The upstream side, spare parts prices, the downstream side of large power companies to “low bid”, the wind power industry environment fully equipped business optimism, profits increasingly thin. According to insiders, because in recent years, countries in developing policies to promote wind power industry, wind power assembled in our country’s business has been great development. At the same time, there are a lot of electrical, motor-related enterprises and the introduction of foreign diversification mature technology, so that wind power in China in recent years, fully equipped business after another, the industry competitive pressures continue to grow. Noteworthy is that, faced with the demand is much greater than the supply of spare parts and raw materials prices, wind power assembled corporate profitability declined. Brokerage researchers said the reason for this situation is not only because the wind turbine machine output is growing, it is mostly because of China’s wind power components a high degree of specialization, with the accelerated replacement fan, wind power wind turbine machine parts it is difficult to keep up with the pace of development. Example, 850 kilowatts of the machine has been updated to 1.5M watts or even higher, generators from the developed to the direct-drive gear-type permanent magnet. This is one of the listed companies to march on behalf of business is electrical (600,112), the company recently has stated that its holding subsidiary, Guangxi 10000 Deas Galaxy Ai Ai 10000 Wind Power Co., Ltd. will provide sales AV928/2500KW diss Direct Drive Permanent Magnet Co., Ltd. 80 sets of wind turbine for wind farms in Vietnam MauSon needed for the building. Secondly, as steel, petroleum, chemical fiber, resins and other raw materials prices, so that the price of spare parts there are certain to rise. In the face of strong upstream and downstream of large power companies, wind power companies the right to speak has been assembled is not enough. It is understood that all along, most of the implementation of China’s wind generator grid, grid-connected power from large power companies to firmly grasp. Wind an investment large, slow recovery period, only large enterprises have financial investments. Large-scale electric power enterprises the purpose of the acquisition is due to state regulations must meet the 13 percent quota of renewable energy generation, rather than considering using wind power to make money, so they do not rush to the upper hand and electrical equipment for expanded reproduction. Wind farm on the part of the state of the concession tender, great because they want to work out the guidance of wind power prices, but often tender the lowest bid price, then no doubt the whole industry, electricity prices remain low. And thus also makes wind power companies are looking to fully equipped, “correspondingly,” the desire to enhance profit margins difficult to achieve. Industry experts pointed out that with the national team assembled the industry production capacity of wind power policy of gradual implementation of the restrictions, as well as the wind industry is still moving on the fast track in the development of the fact that the future of wind power generator assembled the industry is expected to improve profitability, high-quality companies will continue in the competition development and growth. Statistical and forecasting data show that, as of the end of 2009, China will have eight municipal wind turbine installed capacity accumulated over 1 million kilowatts, respectively Xilin Gol League in Inner Mongolia, Ulanqab City, Chifeng City, Bayannur City and Tongliao city of Zhangjiakou City, Hebei, Jilin white city of Jiuquan City, Gansu Province. In 2010, China will in the 23 provinces there are any new wind power installed capacity, with the exception of Taiwan Province, other provinces, the country is expected to add capacity will reach 10 million kilowatts or more.
Although the cut-off by the end of 2008, the U.S. wind power generator installed capacity reached 25.17 million kilowatts, has overtaken Germany’s 23.9 million kilowatts, ranking first in the world. But the vast majority of U.S. wind turbines development mainly in areas of onshore wind, offshore wind power development is slow. Investment Advisor in the latest release of “2009-2012 China’s wind power equipment industry, the prospects for investment analysis and forecast report” shows that the current global development of offshore wind farms mainly in Denmark, the Netherlands, the United Kingdom, Sweden, Ireland, Germany and other countries. In this regard with the EU countries can be developed in a relatively small land-based wind generators resources on the other hand, offshore wind power development due to a higher technical difficulty, only those already in the field of wind power development has accumulated sufficient experience in the EU countries have the ability to development of offshore wind power project, while the emerging countries of the offshore wind power generator installed capacity in the gaps in the basic state. Jiang Qian believed that the reason why offshore wind power is not yet in the global promotion of large-scale, mainly because there is no breakthrough in its technical bottlenecks. However, offshore wind farm are generally close to the power load center, coupled with the advantages necessary to grab the land area, the prospects for offshore wind power at sea is relatively bright. The U.S. up to 900GW of offshore wind turbine potential, if fully exploited, it should be on the entire global wind power industry a huge boost.
Three years ago, Broad Group decided to enter the wind generators project.
At that time, faced with two choices: First, spend huge sums of money abroad to buy drawings or production license can be obtained in the short term huge profits, which is a lot of wind power of domestic enterprises to go the road; The second is the road of independent research and development, creating
China wind turbines products own brand, but it is difficult to see in the short term profits, will require substantial human and material resources to carry out technical research and development, are doing to “lose money trading.”
