風力發(fā)電機英文介紹

1、風力發(fā)電機組Wind turbine generator 石家莊鐵道大學石家莊鐵道大學 機械工程學院機械工程學院姜姜 凱凱 之之 KEVIN學號學號20151253Main contents1.Application 應用2.Effcieney and the process of its usage影響和使用步驟3.What were the issues dealt with while it was being built?它建造時遇到的問題？4.Benefits and the negative effects on the users對使用者好處和弊端5.How did it or

2、will it change peoples lives and the world? 它怎么改變?nèi)藗兩詈褪澜?？Background and SignificanceWith the consumption of fossilfuels and their serious impact onthe environment,the wind energywith the advantages of clean andcan be recycled for use is growing importance to many countries andthey are actively devel

3、oping andutilizing its wind resource, China isno exception. The manufacture and maintenance of wind turbines will also become an emerging manufacturing industry in the future. The applicability of small wind turbines is very broad in China. Independent and efficient small windturbine power generatio

4、n is realistic for Chinas rural wind energy resource-rich areas, or national electricity grid areas not covered. Introduction輪轂齒輪箱油冷卻器發(fā)電機變槳驅(qū)動旋轉(zhuǎn)罩機艙低速軸熱交換器控制箱旋轉(zhuǎn)接頭支撐軸承偏航驅(qū)動機艙座通風隔離減震Structure diagram of wind turbine一、機組的總體結(jié)構一、機組的總體結(jié)構First,the overall structure of the unitIntroduction控 制 系 統(tǒng)風輪wind wheel增速

5、器 speed increaser發(fā)電機 dynamo主繼電器main relay 主開關master switch熔斷器Fuse 變壓器transformer晶閘管電網(wǎng)electrified wire netting風wind變槳Pitch風速轉(zhuǎn)速并網(wǎng)功率無功補償風wind定槳：定槳：1.5-2.51.5-2.5葉尖擾流器起脫網(wǎng)停機氣動剎車，一般采用雙速發(fā)電機來提高效率。葉尖擾流器起脫網(wǎng)停機氣動剎車，一般采用雙速發(fā)電機來提高效率。變槳：隨風速改變攻角，超過額定風速保持額定功率。變槳：隨風速改變攻角，超過額定風速保持額定功率。設計風輪轉(zhuǎn)速：設計風輪轉(zhuǎn)速：20-30r/min20-30r/min

6、，通過增速器與發(fā)電機匹配。，通過增速器與發(fā)電機匹配。采用晶閘管軟切入并網(wǎng)，并網(wǎng)容易，擾動小。采用晶閘管軟切入并網(wǎng)，并網(wǎng)容易，擾動小。含微處理器的控制系統(tǒng)。含微處理器的控制系統(tǒng)。 Introduction二、風力發(fā)電機組的控制技術二、風力發(fā)電機組的控制技術Two, wind turbine control technologyFixed pitch stall type units to solve the problems of grid Fixed pitch stall type units to solve the problems of grid connected wind turb

7、ines and the running safety and reliability connected wind turbines and the running safety and reliability problems, the soft cut in technology, aerodynamic braking problems, the soft cut in technology, aerodynamic braking technology, yaw and pitch angle and automatic untwisting technology. technolo

8、gy, yaw and pitch angle and automatic untwisting technology. The power frequency fixed decision speed, simplify the control and The power frequency fixed decision speed, simplify the control and servo drive system.servo drive system.The full blade variable pitch type unit can be started speed The fu

9、ll blade variable pitch type unit can be started speed control, power control can be connected to the grid. Electro-control, power control can be connected to the grid. Electro-hydraulic servo mechanism and closed-loop variable pitch control to hydraulic servo mechanism and closed-loop variable pitc

10、h control to improve the efficiency of the unit.improve the efficiency of the unit.The transmission unit type VSCF technology with variable speed The transmission unit type VSCF technology with variable speed wind turbine generator based on wind speed. According to the wind turbine generator based o

11、n wind speed. According to the control signal, below the rated wind speed tracking optimal power control signal, below the rated wind speed tracking optimal power curve is higher than the rated wind speed flexible rated power curve is higher than the rated wind speed flexible rated power output is i

12、mproved. To ensure the high harmonics of the power grid, output is improved. To ensure the high harmonics of the power grid, improve power factor, high efficiency and high quality power supply.improve power factor, high efficiency and high quality power supply. Introduction三、風力發(fā)電機組的控制系統(tǒng)結(jié)構三、風力發(fā)電機組的控制

13、系統(tǒng)結(jié)構Three, wind turbine control system structure用戶界面 user interface輸入用戶指令，變更參數(shù)顯示系統(tǒng)運行狀態(tài)、數(shù)據(jù)及 故障狀況發(fā)電機控制Generator control軟并網(wǎng)變頻器勵磁調(diào)節(jié)主控制器 main control unit運行監(jiān)控，機組起/停電網(wǎng)、風況監(jiān)測無功補償Static Var Compensator根據(jù)無功功率信號分組切入或切出補償電容變距系統(tǒng)Variable pitch system轉(zhuǎn)速控制功率控制液壓系統(tǒng)hydraulic pressure system剎車機構壓力保持變距機構壓力保持制動系統(tǒng)brake a

14、ssembly機械剎車機構氣動剎車機構調(diào)向系統(tǒng)Modulation system偏航自動解除電纜纏繞What were the issues dealt with while it was being built? The wind has low density (energy density is very small), unstable, weakness of large regional differences. The development of the main problems of wind power wind power development is a system

15、 engineering, involving wind energy resources, wind power equipment manufacturing and wind farm operation, power grid construction and other fields.Benefits effects Wind energy facilities are increasingly progress,mass production toreduce costs, in theappropriate location,wind power costs are lowert

16、han the generator.Wind energy facilities were not three-dimensional facilities, protect land and ecology. Wind power is arenewable energy, isenvironmentally friendly.negative effects Wind power requires a lot of land to build wind farms, can produce more energy.When wind power is generated, wind tur

17、bines emit huge noise, so they have to find some empty places to build.In some areas, wind power is economically inadequate: wind power in many areas is intermittentNow wind power is still immature, there is considerable room for development.How did it change peoples lives and the world First of all

18、, the project will affect the local ecological environment, such as the destruction of vegetation, landscape change, resulting in soil erosion. Secondly, the project land may cause social problems, so the resettlement should also be considered. Thirdly, the project construction may cause influence on the local cultural landscape. Wind energy is one of the most active renewable energy, its essence is the transformation of solar energy, thus it can be considered to be inex