The first permanent-magnet direct-drive power generation unit that uses the ocean current to generate electricity has recently been launched in Qingdao Haiszhuang Tower Co., Ltd. in Jiaozhou, Qingdao.
According to the introduction of Mr. Wang, an assistant to the general manager of Qingdao Haishuang Co., Ltd., the use of tidal power is not new. Since the 1980s, China has successively built a number of small and medium-sized tidal power stations in coastal areas, such as the Jiangxia Chaoshan Power Station in Zhejiang Province. .
Ocean currents (also known as ocean currents) are water masses in the ocean that have different density due to thermal radiation, evaporation, precipitation, cold shrinkage, etc., and they have relatively stable flow rates due to wind stress, geostrophic bias, and tidal force. . According to Wang’s introduction, China has abundant ocean energy resources, of which the trend energy resources are very intensive, and the Chinese offshore current can be one of the regions with the highest power density in the world. The development and production of a new generation of highly efficient and reliable tidal current generators will play a significant role in the implementation of renewable energy development strategies in China.
According to reports, starting from 2010, Qingdao Haas Strong Tower Co., Ltd. has jointly developed marine current permanent magnet direct-drive power generation equipment with China Ocean University and HIT Weihai Campus. The project draws on the mature experience of Europe and absorbs the latest technology to achieve the local production of advanced power generation device components and complete machines. The current power generation system has a system energy conversion efficiency of more than 30%. Due to the adoption of the permanent magnet direct drive technology of the world's major mainstream wind turbines, the energy consumption is small, and the power generation efficiency is 5% to 10% higher than that of the conventional gearbox variable speed power generation device.
Submarine tidal generators are like putting wind turbines into the sea. “Classmate Wang introduced that the fan diameter of the real machine is more than 7 meters in diameter, and carbon fiber nanomaterials are used in the wings. During the development process, several technical difficulties such as sealing and seawater corrosion are overcome, and the quality goal of trouble-free sea time greater than 1 year can be achieved. The equipment is launched into the offshore waters by the ship at a distance of about 16 to 40 meters, so long as the power flow meets the flow rate of 0.6-1.3 meters per second, it can generate electricity (Correspondent Liu Zhenhua, Wang Jiangao)
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