Long-shaped power bank. The shape of the wind leaf power generator is a long strip, which is very easy to carry and install on an electric bicycle. The wind leaf power generator does not require sunlight. When the blades are unfolded in a windy place, it can generate electricity and store the electricity on its own. It has a lithium battery that can be connected to charge electrical equipment after folding the blades.
How many meters are the blades of a large wind turbine?
The largest wind turbine blade is 80 meters long. The world's largest wind turbine is located in Maade, Denmark. It is called V164 and was manufactured and installed by Mitsubishi Vestas Offshore Wind Company. This wind turbine is 220 meters high and has three giant blades installed on it. Each blade is 80 meters long, which is longer than a Boeing 747.
How many kilowatt-hours of electricity does a wind turbine generate per second?
The length can reach 108 meters, 111 meters, or even 115 meters.
The record for the longest wind turbine blade has been broken many times. This is because the length of wind turbine blades depends on the design power of the entire unit and wind field conditions.
For example, for a 2MW wind turbine, the blade length range is 48 to 59 meters; for a 3MW wind turbine, the blade length range is 44-59 meters; for 5MW and above wind turbines, the blade length range is 62- 75 meters. These data may change with technological advancement and market demand.
For example, Mingyang Intelligent has announced the development of MySE16.0 to 242 offshore models, with a single power of up to 16 megawatts and a blade length expected to be 118 meters. China Shipping also announced the development of a 16-megawatt offshore wind turbine, with blade lengths expected to exceed 125 meters. These all show that wind power blades are rapidly iterating, and the era of "big" blades has arrived.
Among all wind energy generators, the amount of electrical energy generated by each rotation of the wind energy generator varies depending on the power of the wind energy generator.
For example, the most common 2MW direct-drive wind energy generator, when the wind energy is sufficient and stable, can generate 2,000 degrees of electricity every 60 minutes, and each rotation of the fan blades requires 3.5 seconds, 60 minutes, is 3600 seconds, so the electricity generated by the generator per second is 0.56 kilowatt-hours. Then the electricity generated by the fan of the wind energy generator for each rotation is 0.56 × 3.5 seconds, which is 1.94 kilowatt-hours.
Extended information
Generator principle
The principle of wind power generation is to use wind power to drive the windmill blades to rotate, and then through the The speed machine increases the speed of rotation to prompt the generator to generate electricity. According to current wind turbine technology, power generation can start at a breeze speed of about three meters per second (the level of breeze).
Because the wind volume is unstable, the wind turbine outputs alternating current of 13 to 25V, which must be rectified by the charger and then the battery is charged, so that the electric energy generated by the wind turbine becomes variable.into chemical energy. Then use an inverter power supply with a protection circuit to convert the chemical energy in the battery into AC 220V mains power to ensure stable use.