Wind Turbines Manufacturer in China

Netherlands, Friesland recently announced a large-scale wind generators development plan, expected 2020 new 200 large wind turbines. By then, half of the families Friesland electricity will come from wind power generator.

It is reported that 200 new wind turbines were as high as 80 to 120 meters, a total cost of one billion euros. Northern part of Friesland in the Netherlands, near the North Sea, is rich in wind resources.

Netherlands Central Bureau of Statistics show that as at the end of 2008, the Dutch land and sea total installed wind power capacity 2216 MW, 470 MW more than the previous year.

“The average day to power more than 20 degrees, can not take the electricity stored in batteries in reserve.” Fan Yongguang said, as long as there is wind, which wind turbines can generate electricity. According to the old Fan explained that he made it home wind turbine units, including the propeller blade, generator, battery, frame and other parts. Generator and the propeller blade in the upper bracket, the connector is designed to connect the generator of a rudder, also known as tail, in the upper bracket has a horizontal axis of rotation. No matter which direction the wind to pass through the device to adjust the fan direction. wind generators to  generate electric charge through an automatic variable inverse controller, the delivery to the four 12-volt batteries connected together on the power stored up.

Conversation, the reporter learned that Fan Yongguang only junior high school education, but has been very interested in electrical appliances. He said he used the generator on the vehicle structure, principles are well known. In 2005, the son of a wind power equipment company to do electrical work, always listening to his son that wind power, a long time his whim: to are neither invented a wind turbine? Old Fan said, speaking of wind generator is relatively simple principle, “Children playing in the paper windmill wind turbine is a prototype, in its shaft to put on a very micro-generator can generate electricity.” It sounds simple, can really move hands, the old Van is really done much. In order to do this “small power plant”, the old bus to Qingdao Fan sitting Bookstore, Jinan Xinhua Bookstore to buy a lot of information, also please help her son with calculated data. That period of time, at home everywhere is the line package, the rotor and other components. Fan old man in his 50s, with reading glasses do not turn white not Black Lands data, drawing drawings, by calculator.

Reckon the data, drawing the drawings, the old to the Jiulong Town Kuangjia Ling Fan, a foundry, please someone help cast the case. Bought copper wire, into a circle around the line package.

Hardest to do is to propeller blade. “I call it ‘fan wings’,” laughed the old Fan, this thing only to have a certain strength, light weight but also special. What to do? Steel, aluminum, PVC sheet, etc. 10 11 he tried several materials, the effect is not ideal. Fan occasionally hear the old material to make armor coated with glue hardens, the various indicators is to meet the requirements, you can do “wings.” The more you ask, the old Fan from Huangdao a friend out there to this material, made of a special “wings.”

“Normally, to do such a wind generator needs three or four thousand dollars on it, but because he repeatedly tried to buy a wide range of accessories, the cost is several times higher than normal. To make this generator, Ins and Outs almost spent nearly two million. ”

“Wind generators to generate electricity the same as with normal use of electricity,” Fan Yongguang readily open the side of the TV said, “This small wind turbine production since 2006 and the installation was successful, to use more than three years now, has been no problems, I think can be used at least 20 years. home appliances in addition to air conditioning, the electricity is to supply it. former home, 100 yuan per month tariff, now saves.

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. “

Wind power generator can be an excellent complement to a solar power system. Here in almost all the places, when the sun isn’t shining, the wind is usually blowing. wind turbine generator  is especially helpful in winter to capture both the ferocious and gentle mountain winds during the times of least sunlight power use. With this Wind -solar power hybrid system the wind and solar energy can be used in the whole year.
Hummer also provides such kind of solutions, our wind-solar hybrid system matched with wind-solar hybrid system will take more advantage of solar.
Hereafter are some technical advantages of hummer wind-solar hybrid inverter, also if you are interested in this kind of system you can contact us for detail.
That system not only can seek the wind direction automatically, but also can monitor the running condition, rotating speed, wind generator temperature, wind speed, wind direction, etc. At the same time all the parameters acquired by the monitor system will be sent to the control center. When the wind generator runs abnormally, the control center will turn the blades out of wind and turn them back into the wind when the abnormal conditions released.

Humme H8.0-10000W wind turbine generator equipment-has the following features :

A.  with high output efficiency wind alternator generator ,which has four patented technologies .

B .The blades are made by the precise ejection model technology ,which is alary and high-efficiency . So hummer wind generators equipmetn 10kw can start up with a low wind speed and use the wind power more efficiently .

Compared with the traditional materials ,this new type adopts glass fiber, which can reduce the weight and enhance resistant corrosion .

C. Auto-defensive function for over charging ,over discharging ,over speed ,over loading ,short circuit etc .

D. With the help of hummer wind-solar wind turbine ,10kw wind energy equipment can be connected to solar panel within 5000w .