Far-reaching decision-makers believe that only by establishing its own national brand can stand at home and abroad in a more favorable long-term competitive position, even if the process of building its own brand is ‘bad bargain’ have to do it! Yuanda Group, an emboldened full discharge
schedule: three years, at least to dedicate 10 billion, making wind power generator capacity to reach 300-500 units, the market extended to the whole country from Liaoning.
Create its own brand, the key is to master the core technology for this, great group played a “winning card” – a combination of the establishment of domestic and foreign R & D team.
Group specializes transferred 80 technical backbone of forming a “wind power R & D team,” while seeking cooperation with the Swiss company ABB, from the core technology introduction, digestion, absorption and improve the start, walking the road of independent research and development.
Today, great group to produce 1.5-megawatt wind turbine, the then built the largest in Asia, planning the most rational assembly plant.
We use sophisticated and advanced equipment to produce 1.5 megawatts of additional fans, and strive to 2-3 years time to the international market.” Yan Lingyu confidence.
Developed a core technology with a 1.5-megawatt wind turbine doubly-fed type, Yan Ling-yu and his team spent a year’s time, but the choice of where loading and debugging Querang Yan Ling-yu ran their legs off.
Ultimately, this Typhoon aircraft testing ground for the election in his home – Kohei.
Where the sand is located in the southeast Horqin, with an average wind speed of up to 7 meters per second, is the best wind farm in Liaoning province.
Reporters on the scene to see, despite the winter, but it sets low temperature, for a low speed fan operation is still good.
This is Taiwan, “China’s intellectual-made” The fans have been meeting in Hanover, Germany industrial Bo appearance attracted many foreign companies with lofty Group signed a letter of intent.
The face of China’s wind power generator installed capacity and market share in projects under construction will be 1,200 billion big cake, since the beginning of the implementation of Yuanda Group, “green development” strategy, following the 1.5 MW doubly-fed-type wind turbine wind farm in the Campion official
After the grid this year, the only country with independent intellectual property rights 1.5 MW Direct-drive permanent magnet wind turbine was born again in great groups, technical performance fully meet international standards, marking the Chinese wind power companies have entered the international advanced level
TAIMA photoelectric booth installed in maglev wind turbine model has attracted many visitors.Previously, TAIMA lighting system developed wind-power generation obtained three patents. Lin Wenqi introduction, only R & D time on this project over five years, spent more than 1,500 yuan.If you do not based on long-term, is insist on not down. The United States is just a businessman at the entrance to the village in the Indus Alexander Wang Lin Wenqi looked a magnetic levitation wind turbine, after the signing of a purchase and sales contracts to require within 45 days will be the first batch of 250 sets of maglev wind power generators are sold to USA and Guam, the second batch of 1,400 units sold in South Korea supplier.
It is understood that magnetic levitation wind generators is used magnetic levitation technology theory, there is no mechanical friction in the motor case, by the wind effect so that fan motor rotation, with a wind starting, high-performance power generation, smooth operation and so on.
Lin Wenqi introduced TAIMA long been engaged in new energy development, design and production of sales, product sales to more than 60% overseas, including the United States, Singapore, New Zealand and Australia. This is the first time the company’s high-tech fair, and they received more than 20 provinces and cities companies to negotiate distribution rights for more than 10 foreign businessmen also have cooperation intention, came to negotiate a daily constant stream of customers. “I did not think the display of the fair so well, I really regret not show his face at the breakfast to the high pay!”
World Energy Council World Energy Congress in Montreal in 2010 in Portland, to the Executive Chairman Stephen TAIMA Photonics booth visits, with excitement, said: “This new wind generator to subvert the traditional wind power generation technology, will promote the use of the process of human wind. “
Laizhou City, completed a total of wind turbines generating capacity 5938.868 kwh, the highest capacity high.
Town is located in the coastal areas of Laizhou earth wind generators farm wind turbines were installed 39 units, with a total installed capacity of 48.5 megawatts. Period of good wind for safe operation and protection work, struggling to minimize power outages, many wind power generation, to ensure the quality of wind power generation. Laizhou Wind Farm to break the previous run maintenance mode to protect the safety of electrical equipment and personnel under the premise of taking 24-hour reset the fan blower to reduce downtime as much as possible, so that power loss to a minimum. Winter favorable wind resources, wind farms to create the conditions for the overall operation. From November 2 to November 8, Yantai and Laizhou Dongyuan Wind generators Power Group, 19-turbine wind farm within a week completed a total of 2.52846 million kwh electricity, the highest since the weeks of the commissioning of new generating capacity is high; November 9days to complete generating capacity of 997.26 thousand kwh, the highest daily production capacity has been high. As of the end of October, Laizhou completed a total generating capacity of wind farms 5938.868 kwh.
