高速同步无刷励磁风力发电机组概述

1、 高速同步无刷励磁风力发电机组概述High-speed Brushless Excitation Synchronous Wind Power Generating Set1/30目次 Directory一、常规的风电机组1, the routine wind power generating set .二、无刷励磁系统原理2，the principle of brushless excitation system.三、高速无刷励磁风电机组及对比3,the high-speed brushless excitation generation set and contrast.四、长星集团及机组

2、介绍4,Introduction of changxing group and generation set.五、结论5,conclusion.2/30一、常规的风电机组Kinds of Routine Wind Power Generating set高速双馈 High-speed and double-fed generator直驱永磁 Direct-drive permanent magnet generator直驱励磁 Direct- drive excitation generator中、高速永磁 Medium and High speed permanent magnet gene

3、rator其它如：高速异步、无刷双馈等 Others: high-speed asynchronous generator ,brushless and double-fed generator and so on.3/30常规风电机组图例Legends of routine wind power generating set4/30GearboxMain circuit breakerLinear coupling transformer Medium voltage switchgear Grid-side converterGenerator-side controlMain turbi

4、ne control Converter control Variable pitch controlRotor bearing Grid TransformerPermanent Synchronous generatorAC-DC-AC converter for grid connected 现有机组存在的问题：The problems of routine wind power generating set滑环、碳刷的不可靠问题及维护问题 （双馈机组、直驱电励磁机组） Slip ring and carbon brush are easy to damage永磁发电机组的退磁问题（直驱

5、、中、高速永磁机组） Permenant magnet generator is to demagnetization现有发电机自身调节能力差、低电压穿越困难的问题 The routine generator has low ability to adjust itself and its hard to cross the low voltage.5/30二、无刷励磁系统原理 The principle of brushless excitation system无刷励磁系统是无刷励磁同步发电机最核心、最关键的组成部分。 一部分用于向发电机的磁场绕组提供直流电流，以建立直流磁场，通常称之为励

6、磁功率输出部分（或称为功率单元）; 另一部分用于在正常运行或发生事故时调节励磁电流，以满足运行的需要，它包括励磁调节器、强行励磁、强行减磁或自动灭磁等，一般称为励磁控制单元。The brushless excitation is the key part of all in brushless excitation synchronous generators. It consists of two parts,power unit and excitation control unit.6/30高速同步无刷励磁系统工作原理The principle of high-speed synchro

7、nous brushless excitation sysytem.7/30GearboxWind turbine generatorRotating rectifierSynchronous generatorSilicon controlled static excitation equipmentRectifier inverterGridTransformerBrushless exciter, Rotor armature ,Non-slip ring无刷励磁系统组成 Brushless excitation system 静态直流励磁装置 Static DC excitation

8、device 交流励磁机 AC exciter 旋转整流器 Rotating rectifier8/30无刷励磁系统原理图 Brushless excitation system diagram9/30ExciterStatic excitation equipmentRotating diode rectifier briageRotorStatorSynchronous machine rotor winding静态励磁装置 Static excitation device 由于电力电子技术的发展，现在的无刷励磁同步发电机采用开关电源静止励磁装置向交流励磁机定子励磁绕组提供励磁电源。 Du

9、e to the development of power and electronic technology, the brushless excitation synchronous generator with static excitation device switch power supply unit to AC exciter stator field excitation winding provides excitation source.10/30交流励磁机 AC exciter 采用旋转电枢式同步发电机，其功率、电压及功率因数取决于最大励磁电流及其相应的励磁电压(强励要

10、求)和整流回路的接线方式。而频率可任意选择，频率越高，时间常数越小，反应快速性好。但频率决定于转速、极数和发电机使用特性的要求。 With rotating armature synchronous generator, its power, voltage and power factor depends on the maximum excitation current and the corresponding excitation voltage (strong Lai requirements) and rectifier circuit wiring. And the freque

11、ncy can be arbitrary choice, the higher the frequency, time constant of the smaller, fast response is good. However, the frequency determined by speed, number of poles and generator use of feature requests. 11/30 交流励磁机的磁场激磁可由外电源供给，但在众多的大中型无刷同步发电机中为了提高运行的可靠性，不受外电源的影响往往由静态励磁装置供给。 AC exciter magnetizin

12、g the magnetic field may be outside the power supply, but in a large number of medium-sized brushless synchronous generator in order to improve the reliability of operation without external power supply is often affected by the static excitation equipment supply. 12/30旋转整流器 Rotating rectifier 旋转整流器是

13、指由硅整流元件连同散热器，有时还包括相应的整流桥。大多采用三相全波整流桥。旋转整流器是无刷励磁系统中最重要的部分，必须保证其工作在正常状态。 Rotating rectifier refers to silicon rectifier component, together with the radiator, and sometimes also including the corresponding rectifier bridge. They use a three-phase full-wave rectifier bridge. Rotating rectifier is a bru

14、shless excitation system, the most important part, must ensure that their work in the normal state. 13/30三、高速无刷励磁风力发电机组及对比High-speed brushless excitation wind turbine and contrast风力机带动励磁发电机旋转时，与主轴一起旋转的励磁机转子绕组发出三相交流电，该三相交流电经旋转整流桥整流后供给同步发电机转子绕组励磁电流。 Wind turbine driven generator exciter rotates with t