E. With hummer specific grid-tied inverter system , 10kw wind energy equipment can connect with local grid .

Specification for hummer wind turbines equipmetn —H8.0-10000W

The principle of wind power is driven by wind turbine blades rotate, and then through the growth machine will improve the speed of rotation, to induce wind generators. According to the current of the windmill is about three meters per second wind speed (wind level), it can start generating electricity.
Wind power is the world form a boom for wind power without fuel problems, it does not produce radiation or air pollution.
Wind power in Finland, Denmark and other countries is very popular; western China is also strongly advocated. Efficient small-scale wind power generators system, but it is not only composed by a generator head, but a certain technology in the small systems: wind turbine + charger + digital inverter. Wind turbine by the nose, swivel, rear wing, leaf form. Each part of the very important functions of various parts: leaves used to receive through the nose into the wind power; tail so that leaves always opposite to the direction of the wind to get the most out of the wind; swivel head can rotate in order to achieve flexibility tail to adjust the direction of the function; head of the rotor is permanent magnet, the stator windings cutting magnetic lines to produce electricity.
Fluctuating wind power generation due to wind, so the output is 13 ~ 25V AC change, subject to the charger rectifier, battery charger store again, so that electricity generated by wind turbines into chemical energy. Then protect the inverter circuit, the battery inside the AC 220V chemical energy into electricity, can guarantee the stability of use.
Usually people think that wind power generator wind power entirely by the decision, always wanted to buy a bigger wind turbine, which is not correct. The current to the battery charging wind turbines only, the energy stored by the battery up, people eventually use electric power, size and battery size have a closer relationship. Power depends on the size of even the size of wind, not just the size of the power head. On the mainland, a small wind turbine will be more appropriate than large. Because it is easier to drive and a small amount of wind power generation, continuous small wind, strong wind better than the moment a large supply of energy. When no wind it can also be caused by normal use of wind power, that is a 200W wind turbine can also be a large battery and inverter with the use, access to 500W or 1000W power out even more.
Use of wind generators, wind energy is pouring into our family used to the standard electricity, the savings level is obvious, a family only 20 yuan a year of electricity cost of battery fluid. And now the wind turbine than a few years ago have greatly improved the performance, was only used in a few remote areas, wind generators connected directly to power a 15W light bulb, a clearly a dark and often damage the bulb. And now because of technical progress, the use of advanced chargers, inverters, wind power become  scientific and technological content of the small systems, and can under certain conditions Daiti normal market Dian. Mountain to the system can not be a perennial money-lights; highway signs used it to do the night lights; mountain children can study up under fluorescent lights; urban high-rise roof, wind turbine can also be used, which not only save but also real Green Power. Domestic wind generators, not only to prevent blackouts, but also increase the zest for life. In the tourism area, border, school, military and even behind the mountain, wind turbine procurement is becoming a hot one. Radio enthusiasts could use their own wind power generation technology in the service for the mountain people, so that people watch television and lighting synchronized with the city, but also make their own enrichment work.

Currently, wind power is in the process of industrialization. U.S. Department of Energy released the information (see Figure 1), United States, the total wind power installed capacity of 2.47 MW from 1999 to 2009 of 34.86 MW. In 2007 to the end of 2009 these 3-year growth was especially fast, its new capacity of nearly 2000 to 2006, 7 years to 3 times the additional capacity.

Development of wind energy industry is also available from the number of patent applications discerned. For example, the World Intellectual Property Organization (WIPO) data (see Figure 2), over the years the number of patent applications PCT from 2001 to 2006 remained at 100 to 200 each year between the 2007, 2008 and 2009 applications are respectively 258, 388 and 515.

Since 2002, the U.S. patent issued over 800 wind turbine parts. Denmark’s Vestas Wind Systems (VESTASWindSystems), Germany  this (AloysWobben), Japan’s Mitsubishi Heavy Industries (MitsubishiHeavyIndustries, LTD) and the U.S. General Electric (GeneralElectric) in control of more than wind turbines patent. GE’s wind turbine in which nearly 150 patents, came out top. General Electric is the largest U.S. supplier of wind turbines. According to the American Wind Energy Association estimates that in 2008 the U.S. General Electric wind turbines account for 43% of the market, and has more than 10 companies through licensing its patented technology.

However, GE’s market dominance by Mitsubishi Heavy Industries challenges. Mitsubishi Heavy Industries in 2007, announced its 2.4 MW wind turbine units in the United States has received 411 orders. Simply order the nation to close by the end of 2009 the total installed capacity of 3 times. General Electric in early 2008 in the United States International Trade Commission (ITC) launched 337 proceedings, sued Mitsubishi for infringement of common wind turbine U.S. patent US5, 083,039 (‘039 patent); US6, 921,985 (‘985 patent); and US7 , 321,221 (‘211 patent).