From Hohai University, efficient use of water resources and Engineering, National Engineering Research Center Security jointly developed by the Chinese wind turbine has been a major breakthrough in key technologies with independent intellectual property rights of 10kW vertical axis wind machines have been developed and manufactured, and sold to the European market.
China’s wind generators industry has developed rapidly, in 2008 the national total installed capacity of wind power to reach 12.2 million kilowatts, is “Eleventh Five-Year Plan” task two times. In 2009 the national total installed capacity is expected to reach 20 million kilowatts.
Statistics show that domestic wind turbines machine manufacturing enterprises with more than 70, more than other parts of the world’s total wind power equipment manufacturers.
However, the core technology and key components, the various enterprises is the introduction of route to go. Rely heavily on the introduction, the core technology and independent innovation capability deficiencies, resulting in high cost of wind power. The key to the wind turbine technology for basic research on China’s wind power development significance.
According to Water Resources and Hydropower Engineering, Hohai University, Professor Zheng Yuan, at present the large-scale wind turbines are horizontal axis wind turbine. But the horizontal axis wind turbine design technology complex, dozens of tons of weight to be installed in the cabin altitude of nearly 100 meters, the power exists yaw losses, these are the domestic causes of the higher cost of wind power.
In China, developed its own vertical axis wind machines without the need for wind, there is no yaw power loss; blade design is simple, completely self-design; cabin and gear box can be placed under the wind wheel or on the ground, maintenance costs, lower; vertical axis wind turbine noise smaller than the horizontal axis, noise pollution, reduced; In addition, laboratory studies have shown that the wind energy utilization coefficient of not less than the horizontal axis.
“Calculated and experimental results prove that the design of the spiral optimized S-type wind wheel wind than traditional S-wheel wind energy utilization of a net increase of 6%. This is in terms of S-type wind turbine is a very significant improvement.” Zheng Yuan said.
But here, some experts also said that wind power equipment manufacturing industry is relatively weak. Some developed countries, compared with foreign countries, China’s wind energy development, whether in technology, scale, level or speed of development, there is a wide gap. The low level of power generation equipment at home to become China’s wind power industry of the main obstacles.
Due to lack of long-term investment, China’s wind power equipment manufacturers to produce relatively small size, less intensive, product quality is not very stable, cost-effectiveness is also relatively low. High costs, high prices are constraining wind power technology commercialization and promote the use of the the biggest obstacle.
Business degree from a technical perspective, wind turbine life expectancies, it is difficult to ensure that technical service life of 20 years, hence the need to improve the reliability of all components. This can be through the fan system optimization design, selection of better materials and advanced controls and other measures to achieve.
Electrical equipment manufacturers the world’s power has the upper hand in Germany, Spain, the Netherlands, Denmark, the United States and other countries in the world could be utilization of wind from the original 50% to 98%, wind energy utilization coefficient of ultra-40%.
But in recent years, China’s wind power equipment and technology to improve and manufacture of rapid progress. In August of this year, Liaoning Province, Shenyang City, China Chong Wind Energy Co., Ltd. have complete independent intellectual property rights of the 20 units 1.5 MW wind turbines in Inner Mongolia recently Saihantala wind farm commissioning successful, the first group of 240 hours have passed the acceptance the successful realization of the grid. The 20 wind generators, the whole cost of wind turbines than abroad reduced by 20% to 30%, the average utilization rate of 99.64% and the fans.
Recently, Kim Purple Wind Power Station in Guangxi, a 49.5-megawatt project in the resource county grand foundation-stone laying ceremony was held, marking the first wind power projects in Guangxi officially started, which opened in Guangxi “green” energy development of new prelude.
It is learned that the mountain tops, gold purple power project in Guangxi in 2009 to include key construction projects. The project is the South Branch of China wind turbines Investment Corporation investment and construction, planning a total installed capacity of 99 MW, plans developed in two phases.
The project is the development and utilization of clean energy projects, consistent with national development of renewable energy requirements, for the protection of ecological environment and conserve resources, improve energy structure in Guangxi, improve the diversity of energy supply in Guangxi, and security will play a positive role in promoting .
