Wind Power,Wind Turbine Manufacturer » Wind Turbines http://www.ahjlkj.cn Professional Wind Turbine、Windmill Power、Wind Power Generators in China Thu, 02 Feb 2012 12:54:27 +0000 http://wordpress.org/?v=2.9.1 en hourly 1 Sinovel SL6000 series wind turbines is China’s first self-developed http://www.ahjlkj.cn/archives/1018 http://www.ahjlkj.cn/archives/1018#comments Thu, 02 Feb 2012 12:54:27 +0000 admin http://www.ahjlkj.cn/?p=1018 Sinovel SL6000 series wind turbines is China’s first self-developed, with completely independent intellectual property rights, global technology leader in the 6 MW grid-friendly wind turbine.

Currently on a global scale, in the field of offshore wind power, 6 MW wind turbine stage of commercial application is still in the blue ocean, only the world’s number one wind power equipment manufacturer Vestas announced that the Danish windmill power for Germany games developers in the German North Sea PNE’s offshore wind farm to provide 15 sets of 6 MW offshore wind turbines.

October 8, 2011, Sinovel 6 MW offshore small wind turbine in Sheyang County, Jiangsu Province port industrial zone to complete the first sets of lifting.

“Five” will be China’s accelerated development of offshore wind power for five years. According to the “second five” renewable energy plan in 2015, China will build offshore wind power 500 million kilowatts, the formation of offshore wind power set of technologies and the establishment of a complete industrial chain. After 2015, China’s offshore wind power will enter large-scale development phase, reached the international advanced level of technology. China’s offshore wind power by 2020 will reach 30 million kilowatts.

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]]> http://www.ahjlkj.cn/archives/1018/feed 0 Chinese wind turbines producers have witnessed http://www.ahjlkj.cn/archives/1016 http://www.ahjlkj.cn/archives/1016#comments Fri, 27 Jan 2012 13:27:53 +0000 admin http://www.ahjlkj.cn/?p=1016 Chinese wind turbines producers have witnessed their market share rise dramatically in the past few years, states research consultancy Frost & Sullivan (F&S).

Two of the top Chinese wind turbine generator producers now rank among the global top three manufacturers by megawatts of capacity sold. The rise has been fuelled by domestic demand for wind power and a requirement for 70% of wind turbine components to be manufactured locally, says F&S renewable-energy research manager Alina Bakhareva.

However, there is a dark side to this story of rapid success. China has witnessed, by far, the highest number of accidents caused by failures and malfunctions of wind generator, including massive power outages and even some fatalities. With its domestic market saturated and clear signs of overcapacity and upcoming consolidation, some of the biggest Chinese producers have announced plans for international expansion, she explains.

While there is no doubt of the Chinese manufacturers’ ability to learn quickly, adapt and alter the technology to bring the costs down, F&S believes that the wind power market presents a tougher challenge for the Chinese to crack.

“Firstly, there are a number of technology- related quality issues that the Chinese manu- facturers will have to sort out before they are able to deliver a technology solution on a par with the established Western manufacturers. The technology gap is expanding, with US industrial group GE, wind energy company Vestas, diversified technology group Siemens and other companies investing in improvements that increase their turbines’ availability and reliability.

“A technical fault leading to reduced availability presents a huge risk to a developer and can wipe out a large chunk of expected profits. A faultless operating record will have a posi- tive impact on project developers, who will be more confident in the quality of the Chinese small wind  turbines. But we need to [take into consideration] that it will take years to build this trust. We are witnessing Chinese wind turbine manufacturers taking the first steps in the right direction, although the government had to step in and set stricter regulations”, adds Bakhareva.

