Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizens West window past, special commentator, Huake high achiever's clue delivery! CTOnews.com October 9 news, according to the "China discipline Daily" learned from Huazhong University of Science and Technology, on September 29, the engineering and technical team of the National pulsed strong Magnetic Field Science Center of Huazhong University of Science and Technology successfully realized the overall magnetization of the rotor of 20MW's largest single power wind turbine in the world, becoming the only technical team in the world that can charge and demagnetize the whole series of megawatt permanent magnet wind turbines. This marks a milestone breakthrough in China's wind power green manufacturing, and is of great significance to promote the high-quality development of China's wind power green manufacturing.

Rotor is the core component of wind turbine, its main function is to convert wind energy into mechanical energy, so as to drive the equipment to generate electricity. Permanent magnet wind generator is the main type of wind power generation, and its rotor magnetic pole is composed of many magnetic steel. The traditional manufacturing process is "magnetizing before assembly", but because the magnets are magnetic and there is a huge repulsive force between them, there are some problems such as difficulty, high danger and low efficiency of assembly.

After more than 10 years of research, Li Liang, a professor at the National pulsed strong Magnetic Field Science Center of Huazhong University of Science and Technology, put forward the method of "non-magnetic assembly-integral magnetization" of large permanent magnet motors for the first time in the world, which solved the defects of traditional technology. in June 2021, the first integral magnetization equipment of China's large permanent magnet motor was developed to complete the overall magnetization of 2.5 MW direct drive permanent magnet wind generator rotor. On this basis, Li Liang's team continued to tackle key problems and finally realized the overall magnetization of the rotor of the world's largest single-machine power wind turbine, which has been applied in enterprises.

According to Li Liang, while realizing rapid magnetization, the technology also has the ability of low energy consumption and rapid demagnetization, and has a broad application prospect in the green remanufacturing of retired permanent magnet wind turbines. In addition, it can also be used in high-speed rail drive motors, electric vehicles, maglev trains, ship drive motors and aerospace high-speed motors.

CTOnews.com noted that according to the data of the National Energy Administration, the total installed capacity of wind power in China will reach 389 million kilowatts by the end of June this year.

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