Wind Turbines Manufacturer in China

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

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.

8, American Wind Energy Association said in a report in the government, society and business efforts, the United States in the development of wind energy in recent years has achieved significant results, wind energy has become the major clean energy.
Data provided by the association last year, wind power generation in American history is the fastest growing of the year. During the year, the U.S. wind power generation facilities to produce new 10 000-megawatt electricity, enough to 2.4 million families live electricity. America now has a total of more than 200 wind power generation facilities with a total generating capacity of 35,000 MW. In the development of wind power, Iowa State and Texas in the U.S. states of impressive.

Reported that the benefits of wind power over: First of all, wind power generation to reduce the use of fossil fuels, contribute to greenhouse gas emissions; Secondly, since the wind turbines to reduce the traditional power of water each year for the United States save a lot of water resources; third , wind power provides more employment opportunities, the current development of the nation in wind energy at about 8.5 million people, all over the states.

Report pointed out that with the further promotion of wind energy, the federal government the need for the development of uniform standards for wind energy to replace the current standard states went their own ways.

Wind turbine bearings can be divided into three categories, namely: yaw bearings, pitch bearings, transmission bearings (main shaft and gearbox bearings). Yaw bearings installed in the tower’s junction with the cockpit, pitch bearings installed in each blade root and hub joints. Each wind turbine equipment bearings and a set of three pitch yaw bearing (part of the megawatt-class wind power generator for the following non-adjustable blades, can not pitch bearing).
A code method
Wind turbine yaw, pitch bearings, code-named methods used JB/T10471-2004 method in the code wheel bearing, but in wind turbine yaw, pitch bearings double row appears in four point contact ball wheel bearings This structure bearing the code is not provided in JB/T10471-2004, therefore, an increase of double the standard four-point contact ball bearing turntable code. As the single-row four point contact ball bearing turntable with a 01 structure type code that, while the structure type code 02 that is double reducer ball turntable bearing structure, so that the provisions of 03-row four point contact ball bearing turntable structure.
2 Technical Requirements
2.1 Materials
This standard provides yaw, pitch bearing ring of material selection 42CrMo, treatment with the overall quenching, after quenching hardness 229HB-269HB, part roller surface quenching, quenching hardness of 55HRC-62HRC. As the wind turbine yaw, pitch bearings complicated by force, and bearing to withstand the shock and vibration relatively large, therefore, required to withstand the impact of both bearing and can withstand a greater load. Host life requirements wind turbines 20 years, bearing the cost of installation, so the required yaw, pitch bearing life have reached 20 years. Bearing this matrix hardness 229HB-269HB, able to withstand the impact without the risk of plastic deformation, while parts of the surface roller quenching hardness reached 55HRC-62HRC, increase the contact fatigue life, in order to ensure long bearing life requirements.
Low-temperature impact energy of 2.2
The standard yaw, pitch wheel bearing rings at low temperature impact energy requirements: -20 ℃ Akv not less than 27J, cold under the Akv value can be determined in consultation with users. Wind generators may work in very cold areas, the ambient temperature is about as low as -40 bar, bearing the working temperature is about -20 ~ C, bearing at low temperature must be able to withstand large impact load, therefore, required bearing rings The material in the quenched and low temperature impact energy tests must be done, taking on the part of the bearing rings made of sample or the same performance and with rings under the same conditions of sample treatment, in the -20 ~ C environment do impact function test.
2.3 Bearing Gear
As the wind generators bearing drive accuracy is not high, and the larger ring gear diameter, gear modulus larger, and consequently, the accuracy of the general level of gear required by GB/T10095.2—2001 of 9 or 10. However, due to work under the pinion and ring gear bearings between the impact, therefore, bearing ring gear tooth surface should be hardened, small gear tooth surface hardness generally 60HRC, taking into account other life design, a large gear tooth surface quenching hardness requirements not be less than 45HRC.

Into the China Pavilion, wonderful everywhere, always praise sounded, especially the third stage “Imagine the Future”, the audience’s enthusiastic interaction with the China Pavilion memorable.
Follow the orderly flow of people moving forward, walk 49 meters to 100 meters of the sound amplification Department giant optical system of the “painting”, as well as Ming Qiu English version of a national treasure, “Qingming Festival”, is heard the shutter ” Kacha Kacha “sound and an amazing piece of sound; walk 41 meters Office, and replace electric car started” riding “tour, 10 minutes, we crossed the winding up and down the bridge of time for thousands of years; in Imagine kids paintings city of the future formation of channels, we went to 33 meters – a low-carbon action Pavilion. Originally thought that the display area will be very boring, but look and found I was wrong. The first is a series of shocking people rushing toward the data, and then appear in a mist of green technology gives hope, then, is a row of slim wind turbine, the oil extracted from algae in equipment, swaying up and down The solar template … … the audience was very active movement of the sensor have to squeeze onto the wave, driven wind power, solar light template turn.
There is also a gathering place for visitors is the point of the electric vehicle development. Both small size electric vehicles, saving the steering wheel are only 3 / 5 round. Instructors are confident to say that petrol cars are not environmentally friendly electric vehicles in the future is dominated by a quarter of an hour can be sufficient good power, speed 120 km … … only 10 minutes, 34 dial around over the audience, people keep asking: How much is one? When listing? It seems to be visiting the automobile market. Knowing audience bursts of laughter from time to time came. Yes ah, the future of urban life can not do without basic necessities, no wonder people are so concerned about.