International Trade Commission in March 2008 filing, investigation. August 2009, the International Trade Commission administrative judge initially determined that Mitsubishi Heavy Industries and ‘985 ‘039 patent infringement, but did not infringe ‘211 patent. However, the International Trade Commission’s unfair import investigation office (OfficeofUnfairImportInvestigations) Quedui administrative judge’s decision to challenge that Mitsubishi Heavy Industries, did not infringe GE’s patents, because General Electric is not in the U.S. implementation of its patented technologies, which do not meet According to Section 337 exclusion Mitsubishi wind generators  requirements.

January 8, 2010, the International Trade Commission’s six members of the Mitsubishi Heavy Industries of determination after review of the wind turbine does not infringe GE’s patents, without violating Section 337, so as to Mitsubishi 2.4 megawatt wind generators into the U.S. market exclusion a roadblock.
However, General Electric, do not be to hand over the market, claiming to appeal the ruling of the International Trade Commission, and on February 11, 2010 Federal District Court in Texas alleging infringement of its U.S. patents Mitsubishi Heavy Industries, US6, 879,055 and US7, 629,705. In this regard, Mitsubishi Heavy Industries is not weakness, in the May 20, 2010 in Arkansas federal court lawsuit against General Electric, Western antitrust violations, abuse of patent litigation against competitors, threatening wind turbine users. On the same day, Mitsubishi Heavy Industries is also in Central Florida to the Federal Court infringement lawsuit against General Electric, U.S. Patent US7, 452,185.
U.S. wind energy market is growing rapidly. According to the International Trade Commission in 2009 published results of a survey, the United States and wind energy-related imports increased from 356 million U.S. dollars in 2003 soared to 2.5 billion in 2009. 2009, the federal government to stimulate the economy, “U.S. recovery and Reinvestment Act” (TheAmericanRecoveryandReinvestmentAct) decided to clean energy funding more than 100 billion dollars. Trade volume is expected in the future will be more and more small wind turbines , wind energy giant battle between the patent will be intensified.

June 7, the World Bank released its latest research results, “China’s large-scale offshore wind and onshore wind power base in the challenge: Implementation Guide”, which suggestions for offshore wind power development in China specialized in supporting laws and regulations promulgated to meet the Chinese Future offshore wind power development.
In addition, the report believes that China’s construction of offshore wind power is essential, and recommended that the intertidal zone in China for wind power generator development pilot.
In recent years, China’s achievements in the development of wind power significantly more than expected and planned targets, by 2009, China ranked third in the world wind power installed capacity, while the speed of market growth is expected to rank first in the world in the next few years 1.
Bureau of Energy Director of the World Bank of China Li Zhuo Shi said: “China has achieved remarkable success, to expand the scale of the strategy is correct.”
However, the rapid development of wind power, more room for development of future offshore wind power are facing many of the potential problems.
Report, have developed or are developing for offshore wind generators countries, their development of laws and regulations in many have flaws, these problems is particularly evident in the project approvals, as many cases, existing laws and regulations is Zhendui as oil, gas or shipping requirements, these laws are used offshore wind power development activities on the approval, would seriously hinder the development of offshore wind power, and to examination and approval procedures are very complicated, and with uncertainty, thereby increasing the project cost , resulting in time delays and wind turbines ultimately increase the risk of failure.
China in the development of offshore wind power will be faced with such laws and regulations during the defects, the report that the Chinese government should establish an appropriate set of laws and regulations, dedicated to offshore wind power development.
According to the experience of other countries, laws and regulations, volatility, complexity, and excessive restraint, will result in harm to the confidence of investors; as in the Netherlands, to encourage wavering policies, has become the country’s wind power market development, a major problem.
The other essential for offshore wind power online, the report that should be considered approved the construction of demonstration projects to provide free Internet access, and new specialized agency responsible for construction of offshore wind power, or expansion of existing business network, offshore wind power is responsible for the Internet.
In addition, because the inter-tidal wind farm development costs may be lower than in the deep waters offshore wind power, reported that China wants to become a pioneer in the need for learning and innovation in practice, starting the relevant experiments, and demonstration projects have put fully estimated.
At present, the Chinese Government plans to wind power resources in the domestic land-based wind power-rich areas to expand the scale of the intertidal zone of wind power to carry out pilot projects, and start in deep water areas offshore wind farm development.

With study and practice the scientific concept of development activity and to adjust the power structure has become the consensus in the community, wind power as clean energy, in China’s future energy development and strategic layout was given high expectations. At present, the cause of rapid development of wind power, wind turbines installed capacity increased to double present situation for several years. But in this process there are many problems, such as wind power and network issues, standards issues of wind power, wind power equipment, the localization of wind power construction cost control and so on.

For further research on the development of wind generators problems, the typical exchange of experience in wind power development, the promotion of wind power (market, information, reviews) industry, scientific development, China Wind Power Summit Organizing Committee decided in June 2010 5 held in Beijing Guohong of China Wind Power Industry Development Forum.

The forum is organized by China Electrotechnical Society, “Electric China” magazine, jointly organized by the “Electric China,” Journal of Industrial Development Strategy Research Center of the contractor.

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.