The permanent magnet direct drive wind turbine uses the permanent magnet excitation and has a wide range of speed regulation, high efficiency; no gearbox, no high-speed mechanical brake, no generator slip ring, carbon brush, high reliability, low maintenance cost; no low-voltage crossing limit, high-quality power output, excellent grid connection capacity.

1）磁鋼利用率高；

1) high utilization rate of magnetic steel;

2）磁鋼的耐腐蝕能力強；

2) the corrosion resistance of magnetic steel is strong;

3）可靠的發(fā)電機絕緣技術；

3) reliable generator insulation technology;

4）可靠的發(fā)電機單軸承應用技術；

4) reliable single bearing application technology of generator;

5）特殊的高強度減重型殼型轉子結構；

5) special high-strength shell type rotor structure with weight reduction;

6）發(fā)電機低振動和低噪聲；

6) low vibration and noise of generator