology also has economic advantages. Although the initial investment may be high, preventive maintenance reduces the risk of serious failures and repair costs, improving the economy of wind power generation systems.

Benefits brought

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  infrared thermal imaging technology can achieve real-time monitoring

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  infrared thermal imaging technology has the advantage of non-contact detection

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  infrared thermal imaging technology has economic advantages