According to stall the propeller-type moment fans and variable speed constant frequency pitch moment characteristics of the fan, the domestic current installed capacity of the motor are generally divided into two categories:
1, asynchronous

(1) cage asynchronous generator; power 600/125kW 750kW 800kW 12500kW
The stator to the wind power generators grid with different power 50Hz AC;
(2) winding double-fed induction generator; power 1500kW
50Hz AC wind generators transmission to the stator, rotor control by the inverter to the grid or indirect active transport reactive power.
2, synchronous

(1) permanent magnet synchronous generator; power of 750kW 1200kW 1500kW magnetic field generated by the permanent magnet, the stator output by the full power rectifier inverter to the power grid after the 50Hz AC
(2) electrical excited synchronous generator; received from the external rotor DC current creates a magnetic field on the stator by the full power rectifier inverter output to the power grid after the 50Hz AC
According to the different leaf forms, the existing wind turbines are divided into the following categories:
3, the horizontal axis

Currently the world’s most widely used form of 5MW power around the maximum.
4, vertical axis

The early 21st century from China, Japan, Europe almost simultaneously invented a new type of wind turbine is different from the first vertical axis wind turbine (Darieu type), more efficient than horizontal axis wind generators, no noise and steering institutions, and simple maintenance. U.S. and European markets have become the preferred medium and small wind turbines. The world’s biggest power mode by the Shanghai Electronic Equipment Co., Ltd. Sri Lanka (MUCE) production of 50 kW vertical wind turbines, Japan’s largest power of 30 kilowatts, the power in the Anglo-American countries produce 1 kilowatt to 10 kilowatt.

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