Wind Turbines Manufacturer in China

H10.0-30000W home wind power generator is controlled by a comprehensive smart system.

This smart system is able to automatically seek wind direction and constantly monitor :generator
working status,rotation speed,generator temperature ,wind speed and direction etc .All data will
be transmitted to control center .
When abnormal situation takes place ,our control center will instruct wind turbines to deflect from wind direction .After problem is released small wind turbine will turn to face the
wind direction again and resume generation .

H10.0-30000W home wind power generator, both off grid and grid tied are available.

Application of 30000W home wind power generator
It can drive air condition ( <=30 horsepower), 10kw water pump or other resistive appliances (<=30KW).
Well used in:
Housing and factory and farm
Telecommunication Station
TV Transfer Station
Monitoring Station (military, hydrology, observatory)
Water-pumping Station
shipping

“We expected a slowdown, but the foot hit the brake a bit harder than we thought,” says Kerry Zhou, strategy director at Goldwind, China’s oldest turbine maker and number two in the market. “We had a signal in the fourth quarter, but it became very obvious in the first half of this year.”
Zhou says the government’s tightening of monetary policy, combined with a wave of accidents at wind farms in Gansu province, is jamming the flow of new project approvals.
China moved to control its booming economy at the end of last year amid fears of overheating and rising inflation. It has raised interest rates several times and told banks to hold more cash in reserve. The tightening came after a surge in lending prompted by a stimulus package issued during the financial crisis.
A less liquid market means developers cannot get sufficient capital to finance wind farms.
“A few months ago, we said growth would be flat. Now we think it will probably be negative growth compared with last year. In the worst case, it could be less than 15GW,” Zhou tells Recharge.
That figure would be extremely healthy in any other market. But in China, where new capacity has increased by huge increments in recent years, adding 15GW, after almost 19GW last year, could leave manufacturers loaded with excess inventory as cash flow dwindles.
Developers are responding by postponing payments to wind generator manufacturers, says Zhou. The impact was obvious in first-quarter results when Goldwind said net cash flow from operating activities was negative by 3.9bn yuan, ($560m) compared with a negative 2.1bn yuan in the same period a year earlier, on flat sales.
Sinovel, the country’s leading wind turbines manufacturer, reported negative net cash flow from operating activities of 1.9bn yuan, despite sales growth of 20%.
Sinovel has since delayed payments of some $56m to component supplier AMSC. While not commenting on Sinovel’s case, Zhou says delayed payments from developers will “probably lead to manufacturers delaying payment to the supply side. It’s a chain reaction”.
A series of accidents in Gansu province has also hit new projects, says Zhou. In three separate incidents, hundreds of turbines were disconnected from the grid after voltage dips. State Grid halted approvals for new projects for a period of “about two months”. The restriction has since been lifted, but Zhou says it “postponed a lot of projects and will impact the whole market growth”.

Hummer wind generator is one of the most advanced generators in the world. Made of refined permanent magnetic material, special copper alloy, aviation aluminum alloy and stainless steel, it is highly efficient in power. Due to its smallness, it is able to be placed inside the nose cone to reduce air resistance and increase efficiency.

Due to its advanced technologies, refined materials and unique design, H12.0-50000W wind generator’s wind energy utilization factor is as high as 0.42, while generator efficiency is >0.92.

Smart Control

H12.0-50000W wind turbine is controlled by a comprehensive smart system. Through our years of monitoring on wind turbine operation, we successfully develop an automatic control system for small and medium scaled wind turbines.

This smart system is able to automatically seek wind direction and constantly monitor: generator working status, rotation speed,generator temperature, wind speed and direction etc. All data will be transmitted to control center.

When abnormal situation takes place, our control center will instruct wind turbine to deflect from wind direction. After problem is released wind turbinewill turn to face the wind direction again and resume generation.

H12.0-50000W wind turbine system, both off grid and grid tied are available.

Application of Model H12.0-50000W

It can drive air-condition ( ≤50 horsepower), 10kw water pump or other resistive?appliances (≤50KW).

Well used in:

Housing, factory and farm

Telecommunication Station

Monitoring Station (military, hydrology, observatory)

Water-pumping Station

Main technical parameter:

Wind power is the main sources of renewable energy, at present the used more widely. Wind turbine of roler blades rotate can produce invisible wake, the university of Colorado at boulder atmosphere and ocean sciences associate professor Julie – LunDeKuiSiTe led research team recently that they are studying such drafting in the subsequent to the MHD effect of wind turbine.

