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This 1.2mw direct drive variable speed constant frequency permanent magnet wind turbine was successfully developed by Harbin Electric Industry Co., Ltd. for 8 years. The design of the generator is based on the experience of manufacturing small and medium hydroelectric generators and AC and DC motors. It absorbs domestic and foreign wind power technology and has its uniqueness. It features a gearless box. Compared with the gearbox structure adopted at home and abroad, it simplifies the structure, reduces noise and improves reliability. The product can change the speed of the wind wheel according to the wind speed, while maintaining the Internet frequency and improving the wind energy. Utilization; can also adjust the generator active power, reactive power and power factor, which is conducive to grid stability; cancel the compensation capacitor, not only does not absorb the grid reactive, but also can send reactive power to the grid; smooth grid connection, grid connection The current is not more than 20% of the rated current, and is controlled by the DCS system. The PLC is controlled by a single machine and is easy to use and maintain.
The generator voltage is 690V, the speed is 14~15 rpm, the wind wheel diameter is 57 meters, the number of blades is 3, and the blade length is 27.55 meters. The large single capacity of this product is also the first in the history of China's independent knowledge wind power development.
As a clean renewable energy, wind energy will gradually lower its operating costs than hydropower and thermal power as the technology matures. The development prospects are very broad. The generator will be installed in the wind farm in Muling County, Heilongjiang Province. After mass production, the annual production capacity can reach more than 200 units. With the launch and use of this type of unit, it marks that China's wind power generation group will independently innovate and manufacture technology with complete independent intellectual property rights. To a certain extent, it will get rid of large wind turbines relying on imports, relying on imported technology, and following foreign product technology. Development model.
China's first 1.2 MW wind turbine was successfully developed
China's first 1.2mw (megawatt) permanent magnet direct-drive wind turbine with independent intellectual property rights was formally developed into a parallel train at Harbin Electric Industry Co., Ltd. The generator will be installed in the wind farm in Muling County, Heilongjiang Province.