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大功率开关电源智能并联系统的开发与研究
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摘要
新时代对电源的三大基本要求是:高可靠性、高效率、低电磁干扰。
    近几年来,我国开关电源技术已经有了长足的进展,采用了有效的均流技
    术和软开关技术,理论、研究、生产、应用等已经有相当的成果和规模。中国
    的电源市场特点经过20多年的对外开放和经济的快速发展,具有巨大的发展潜
    力和空间,世界各发达国家都在关注中国电源市场的发展。企业必须坚持高起
    点、高标准,高质量、和国际接轨,这将促进电源市场的规范化,今后的市场
    竞争将是质量的竞争,技术的竞争,人才的竞争。
    本课题研制的高频开关电源主要用于电镀(型号:NDF)、充电(型号:NCF)、
    电化学(型号:NHF)和励磁(型号:NLF)。NDF系列高频开关电源是专为满足
    电镀工艺要求而精心设计制作的,特别适合用作电镀及印刷电路板电镀生产线
    的整流电源。NHF系列高频开关电源是专为满足电解工艺及高纯水处理(EDI
    配套电源)工艺要求而精心设计制作的,特别适合用作电解及EDI除盐配套整
    流电源。
    全文共分为六章:
    第一章主要介绍开关电源的发展过程及现状,阐述了本课题的研究目的、
    研究意义和研究内容。
    第二章主要介绍软开关技术,对软开关Buck电路PWM变换器和移相控制
    全桥(Full—Bridge,FB)PWM变换器工作过程做了详细介绍。
    第三章讨论了电磁兼容重要性,对抗干扰做了详细介绍,并从硬件和软件
    两方面提出相应抑制干扰措施。
    第四章主要分析了本课题硬件部分,对开关电源主电路及保护电路做了介
    绍,并对RS485工作电路做了详细说明。
    第五章主要分析了本课题软件部分,对单台电源模块软件以及监控系统软
    件做了详尽说明,并阐述了几个器件的驱动程序。
    第六章对系统的设计进行了总结,指出了系统设计不完善的地方,并对下
    步工作提了几个建议。
In the new age, three basic requirements are high reliability, high effect and low disturbance of electromagnetism.
    In recent years, great progress has been made in the field of switch-mode power supply technology in China and also effective average current technology and soft switching technology have been adapted. We have received many considerable achievements in theory, research, production and application. After external opening and speedy economical development for twenty years, the power supply market in China has great potential and interspace, and it is also attractive to most developed countries. