Design life of the wind turbine
is generally two years. At present, both small wind turbine and a
megawatt-class wind turbines are mostly optional permanent magnet NdFeB
magnets, therefore, requires wind turbine magnet has good temperature
stability, corrosion resistance, and high uniformity reliability.
The recent explosion of the
wind turbine market across the globe has forced manufacturers into reducing
manufacturing costs, improving efficiencies, and creating robust designs that
do not require constant service. Using a properly designed permanent
magnet within the wind turbine generator will improve efficiencies in the
conversion of wind power to electrical power immensely over induction, or wire
wound, generators. Also, selecting the correct magnetic material and
manufacturing it to the proper specifications will ensure that it can be
resistant to demagnetization due to high temperatures.
The next generation of wind
turbines are currently being researched which use permanent magnet generators
and axial flux couplings, which use permanent magnets as a coupling. The
overall purpose of this design is to increase efficiency by reducing friction.
Magnetic couplings are currently used in many applications, but this is a
new one that is being explored and has great possibilities. UMAG Magnet
electronic provide wind turbine magnet - high quality neodymium
magnets used in large scale in commercial wind turbines to ensure high
energy-efficiency and good reliability for the whole generator systems.
For Low and medium speed generator, block 38H, 40H and 44H are
the most popular magnets used in MW PM wind turbines, but 38SH, 40SH 38UH and
38EH are also used in wind turbine applications.