All offshore wind power in relation to the status quo and the difference-Hummer wind turbine

Home > > Wind turbine news > > All offshore wind power in relation to the status quo and the difference

All offshore wind power in relation to the status quo and the difference

Large, variable-speed operation, variable and non-paste from the gear box is the world¡¯s wind turbines equipment, the development of a new trend. Now the world¡¯s MW-class wind turbine already has a commercial value, such as the United States, the mainstream model is the 1.5 MW fan; Danish mainstream model is 2.0 ~ 3.0 MW fan; as early as in 2004 at the Hanover industrial Bo, 4.5 MW wind turbine i.e. available. At present, the single largest capacity wind turbine is the German Re Juan power company has a capacity of 5 MW generation unit.

Wind power industry in the future technology development trends are: greater capacity, new structures and materials, sea fans.

The past 20 years, the international crew on the large-scale wind power technology is becoming mature. Continues to reduce the cost of wind power and expand the economic use of available wind resource, under the goal-driven, international wind turbine technology continues to develop offshore wind turbine-specific. At present, MW wind turbine below the rank of the stall regulation technology is still widely used approach, MW level and above, commonly used in new units of variable propeller speed constant frequency of advanced technologies.

In recent years, direct-drive technology, the rapid development of this technique to avoid the transmission link of the gear box and components, and the unit¡¯s reliability and more efficient to develop a good prospect.

At present, the international large-scale installation of 2.5 ~ 3.5 MW units, the general use of lightweight, high-performance glass fiber blades, the larger leaves of 5 ~ 10 MW, has begun to try to quote the carbon fiber material. In order to facilitate the construction of floating crane, offshore wind farm built in the depth of generally 3 ~ 8 m at. With the installed capacity of the sea than on land costs increased by 60% (23% sea-based, line accounted for 20%; land is only about 5% each), electricity consumption increased by 50% or more.

It is noteworthy that, even if there is the mainstream fan motor constantly expanding capacity to 10 MW-class giant offshore wind turbine development trend of Europe and the United States wind power industry that the 2 ~ 3 MW unit capacity below the rank of the units will continue to exist for a long, In other words, multi-volume series models will co-exist to meet the various segments of wind power market.

China has rich wind energy resources offshore. 10 m water depth offshore wind energy resources of about 100 million KW, offshore wind energy resources in 20 m water depth of about 300 million KW, offshore wind energy resources in 30 m water depth of about 490 million KW. The value of China¡¯s offshore wind energy is the land of wind three times, has broad development prospect.

Despite the very good prospects for offshore wind power generation, its development is far more difficult than land-based wind power generation system construction, until the last century, only 90 years a number of countries have begun substantive attempt.

The end of 2007, China¡¯s first offshore wind power project --- 100,000 KW Shanghai Donghai Bridge offshore wind farm construction. Dalian Heavy Industries Crane Group in MW-class wind turbine tender bid in one fell swoop, success with the project owner signed the Shanghai Donghai Electric Company, the first batch of 34 units of 3 MW installed capacity and the largest land and sea of dual-use wind turbine. At the national, Liaoning Province, Dalian city government¡¯s strong support, business investment 240 million yuan, Dalian City Industrial Development Fund grants 30 million yuan, after a year of hard work, Dalian Heavy Industries Crane Group has successively tackled a number of technical difficulties , breaking the monopoly of foreign technology, led by Taiwan 3 MW wind turbine development of domestic production and provided technical support, while achieving a growth rate of 3 MW machines, wheel hub, machine seat and other core components of the internal self-supporting. Earlier this year, lifting the Group of Dalian Heavy Industries has developed China¡¯s first independent intellectual property rights of the 3 MW wind turbine success off the assembly line, March 20, wheel hub height of 90 m, impeller diameter of 90 m, weight of more than 400 T, Fan and marine-based pile cap connections installed successfully.

At present, except in the first 3 MW wind turbine units to the user site, the same batch machine prototype developed in four sets in the other three generating units are being made final before the plant, and network testing. East China Sea, Taiwan 3 MW wind farm 34 fans will be before the World Expo in 2010 in the first half to complete all the installation and commissioning, and put into operation. The East China Sea East China Sea Bridge wind farm in Shanghai, east side of 1 ~ 4 km, Nanhui 8 ~ 13 km coastline south of the area of Shanghai. Wind farm is composed of 34 units capacity of the nation¡¯s largest single wind turbine, with a total installed capacity of 102,000 KW, designed annual power generation using the number of hours for 2600 hours, the annual electricity consumption of 267 million Internet KW.h. Shanghai Donghai wind generators Co., Ltd. responsible for the investment to develop the East China Sea wind farm projects in the East China Sea wind farm by the Shanghai Investigation and Design Institute of Design.

Japan¡¯s Mitsubishi Heavy Industries expects the global wind power will rapidly expand the scale of 2008, additional capacity of wind power generation equipment 25 KMW, 2013 Nian would add another 50 KMW. Mitsubishi Heavy Industries is Japan¡¯s only large-scale wind turbine manufacturer, is currently the world¡¯s total market share of 3% to 4%. Mitsubishi Heavy Industries, the environment, energy-related products, sales of the scale of about 1.9 trillion yen in 2007 to 2012, plans to increase to 3 trillion yen, the wind generator is the heart of Mitsubishi Heavy Industries, one of the products. Mitsubishi Heavy Industries plans to actively participate in offshore wind power equipment market competition, If everything goes smoothly, the earliest in 2011 to set up overseas wind power blades and other equipment production base in Europe and the U.S. demand for electric power companies sell. They expected, due to the area and equipment, transportation constraints, the future trends in wind power generation will rise from the transfer of land to the sea. Thus, large-scale wind power generation equipment in the production of quite competitive Mitsubishi Heavy Industries, the occupation of the world¡¯s offshore wind power equipment, 10 percent of the market as its development goals. They plan to develop rated output power of 5 ~ 7 MW class large-capacity wind turbines, blade diameter of about 130 m. Currently, the company¡¯s own production of wind turbine rated output power of 2.4 MW, blade diameter 95 m.

Offshore wind power generation method is divided into two categories, namely a seat in the shallow end of the floating type and in the deep-bodied.

At present, the seat bottom Offshore wind power generation by wind power companies, etc. He Lanwei Stas in parts of Europe into practical use, while the floating-body deep-sea offshore wind power generation is no precedent. In this regard, Mitsubishi Heavy Industries in the development of the industrial scale, you will participate in seat at the end of the first type, 2 ~ 3 years later initiated the development of floating-body. They plan to take to buy, joint ventures, etc. In Mexico, the U.S. East Coast areas of the production base. There are also other places in Europe, plans to set up production bases in order to ensure that the company involved in offshore wind power equipment market competition strategy.

Offshore wind power generation for Chinese manufacturing enterprises in terms of fans, is a new topic. However, the offshore wind power market in this new economic growth point is China¡¯s wind power industry, new opportunities for development.