Wind energy roadside street light is a kind of lighting equipment that uses wind energy to generate electricity. It converts the kinetic energy generated by the rotation of the fan into electrical energy to power the lighting of the street lamp. Why do the “fans” on some wind-powered street lights spin while others do not? There are several main reasons:
First of all, the rotation of wind street lights is related to wind speed. The fan of the wind-powered street light is driven by wind energy. Only when the wind speed reaches a certain level can sufficient kinetic energy be generated to rotate the fan. If the wind speed is low, the fan may not spin or spin slowly. Therefore, the fans of some wind street lights may not rotate when the wind speed is low.
Second, the rotation of wind street lights is related to the direction of the wind. The fans on wind street lights are usually aimed in a specific direction to better capture the wind. If the airflow direction does not match the fan direction, the fan may not spin or spin slowly. Therefore, when the wind direction does not match the fan direction, the fans of some wind street lights may not rotate.
In addition, the rotation of wind street lights is also linked to equipment failure. The wind-powered street light is a complex device that contains several components such as fans, generators and batteries. If one of these parts fails, it can cause the fan to stop spinning. Therefore, the inability to rotate the fans of some wind street lights may be caused by equipment failure.
Enfin, the rotation of wind-powered street lights is also linked to energy demand. Wind-powered street lights generally automatically adjust the lighting intensity based on the brightness of the environment. If the environment is already bright enough, wind street lights can stop spinning to save energy. Therefore, the fans of some wind street lights may not rotate because the current environment is bright enough and no additional lighting is needed.
In summary, the fan rotation of a wind street light depends on factors such as wind speed and direction, equipment failure, and power demand. The wind street light fan will only rotate when the wind speed is appropriate, the wind direction is constant, the equipment is operating normally, and additional lighting is needed.
How many kilowattshours of electricity can a large wind power fan generate in a circle?
Motors and generators are actually the same device. Turn it on and it will spin. Electrical energy is converted into mechanical energy. You turn it and it generates electricity, converting mechanical energy into electrical energy. As for the electric fan, I once tried running a miniature ceiling fan without any speed adjustment devices. The voltage at both ends of the plug is actually output, and it is not small.
Whether it is a DC or AC motor, when the rotor rotates, it will induce an electromotive force (or voltage) in its circuit. In a sense, it generates electricity. But the problem is that the electricity it emits (strictly speaking, the electromotive force) is used to compete with the input voltage and is smaller than the voltage.on input, so this “emitted electricity” cannot return to the power grid, so we think that is the case. is Consuming electricity rather than producing it.
A special case is that when the electric fan is rotating, a strong wind blows, the wind direction is consistent with the wind direction of the electric fan, and the speed of the electric fan exceeds its rated speed (properly speaking, it is a synchronous speed). At this time, the electric fan motor becomesIt becomes a generator if there is no other voltage regulation circuit, it can reinject electrical energy into the network.
A large wind fan can generate 0.1 kilowatt hours of electricity per revolution.
A 100 kW wind turbine generates 0.1 kWh of electricity per revolution at rated speed. Usually, 50W to 300W wind turbines are all 12V, and 300W to 800W wind turbines areall 24V. Above 800W, all wind turbines are above 36V.
Wind turbine speed is related to wind speed, size of the wind turbine, number and design of blades and other factors. According to statistics, the speed of wind turbines currently on the market is generally between 10 and 20 rpm, and the speed of large wind turbines is around 15 rpm.
Wind power generation is mainly affected by wind speed and rotational speed of the wind wheel. Generally speaking, when the wind speed is low, the rotation speed of the wind wheel will be slower and the power output will be reduced accordingly. When the wind speed is high, the speed of the wind wheel will also increase and the power will be reduced. generation will also increase accordingly.
Development trends of wind energy
In the future, the developmentWind energy development will be more intelligent, efficient, low-carbon and digital. In terms of technology, the future will strengthen the reliability, safety and stability of wind turbines, improve the efficiency of wind power conversion, and make full use of digital technology and Internet of Things technology to achieve intelligent management and exploitation of wind energy production.
In terms of policies, support and policy guidance for clean energy will be strengthened in the future to improve the market competitiveness and sustainable development of wind energy. In practical applications, wind power generation will be affected by many factors, such as topography, climatic environment, equipment maintenance, etc. Therefore, actual wind power generation may exhibit some fluctuations.