永磁发电机外文翻译

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1、 本科生毕业设计（论文）文献翻译 设计（论文）题 目 ： 车用永磁发电机电子稳压器（驱动和保护电路设计） 分 院： 专业班级： 姓 名： 学 号： 指导教师： 教师职称： 完成日期： 1 毕 业 设 计（论 文）文 献 翻译 1. 所译外文资料： The Promising Future of Permanent Magnet Generator SHI Li-wei1, ZHANG Xue-yi1, GENG Song-liang1, WANG Ya-lin1, LI Ai-jun1， LI Xian-wen2 Abstract After the introduction of the l

2、ate automobile generator, the outstanding advantage of permanent magnet generator is presented systemically, and the promising appliance prospect is thus declared. Key words eletric engineering； generator； summarize； permanent magnet 1 A motor generator status quo at home and abroad At present, dome

3、stic and foreign automotive generator is Silicon ectifier generators. The electricity generator from a magnetic field winding, the field winding rotor easily destroyed, disconnected, power consumption, and must be provided by the exciting current batteries can power generation, this will inevitably

4、increase the cost of the automobile. Silicon Rectifier generators with a brushless slip ring structure, slip ring diameter, high-speed, brushless easy to wear, short life expectancy, the high failure rate； other is the brushless generators, it increases the magnetic field gap , MFL, material utiliza

5、tion low and high cost. Domestic agricultural vehicles used by the generators is mainly ferrite magnets alternators, 200 W power in the following, not directly to the agricultural vehicle with the blowing rain, the plane heater, electric speakers, such as DC power, nor can the battery charging. At p

6、resent, many domestic and foreign research institutes, enterprises invested a great deal of funds for permanent magnet motor generator Development of work. Are: (1) Permanent Magnet DC generator. Or through the use of ferrite materials and rare earth permanent magnets Series electronic regulator and

7、 generator windings and structural re-design, generating a stable output voltage direct current. (2) hybrid excitation generators. Its main magnetic field provided by the permanent 2 magnet, the field winding only regulate magnetic field, to overcome the Silicon Rectifier brushless slip ring generat

8、ors installed with the shortcomings of complex structures, low cost performance. 2 permanent magnet generators main advantages (1) structure is simple, reliable work. Permanent magnet generators to avoid a power generator excitation of the field winding-burning, carbon brush and disconnected, easy t

9、o wear slip-ring problems, improve reliability. Electronic regulators and as one of the generators, so that the generators of DC output, small size, light weight, the use of maintenance-friendly. (2) a single-phase dual-half-wave controlled rectifier technology. SCR to achieve with two DC output vol

10、tage regulator to replace the silicon rectifying the six generators Zheng Liuguan composed of three-phase rectifier bridge and regulating the rotor exciting current size of the electronic regulator. As the auto generator power, the output voltage to 14 V, output current, current per PN junction decl

11、ine after a 0.7 V. By Q = IUt is understood that the current is, the more heat. PN junction of the large number of fever is not only a waste of the effective power generators, cooling and solve a difficult problem. Power generator output in the same circumstances, single-phase dual-half-wave control

12、led rectifier regulator circuit power consumption, comparable bridge rectifier circuit of low power consumption 50 percent, reduce the heat to raise the output power, and that the circuit - Stability Pressure, rectifier in one, greatly reducing costs. （ 3） More then 350 W generator, a high magnetic

13、NdFeB rare earth permanent magnet materials, efficient use of our unique rare earth resources, rare metals and copper to reduce our dependence on foreign imports. The permanent magnetic materials with high energy product, the smaller size will be able to provide large enough magnetic field, making t

14、he internal structure of compact generators, small size, light weight. Simplify the structure of the rotor also made to reduce the rotor moment of inertia, practical speed increase over the power (that is, power, volume ratio) to achieve a higher value. 750W of NdFeB permanent magnet generators and