LunDeKuiSiTe said, now numerous wind  generator scattered throughout the world, if people can understand how rapidly changing and direction of the wind gusts of wind turbine operation and the effects of wind generator characteristic, then wind can improve the design standard, improve efficiency and reduce energy costs.

Study group members from several units, except university of Colorado at boulder outside, still include the national oceanic and atmospheric administration, the department national renewable energy laboratory and in California’s Lawrence livermore national laboratory. They think, scientists and wind developers will use the results better understand the wind power capacity and improve the wind power stations.

For measuring wind change and drafting behavior characteristic, the researchers plan to use the national oceanic and atmospheric administration called high resolution the development of laser scanning doppler radar equipment to monitoring national renewable energy laboratory wind technology centre of the subordinate countries a wind-driven generator, and by using measured home  wind turbines lidar harmonic radar to measure wind and turbulence. In addition, national renewable energy laboratory has built two each high 135 meters meteorological tower, is used to measure the air temperature and wind and turbulence.

The national oceanic and atmospheric administration belongs to the earth system research laboratory of atmospheric scientist Robert class tower have years of use high resolution scanning doppler laser radar experience, he says that, although people use wind tunnel and the influence of computer drafting established model, but the atmosphere and the model simulation, it is different to more varied and complex.

LunDeKuiSiTe think, even daily atmospheric temperature fluctuations can also affect the wind generators’ wake, and drafting change behavior characteristic can influence the wind generator with multiple rows of the power station of generating capacity, so these home wind generators and detailed observations about how to reduce wake to their influence is very important.

Recently, there is one called “Wind Cube” small wind turbine maximum output efficiency of each monomer is 21.6 kilowatts per hour, per day for an average family saves about 6% of the electricity.

It is understood that each monomer can be linked with other wind generators to form a similar hexagonal honeycomb array of wind power in order to improve wind power generation efficiency. Same time, it is very simple to use, simply nuts fixed to the wall, then pull the trigger slide slot motor switch.

Chinese wind turbine manufacturer Xiangtan Electric Manufacturing Corporation Ltd (XEMC) has unveiled the world’s first 5MW permanent magnet direct-drive offshore-specific small wind turbine.

The announcement follows successful completion of full load, back to back, testing of the turbine in which Converteam participated with its class leading Medium Voltage MV7000 power converter.

The tests, undertaken at XEMC’s generator test facility in Xiangtan in China’s Hunan province, verified critical design parameters of performance and safety as well as overall effectiveness of the new turbine.

China’s first large-scale wind turbine at sea supporting the high-pressure double-fed 5-megawatt wind turbines, recently in Dalian, Tianyuan Motor Co., Ltd., to fill the gaps, the product installed yesterday sent to the user to run. This achievement marks the Tianyuan Motor has acquired a large-capacity wind turbine design and manufacture of core technologies, and become the wind turbine R & D and production of key enterprises.

Tianyuan Motor as early as 2005 based on technology that is involved in the domestic new energy field strength, to carry out large-capacity wind turbine generator development, which had been achieved 1.5-3 MW wind turbine products industry and major wind farm in the country (including offshore wind field) and stable operation. 5 MW wind turbine for the high-pressure double-fed, is currently the maximum capacity of this type of wind turbine technology reached the international advanced level. Similar foreign products still in the prototype stage trial, which showed that the Tianyuan motor wind turbine research and development have come in the forefront of the world.

At present, the company already has more large-scale domestic wind turbines and synchronize independent research supporting the large-capacity wind turbine capacity, the same time, is investing in the construction of more than 5 MW wind turbine production base, and expand R & D and production capacity, try to turn the product to invest in foreign markets.

Spanish wind power giant Google Inc. on the 10th US-Sa technology announced in Beijing opened in Jilin Province to build a wind generator produce 250 factories, plans to put into operation in mid-2011.
Song of America’s global president   Sa introduced white wind turbine factory in the city of Jilin Province, will produce the company’s top songs US Sa 2 MW G8X fan. He said that China has the world’s largest wind power generator market, the company optimistic about the prospects for China’s wind turbines market, will be early 2012 before the part in China’s offshore wind power project.
Song Sa company is headquartered in Spain, the United States, the world’s total installed capacity of the fan more than 18 million kilowatts, completed and under construction wind up to 146, is the world’s leading wind turbine manufacturers.