15、he spindle rotating with the exciter rotor windings of the three-phase alternating current issue of the three-phase alternating current rectified by the rotating rectifier bridge the supply of synchronous generator rotor winding excitation current.14/30调节交流发电机定子励磁绕组的励磁电流，就可使励磁发电机的转子所发出的三相交流电压得到调整，从而

16、改变同步发电机励磁绕组的励磁电流。Adjust alternator exciter stator winding excitation current, you can make the rotor excitation generator issued by the three-phase AC voltage to be adjusted, thereby changing the synchronous generator field winding excitation current.15/30无刷励磁发电机的整流逆变图例Brushless excitation generator

17、 rectifier inverter Legend16/30Brushless excitation generatorExcitation power supplyFull power converter高速同步无刷励磁系统的主要特点和优势 The main features and advantages of High-speed synchronous brushless excitation system高可靠性。同步发电机在火电和水电系统中占有绝对的主流地位，它在电压调节和工作效率以及可靠性等方面具有其他发电机系统无法相比的稳定性和经济性。具有同等功率下体积小、效率高和安装方便的特

18、点。由于无滑环问题，维护工作量极少。High reliability. Synchronous generators in thermal power and hydropower systems in the possession of the absolute mainstream, its voltage regulation and efficiency, and reliability and other aspects, can not be compared to the other generator system stability and economy. Has the

19、same power under the small, efficient and easy installation features. In the absence of slip-ring problems, the maintenance workload of the few.17/30风能利用范围宽。由于采用全功率变流技术，理论上发电机转速可从0到额定转速变化，经过优化设计后，可提高齿轮箱效率，增大调速范围，最大限度利用风能。A wide range of wind energy utilization. As a result of the whole power convers

20、ion technology, in theory, generator speed can be changed from 0 to rated speed, optimized designs can improve the efficiency of gear box, increasing the speed range, maximum use of wind energy.18/30高电能质量。采用全功率逆变的电源供电技术，可以在很大程度上提高供电电源的质量。变流装置的使用将发电机组和电网的隔离，可以有更多的方案和方法实现低电压穿越，保证整体电网的安全，并网也很方便。 High p

21、ower quality. With full power inverter power supply technology that can significantly improve the quality of power supply. Variable flow control devices in use will generator sets and power isolation, can have more programs and methods to achieve low-voltage crossing to ensure the safety of the whol

22、e grid, and networks are very convenient.19/30全功率逆变方案的其它优势：如快速的响应控制速度（毫秒级）和灵活的控制能力。 The other advantages of full power inverter program : fast response, such as control of speed (millisecond level) and flexible control.20/30可维护性Maintainab-ility风速利用范围Range of wind using电网低电压穿越能力Ability of acrossing t

23、o low-voltage power grid发电机稳定性 Stability of Generator 双馈发电Double-fed差Poor窄Narrow差Poor一般General直驱永磁Direct-drive permenant mangnet 无维护Non-maintenance 宽Wide好Good差Poor中速永磁Medium-speed permanent magnet一般General宽Wide好Good差Poor高速永磁High-speed permanent magnet一般General宽Wide好Good差Poor高速无刷励磁High-speed brushles

24、s excitation一般维护（齿轮箱）General maintenance (gear box)宽Wide很好Better好Good21/30 各种发电机组对比表The Contrast Table Of All Kinds Of Generators四、长星集团及机组介绍山东长星集团坐落于宋代名相范仲淹故里山东省邹平县，是一家集大型成套风力发电设备、机械设备生产于一体的大型企业集团。公司占地200多万平方米，职工5000余人，高科技技术人才1800人。 Shandong Changxing Group is located in the hometown of famous Prime

25、 Minister Mr.Fan Zhongyan of Song Dynasty-Zouping Coutry of Shandong. Its a large group combined with production, operation and management of complete set of wind power generating equipments and machinery and equipment manufacturing.It covers an area of 2 million with over 5,000 staff members and 1,

26、500 high technology personnel.公司目标：振兴民族装备制造业、发展绿色能源、打造中国风电城。 Company Goals： Promoting National equipment manufacturing industry , Developing green energy, Become the center of Chinese Wind Power.22/30发展长星 奉献社会 以人为本 科技创新Developing Changxing Contributing to society People foremost Technological innova

27、tion23/30长 星 总 部The office of Changxing Group中 国 风 电 城The wind power city of China24/30长星850KW高速无刷励磁机组已大批量生产The 850KW wind power generating set has been produced in batch quantities.25/30长星2MW高速无刷励磁机组已正式下线投产 目前正在研发3MW 5MW 大型风电机组The 2MW high-speed brushless excitation set has been produced in batch q

28、uantities.Now we are reseraching and developing 3MW and 5MW wind power sets.26/30公司20万KW风场已成功并网发电200MW wind farm of Changxing has been successfull grid-connected.畅 想 未 来 The Future长星集团一直致力于“发展长星、奉献社会”的企业文化理念，愿同有志之士一起共同致力于新能源领域的开发和建设，让世界每个有风的角落享受到风资源带来的美好，实现 “让风能带动世界、舞动全球” 的构想。Changxing Group has always been dedicated to the concept of corporate culture that isdevelopingChangxing ,contributing to socitoy.And we d like to reserching and developing with everyone who has the same goals in the new energy industry. Wed like to enjoy the happiness of wind power with