Wind power generation due to unpredictable winds, making wind turbines the Internet is evolving into oscillation, when the wind power system disturbance frequency close to the inherent oscillation frequency, can cause significant power oscillation, and the oscillation amplitude as the disturbance will be the magnitude of change. Perturbation amplitude not only with the wind generator disturbance, but also with the parameters of the system itself, and therefore could be considered two-pronged approach to reduce disturbance on the power grid forced oscillation. Wind power will not only have forced oscillation system to produce, but also the transient stability of the system have an impact. Of course, this effect is small in wind power installed capacity is negligible, but when once the wind power in the system occupies a relatively large number of shares, this effect can not be ignored, otherwise the grid when a sudden change of wind power, the system There may be too large due to oscillations can not remain stable and transient loss of stability, and there the collapse of large power systems. In short, if and to network with higher share of wind power is rather weak, and the net negative impact is enormous.
Great efforts to develop wind generators as a clean energy has been wind power issue has become increasingly subject to the power of staff concerns. But the wind as an intermittent energy sources, combined with the forecast accuracy of wind energy resources can not be fully in line with the power system to the power quality requirements, to seek new ways and new thinking to resolve the impact of wind turbines on the system naturally becomes the work of a number of the power industry personnel targets. Use of static VAR compensator can quickly compensate for reactive power, wind power generation to maintain a stable power supply voltage of the access point, but can not adjust the active power output of wind farms. The use of battery energy storage system can be a better solution to this problem, and can guarantee the stability of the Internet voltage, but also can compensate for active power, the system will not be adversely affected. May choose from a battery, rectifier devices and inverter device composed of flexible AC transmission system as energy storage system.
2009 is the year of new energy. Wind power generation is the main force of new energy sources. Wind turbines industry development planning in recent years has repeatedly adjusted to achieve a high growth doubling year after year. Experts predict that the next 10 years to 20 years, there will still be large-scale development of wind power. On the one hand the domestic wind generators industry is in full swing to build, while the other hand, fell into wind power equipment, the cycle of excess capacity.
Fan manufacturing industry barriers to entry is low, the current domestic wind power generator manufactured in nearly 70 companies, which more than 70 machine manufacturing enterprises 80% are simple assembly plant. Technology re-introduction, lack of self-innovation capability is a common problem of these wind power companies, while the introduction of professional knowledge, work experience, talent is the best wind power an effective way to change the unfavorable status quo.
However, the wind turbines industry, talent shortage is global, and China now there have been such a situation. The lack of professionals has become a bottleneck in the development of wind power plant industry. Wind power professional and technical personnel, designers and developers, industry management talent, and so the relative scarcity of after-sales management personnel.
But also be conducive to the good news, the domestic many colleges have set up wind generator expertise. Polaris electric power networks of excellence, according to recruitment consultancies, North China Electric Power University, 2010 Bachelor graduates in the forthcoming session of the wind power to market.
Polaris electric power networks of excellence from the data showed that many wind power companies have issued the demand for wind power talent, there are many gold wind science and technology, Chinese instrument electric, 31 electric, Zhejiang arrived, Shanghai Electric and other domestic wind power giant.wind turbines business-to on-site engineers, maintenance engineers, and so demand for engineering talent relatively large, for mechanical design engineers, electrical design engineers and other technical R & D Talents demand is relatively large..
News from the statistics department, said in the first three quarters of the Urumqi Economic and Technological Development Zone, the economic value of wind power industry 10.8 billion yuan, an increase of 132%.
Among them, Golden wind turbines science and technology in China’s wind power generating units of the total production and additional production volume in the first half of this year ranked first in the country. As China’s current wind generators equipment manufacturers, leader of a group, Goldwind Technology Co., Ltd. With independent R & D and marketing capabilities, market performance for eight consecutive years more than 100% increase.
Xinjiang Urumqi Economic and Technological Development Zone, an active extension of wind power equipment manufacturing industry chain, construction, wind turbines industrial parks, and proposed to build the “China Wind Valley” of the strategic objectives, has attracted a Ailm, Multi Tone, Xin Feng, and a group of Wind power machine supporting domestic and international famous enterprises stationed in parks, wind turbine production in the forefront among the Chinese.
Xin Feng installation is to make use of wind turbine loading and after-sales maintenance services to implement grew up supporting enterprise, Today, the company’s wind power business has been all over the country to install a number of wind power manufacturer, for 3 consecutive years to achieve over 50% growth in core business . Up to now, Xin Feng installed inside and outside the installation of various items at the provincial total installed capacity of wind turbines to reach 1.6 million kilowatts, the company cost-effective for one year a new level.
Goldwind supporting the Danish LM Xinjiang production of the first half of the company’s fan blades also achieved double-harvest production and sales. Golden Wind technology has successfully developed their own successful 1.5 MW, 2.5 MW Direct-drive permanent magnet synchronous wind turbine, 3.0 MW generating units are being developed, while still in high-capacity offshore wind turbine research and development.