2010, offshore wind power generator as a prelude to the start of the concession tender officially launched. Although offshore wind power has a good wind resources, coastal network architecture is superior, the advantages of close to load centers, but its risks can not be ignored. Compared to wind farm developers, equipment manufacturers and other interested parties, the more directly bear these risks. China Guangdong Nuclear Wind Power Assistant General Manager Lu Hao said: “The offshore wind power development with high-risk, and advanced features.”

Long processing time and high cost

China’s offshore wind generators resources such as wind from the Shuiguizongyuan responsible for approving the survey, it was understood that Shuiguizongyuan very strict examination and approval. Marine environmental assessment and preparation of the report and assessment route longer time. General approval from the wind to the sea project a reasonable time was 2.5 years, longer than the land-based projects. In addition, the sea-front costs of developing wind power is wind power on land about 10 times.

Fan high price, design experience less

Although the major wind turbine manufacturers competing maritime R & D fans, but the real volume manufacturers can rarely, short-term memory in the case for less than the demand, developers keep the prices down in the little room. In fan technology, domestic manufacturers to take part of the system fan pickled I design principles to improve the offshore wind turbine reliability and availability, but may increase the device cost. Add twice the equipment cost is still in a high level.

In the design of wind farms, there are certain offshore wind turbines design institute of design experience little, competition is not sufficient to design the high cost. Design costs as the proportion of small, risk is relatively small, design experience are a major risk.

Multiple risks faced by construction

Wind from the currently available data, China’s annual 50-meter-high coastal wind speeds ≥ 8m / s wind speed of the time is 40%, ≥ 10m / s wind speed accounted for 20% of the time, showing that construction of wind on the sea have a certain impact.

It is understood that whole sea area north of the Yangtze Estuary can work for about 1/3-1/2. Generated in the Western Pacific, 29 tropical cyclones each year, of which can affect tropical cyclones north of the Yangtze Estuary annual average of 3.1, up to up to 7 years (1990), at least 1 year only. 1949-2007 years, a positive landing north of the Yangtze Estuary were 5 times (2%). Waters north of the Yangtze Estuary can be seen every year by the impact caused by the typhoon, but are less opportunities for attacks.

As the domestic manufacturers and construction unit fans lack experience in building offshore wind, the early construction, construction progress will be slower, but with the progress of the project, with the maturity of various types of work, progress will accelerate gradually. But in general there is the potential risk of contractor delays.

Evidently, not yet specialized for lifting vessels at sea fans. Construction of multi-base can be installed more domestic vessels, but can be more than 5 meters in diameter pile foundation construction of the vessel less. East China Sea Bridge, a similar scheme can, with the overall lifting capacity floating crane lifting all boats, 20 domestic, but most of lifting height is not enough. Shows that if large-scale offshore wind power development, the lack of construction of the ship’s problem is quite serious.

Wind farm operation and maintenance risks

Ease of maintenance points to reach the main by the weather, sea conditions, distance and transportation decisions. Distance offshore wind farm, the general 10-50 km offshore. In addition to fans of quality, high reliability requirements other than necessary maintenance is indispensable. Currently abroad, offshore wind generators farm maintenance overhaul the means of transport are boats and helicopters. The two modes of weather, sea conditions, a significant influence.

Availability from the fans point of view, the fans in terms of land, offshore wind turbines require higher reliability, learned from the current situation, offshore wind turbine availability is generally low.

Submarine cable is the problem can not be ignored, it is known, the domestic 35KV and 110KV submarine cable technology is more mature and complex. But can not produce 220KV submarine cable. The cost of submarine cables is 5-10 times the land, while there is the risk of anchor damage. Relatively strong coastal grid structure, but involves offshore wind farm in the local network is also weak, according to a potential reason as rife electric grid can not run the risk of full power.

Offshore wind turbine tower tube for years by the invasion of sea salt, the corrosion rate faster than the terrestrial environment, in addition to the tower tube manufacture in strict accordance with the requirements of anti-corrosion coating, regularly checked to maintain the tower tube. As the fan base is located in the seabed, seabed local shape changes in the waves, tides and currents of the role of seafloor topography in sports, on the basis of the stability of great impact, sometimes endangering the safety fan. Although fully into account in the design of ocean currents, waves, tidal effects on the basis, but fans running, the fan base should be regularly diving observations and maintenance.

