Penetration rate of direct drive motor has broad space of growth.
Generators of wind turbines mainly include double feeding and direct drive motors. Direct drive generator sets are driven by multi-pole NdFeB motors directly linking with impellers, without using traditional gear box. Generators will be more efficient and have smaller polar distance, if they employ rare earth permanent magnet motor technology, therefore, PM direct drive motors become major trend of technical development in the future, with gradually rising penetration rate in wind power sets.
In 2016, new installed capacity of global wind power sets reached 546.42 million kilowatts, among which penetration rate of direct drive motor was 35%. 0.67kg of NdFeB magnets were applied in installed capacity of per kilowatt. According to this calculation, 1275 million tons of neodymium magnets were globally used in wind power sets in 2016. Based on estimation, by 2021, installed capacity of newly increased wind power send will reach 750 million kilowatts; therefore, growth rate of newly increased installed capacity is 6.5% in the world. Suppose that in 2017 and 2018, penetration rate of PM direct drive motor of wind turbines rises by 1%, then 1396.7 million tons and 1528.7 million tons of sintered NdFeB permanent magnets will be used in wind power worldwide, with year-on–year growth rate of 9.54% and 9.46%.
China Rare Earth Magnet Limited manufactures many types of neodymium motor magnets, if you have such demand, welcome to contact us!
Tags: NdFeB magnet, motor magnets, permanent magnets, China magnet, magnet manufacturer