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]]> http://www.ahjlkj.cn/archives/1016/feed 0 Chinese wind turbines manufacturers pledged on Friday to actively http://www.ahjlkj.cn/archives/1014 http://www.ahjlkj.cn/archives/1014#comments Wed, 25 Jan 2012 13:55:37 +0000 admin http://www.ahjlkj.cn/?p=1014 Chinese wind turbines  manufacturers pledged on Friday to actively challenge a US investigation that could lead to crippling import duties on more than $100 million worth of wind-energy towers from China and Vietnam.
The pledge came after the US Commerce Department announced on Thursday that it was launching anti-dumping and countervailing duty investigations on utility-scale wind towers from the two countries.
The items covered by the investigation are the steel towers that support the engines and rotor blades used in wind turbines with electrical power-generation capacities in excess of 100 kilowatts, said the Commerce Department in a statement.
It alleged China had a dumping margin of 213.54 percent in windmill generator -tower prices.
The decision adds to recent friction in the clean-energy trade between the world’s two largest economies.
The Commerce Department is already investigating charges that Chinese solar-panel makers engage in unfair trade practices.
The Wind Tower Trade Coalition (WTTC), a group of US wind-tower manufacturers, filed the complaints with the US Commerce Department and the International Trade Commission (ITC), saying that companies from the two countries are dumping wind turbine generator towers at prices lower than the US market cost.
The WTTC had previously said it was asking for anti-dumping duties of 64 percent on imports from China and 59 percent from Vietnam.
But in its announcement, the Commerce Department said China is alleged to have undercut US wind-tower prices by nearly 214 percent and Vietnam by 141 to 143 percent.

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]]> http://www.ahjlkj.cn/archives/1014/feed 0 It’s production of renewable energy equipment has soared http://www.ahjlkj.cn/archives/1009 http://www.ahjlkj.cn/archives/1009#comments Mon, 16 Jan 2012 13:34:26 +0000 admin http://www.ahjlkj.cn/?p=1009 China is already the world’s largest producer of photovoltaic panels and wind turbines, two engines of the alternative-power revolution.

It’s production of renewable energy equipment has soared. In 2010, the country accounted for about 50 per cent of all solar-cell manufacturing, the equivalent of 8,000 megawatts. It of windmill generator has been estimated that this rose to 18,000 megawatts by the end of last year. As a plethora of companies added their products to the market, prices for panels plummeted by about 50 per cent last year alone.

Visitors to the WFES will be aware of China’s influence on the market: its companies represent the largest contingent at the event, and more than 50 of them have pitched their stands in the exhibition centre.

China’s role in the renewables sector has not gone unnoticed by Abu Dhabi, which has set a target for its own renewables sector to provide 7 per cent of its electricity by 2020. Cooperation with China is one plank in its strategy, according to Masdar, the capital’s clean-technology company.

“Masdar has ambitious plans to further relations and home wind turbines cooperation with China in the acceleration, development and deployment of renewable energy and clean technology and is involved with China on a number of levels across multiple business units,” said Sultan Al Jaber, Masdar’s chief executive.

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]]> http://www.ahjlkj.cn/archives/1009/feed 0 raising import tariffs on wind turbines generator towers http://www.ahjlkj.cn/archives/1007 http://www.ahjlkj.cn/archives/1007#comments Tue, 10 Jan 2012 14:03:15 +0000 admin http://www.ahjlkj.cn/?p=1007 The Wind Tower Trade Coalition (WTTC), a coalition of producers of windmill  towers in the US, filed a complaint with the US Department of Commerce and International Trade Commission (ITC) on Dec 29, claiming that Chinese and Vietnamese wind power generators producers are dumping products in the US market at below-cost prices and receiving government subsidies.
The new petition, which covers metal towers that hold turbines aloft at wind farms, followed a solar panel probe into Chinese manufacturers initiated by a group of US companies in October. The latest petition is seen as likely to make renewable-energy trade disputes between the US and China more heated.
The petition aims at raising import tariffs on wind turbine generator towers from China to more than 64 percent.
Titan Wind Energy (Suzhou) Co Ltd, one of the top wind power producers in China, was listed in the petition. According to industrial insiders from the association, the company provides wind towers to many wind turbines manufacturers in China.
Zheng Kangsheng, secretary of the board of Titan, said the company will cooperate with the ITC’s investigation. Zheng said it was premature to talk about any possible adjustment in the company’s overseas strategies.
Han Junliang, president of China’s biggest wind turbines producer, Sinovel Wind Group Co Ltd, said the petition will not have an effect on the company.
Ken Xu, vice-president at Vestas Wind Technology (China) Co Ltd, said the company exported 70 wind towers to the US in 2011 and the number will increase this year. Titan is one of the two wind tower suppliers to Vestas.