Internet Risk

Countries have not developed a unified price of offshore wind power the Internet, and Internet access Dianjiaqueshi yes developers access to sources of revenue for Zhu Yao, Ming Que Tariff Ke Yi Shikaifashang Heli De Tou financing plan developed.

In addition, the coastal areas although the higher level of network structure, but involves the Internet for offshore wind power shortage still exists, grid companies involved in offshore wind power development in the responsibility should be strengthened.

NDRC Energy Research Institute, Junfeng, deputy director, said: “the development of offshore wind speed although fast, but there are many questions, our offshore wind power is not enough scientific research and technological development, technical reserves, lack of practical project operation experience, in practice they need to be addressed seriously. “

May 26 to 27, the first Sino-US Forum on Renewable Energy Industry and Sino-US Forum of advanced biofuels, opened in Beijing, “China-US renewable energy partnership” cooperation related to the official launch. At the meeting, the two sides on the future development of renewable energy the future of Sino-US cooperation in the field can be explored in great depth, and initially set to wind power and other renewable energy power generation network and the second generation of large-scale and non-food bio-fuel technology areas such as R & D key areas of future cooperation.
May 26 at the U.S. renewable energy industry, the opening ceremony of the National Development and Reform Commission deputy director, National Energy Secretary Zhang pointed out, large-scale wind turbines and solar power development on the access issues raised new challenges, and network hard problem has restricted the size of China’s wind power industry, a major obstacle to development.
Zhang expressed the hope that use of “American renewable energy partnership,” the platform, with the U.S. business and related research institutions work together to carry out wind power and other renewable energy power generation and large-scale grid energy storage technology.
U.S. Ambassador Jon Huntsman said in its statement, the United States Renewable Energy Laboratory has with China in the wind power industry has a good technical basis for cooperation, the future of renewable energy power generation projects for further cooperation.
According to the latest statistics, as of the end of 2009, the U.S. wind power installed capacity has reached 35 million kilowatts, accounting for the United States 1.8% of total electricity generation, PV power installed capacity of 11 million kilowatts. As of the end of 2009 China’s wind power generators installed capacity of 25.8 million kilowatts, accounting for about 1% of total power generation, photovoltaic power generation capacity of 750 million kilowatts. Concerned that the U.S. renewable energy accounts for the proportion of total power production was lower, demonstrating both large-scale renewable energy power generation and network technology R & D has a broad space for cooperation.
In response, State Institute of net energy gap in the forum Bai Jianhua, Deputy Chief Economist accept the “China Energy Report” interview, said that the current large-scale wind generators development in China need to optimize the power structure, increase the peaking intensity.
At the same time, through system optimization analysis, by 2020 the country’s cooperation in the development of wind power is about 102 million kilowatts scale. If the time to reach 150 million kilowatts of wind power installed capacity of the scale of need in-depth study on the optimal development plan. Bai Jianhua said, which provided for the two sides for cooperation.
Bai Jianhua that the United States in wind generators and network problems on a large scale areas of cooperation should include: a large-scale wind power grid and Absorptive planning methods and network technical standards, clean energy power ancillary services pricing and compensation Machine policy mechanisms and the only network-related technology research. “We have to study and network problems before have fully drawn on the experiences of Europe and the United States and other countries, Sino-US cooperation will further promote the introduction of foreign advanced technology.” He said.
26, the opening ceremony, the two sides signed, including aviation biofuels, natural gas, distributed energy, smart meters, the field of cellulosic ethanol, the five eight cooperation agreements between the government and enterprises. A day earlier, the second round of China-US Strategic and Economic Dialogue in Beijing. During the meeting, the collective results obtained 26, the two sides that “agreed May 26 to 27 at the first ‘American Renewable Energy Forum’, ‘Sino-US Forum of advanced biofuels,’”, thus, the formal convening of the Forum come into being.
Zhang pointed out that the recent years, with renewable energy policies and regulations and improve the market mechanism, work together to promote the rapid development of industry. Some domestic areas of wind power and photovoltaic manufacturing companies have listed overseas, the global wind power and photovoltaic manufacturing, “giant” also have to enter the Chinese renewable energy market, the favorable situation, the full benefit from the introduction and absorption of foreign advanced technology and investment policies , where renewable energy has become the most important career development experience, and will continue to carry out.
National Energy Board Chief Engineer Wu china wind turbines stressed at the forum also said that Sino-US energy environment and are faced with the challenge of climate change, developing renewable energy sources is a common choice between the two countries, bilateral energy cooperation is the greatest consensus.