Small wind turbines have been in constant progress in technology, but rich wind energy resources around the face of different natural reality, and how to ensure sustainable and stable small power supply fan, solve the new energy “is dependent on” the problem has been Hummer  technology research focus. Hummingbird’s products not only satisfy users of electricity 24 hours a day, all year round and stable power supply, but also reduce costs, bring real benefits to users.

Hummer  wind and solar system since the market after the critically acclaimed and widely applied to street lighting, landscape lighting, traffic control, large-scale advertising, household electricity and other fields, the completion of the complementary system of natural resources; has a large market needs. However, due to environmental factors more serious, in the products on the stability and efficiency even under full effort,Hummer wind turbines rely on technology to make the brand!

China to develop wind power is clean energy sources. At present, the installed capacity of wind power in Inner Mongolia has reached 5 million kilowatts, ranking first in the country. Meteorological data show that wind energy resources in Inner technology development capacity of 150 million kilowatts, accounting for land-based wind energy resource reserves, 50%, Huaneng, Datang, State Power, God, more than a dozen large Chinese energy companies are investing in the construction of wind turbines in Inner field, have been built in Inner Mongolia Huitengxile, Hexigten other large wind farms. Actual operating data show that the average utilization of Inner Mongolia Wind Power Equipment hours up to 2678 hours, reached the country and the world’s leading

Recently, in Denmark in seven European countries along the coast, more than 800 giant wind turbines in the rotation — use of strong winds for power generation, enough power for the hundreds of thousands of families.
In addition, China’s first offshore wind farm near Shanghai — Enterprise is also a 102-megawatt line this month, while many more wind farms in preparation.
However, despite efforts for a decade, but the United States in an offshore wind  turbines are not safe as … …
Although there are hundreds of European coastal wind turbines in the rotation, but the U.S. wind power industry has just begun. This week, Obama announced a government decision to the sea — building in Massachusetts Cape Cod wind project — which could push the first U.S. offshore wind farm project completion.
Advocates:
We need power
“Cape Cod wind farm construction is essential — we need power.” U.S. wind power industry advocates say. Now, in the U.S. East Coast and Great Lakes in shallow waters, has been planned at least six offshore wind projects.
According to the American Wind Energy Association said the United States at the design stage of these projects if completed as planned, will produce about 2,500 megawatts of electricity, the equivalent of two medium-sized nuclear power plant generating capacity. Cape Cod wind energy project in Nantucket Island, the Gulf will be installed 130 turbines, the cost may be more than one billion U.S. dollars.
The project’s developers and advocates said the sea has important advantages of wind power projects: land-sea breeze and the lake wind than the wind stronger, more stable and more reliable; offshore turbines can be installed from the coastal population in the vicinity of power shortage , eliminating the need for land lines; if far away enough to install offshore turbines, would not significantly change the landscape.
Opponents:
Land has yet to be developed
However, opponents argue that wind power industry are too expensive. Management of uncertainty makes offshore wind development has become the cause of the United States arbitrariness. In the harsh environment construction and maintenance of marine turbines will lead to high costs.
It is reported that the complete installation of offshore wind energy system price is estimated at 4,600 U.S. dollars per kilowatt, close to twice the terrestrial system. “The United States is not the reason offshore wind farm and the land there are many places to be developed a great relationship.” Energy analyst Mountain Mujie Fei said, “you have not developed in North Dakota, when, why to cost more expensive sea go? ”
However, despite the Cape Cod wind energy project in the struggle was hard, but other parts of the United States has emerged a small but identified wind energy industry. Also, last Wednesday, Obama also called for the government, want to build wind energy projects in the Delaware coast companies to provide a formal Letter of Intent program. U.S. Offshore Wind Farm project is completed within reach.

American Wind Energy Association recently disclosed in its annual report, the United States in 2009 installed 5700 wind turbine, the new installed capacity of 10 million kilowatts, which makes the current U.S. total installed wind power capacity has reached 35 million kilowatts, to maintain the world’s first wind power the status of the country.
It is reported that in U.S. states, the fastest growing wind power in Texas, New installed capacity of 9.405 million kilowatts last year, followed by Iowa and California, the new installed capacity of 3.679 million kilowatts, respectively and 2.723 million kilowatts.
Over the past 5 years, U.S. wind power capacity to maintain a 39% annual growth rate, currently 8.5 million people worked in the wind power industry. Current wind turbines in the U.S. reached 1.8% in the proportion, by the end of 2008 was 1.2%, American Wind Energy Association expects that number to more than 2%.