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]]> http://www.ahjlkj.cn/archives/1007/feed 0 2020 stand-alone wind turbine power will reach 20 MW http://www.ahjlkj.cn/archives/982 http://www.ahjlkj.cn/archives/982#comments Mon, 05 Dec 2011 15:14:54 +0000 admin http://www.ahjlkj.cn/?p=982 2020 stand-alone wind turbine power will reach 20 MW. This conclusion comes from wind power generators projects in Europe Upwind feasibility study report.

A country with 200 m rotor diameter, 20-megawatt electrical power of giant wind turbines will be put into use in 2020. According to Upwind wind energy project feasibility study report, significant technological innovations and design development will be necessary.

Expansion fan will be an important expansion of the European wind energy opportunities, particularly through the construction of offshore wind farms, making it possible to achieve, by 2030 wind power to provide electricity for Europe 26-34% electricity target.

As significant technological advances and design changes, the Netherlands Energy Research Centre of Jose Boyle Siken Si said: “To build 20MW of fans, not just the current 5MW turbine upgrades simple, but we have determine the design, materials and innovation necessary to operate the fan. ”

For example, the leaves will reach 200 meters in diameter, and will be more lightweight and flexible. In addition, the leaves also equipped with sensors to achieve real-time transmission, and thus make better use of wind energy, and can check the blade tension.

Of course, this R & D expenditures but also to overcome the problem, the European Wind Energy Association CEO Christian said: “If the EU does not make a clear home wind generator commitment to the research and development, then the 20MW turbine will eventually vanish into thin air.”

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]]> http://www.ahjlkj.cn/archives/982/feed 0 2.5MW wind turbines high-speed permanent magnet http://www.ahjlkj.cn/archives/980 http://www.ahjlkj.cn/archives/980#comments Sat, 03 Dec 2011 14:10:11 +0000 admin http://www.ahjlkj.cn/?p=980 An independent intellectual property rights, the maximum power of 2.5MW wind turbines high-speed permanent magnet synchronous motor drive success in the South off the assembly line.

The generator has a high efficiency, small size, compact, low cost, high reliability, low maintenance and many other advantages, the use of full-power converter control, the unit has good low voltage through the performance; with direct drive permanent magnet synchronous wind turbine generator compared to greatly reduce the volume, less weight, in particular, greatly reduced the amount of magnet. High prices in the earth today, the product cost advantage is more prominent, with good market prospects.

2.5MW wind turbine high-speed permanent magnet synchronous marks the successful development of independent research and development of China’s enterprises already have the international advanced level of high-speed permanent magnet synchronous wind turbine capacity.

According to China Energy Research Institute National Development and Reform Commission said in 2020 the cost of land-based wind power and coal will be flat, then wind power will be gradually out of state subsidies, “cost” has become the future development of windmill power industry is facing a new “bottleneck . “CSR launched 2.5MW high-speed permanent magnet synchronous motor wind turbine, a generator to achieve low-cost manufacturing, and the unit easy to achieve low voltage ride through, technology leader in the domestic level.

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]]> http://www.ahjlkj.cn/archives/980/feed 0 Permanent magnet synchronous wind turbines off the assembly line http://www.ahjlkj.cn/archives/978 http://www.ahjlkj.cn/archives/978#comments Tue, 29 Nov 2011 09:32:53 +0000 admin http://www.ahjlkj.cn/?p=978 Today, CSR Zhuzhou Electric Co., Ltd. has developed China’s first proprietary high-power high-speed permanent magnet synchronous wind turbines off the production line, marking China’s enterprises with independent research and development has reached the international advanced level of high-speed permanent magnet synchronous wind power machine’s capabilities. This section the maximum power of 2.5 MW wind generator, high efficiency, small size, compact, low cost, high reliability, low maintenance and many other advantages. It uses the full power flow control, the unit has good low voltage through the performance. With direct drive permanent magnet synchronous wind turbine compared to the greatly reduced volume, less weight, in particular, greatly reducing the amount of magnet, cost advantage is more prominent, with good market prospects.

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]]> http://www.ahjlkj.cn/archives/978/feed 0 low-speed wind turbines http://www.ahjlkj.cn/archives/975 http://www.ahjlkj.cn/archives/975#comments Thu, 24 Nov 2011 15:10:41 +0000 admin http://www.ahjlkj.cn/?p=975 China’s largest wind turbine manufacturer Sinovel has announced that its hosted 863 projects “1.5MW wind turbine low wind speed the development of key technologies and whole development of the” issue recently passed expert review and acceptance.

The main subject of the development the following applies IEC III class wind zone (annual average wind speed in the 5-7 m / sec) and low-speed wind turbines. Acceptance Group believes that Sinovel independently developed SL1500/82 and SL1500/89 two low-speed wind turbines are subject to complete the mandate of the mission statement, objectives and assessment of key technical indicators. Both low-speed wind turbine cut-in speed can reach 2.8 m / s, rated wind speed 10.5 m / s, 10 m / sec. With cut-in speed is low, generating large amount of low-speed zone, etc., existing on the market than the type of wind turbine can adapt to the low wind speed areas, while significantly reducing the unit weight and manufacturing costs.

Both wind turbine has achieved mass production, to achieve installed capacity of 3,200 units, running in good condition. Which, SL1500/82 unit in May 2010 by the Germanischer Lloyd (GL) of the fan load, the power curve, noise, power quality and other field tests, and in October of this year’s A-level access to GL design certification.

The task force leaders, Sinovel chairman and president, said Han Junliang, Sinovel as a national priority to support the wind turbine manufacturer, has always adhered to technological innovation, domestic, large-scale, large-scale, international as long-term development strategy. “Sinovel will continue to increase R & D investment, improve the company’s R & D capabilities, trying to create the world’s most competitive small wind tubines equipment business, the first five years to achieve the strategic goal of global challenges.”

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]]> http://www.ahjlkj.cn/archives/975/feed 0 The current level of wind turbines http://www.ahjlkj.cn/archives/970 http://www.ahjlkj.cn/archives/970#comments Tue, 15 Nov 2011 14:32:15 +0000 admin http://www.ahjlkj.cn/?p=970 The current level of wind turbines, is based on the principles of helicopter propeller developed, and is actively running propeller aircraft, propeller above the formation of a vacuum, so that following the formation of compressed air, to overcome the weight of the aircraft after the aircraft to increase flight, the aircraft must be propeller reach a certain length and speed, the center of the compressed air does not cause rapid spread outward to generate sufficient buoyancy, the propeller can only reduce the length of a certain quality of the propeller to increase the rotation speed of the requirements, so the propeller made into thin air.
Levels of wind turbine blades is a passive operation, the blade can only work to the wind, horizontal wind turbine blades made of thin, the wind force on the blade of a small, wind force less than 10% utilized , the wind can not take full advantage of the wind wasted resources.
I designed this offset, big-leaf structure, leaf made into round, square, oval and so the status quo, this leaves a wide blade to increase the width of the structure to improve the ability to catch the wind, the leaves from the vertical axis can also be added to increase long-distance torque, adjust the blade angle can be run automatically adjust the rotation speed, the wind energy conversion rate limitations, as well as start and low wind speed, fully aerodynamic. Significantly reduced leaf length, shorter, and significantly reduce the weight greatly efficient use of wind energy, and maximize torque, which in the same industry is a world first. The curved shape of the blade can be used, which can increase blade strength, but also can improve the ability to block the wind turbine generator , can significantly improve power generation efficiency. The blades used in power generators benefit from the theoretically calculated 6-10 m long blades can stimulate MW-class small wind turbines, and small footprint, height 10 – 30 meters, and can be 2-3 units and machine use, acting in all directions, conversion rate, start fast, fans of high concentration, easy to manage and maintain.
Offset, big-leaf structure can be carried out in the breeze start, do not tail the reorientation, simple structure, easy maintenance, power generation, high efficiency, easy-to-manufacturing process, low rpm, the center of gravity down, safety, low running costs, easy maintenance, no noise pollution and other significant features

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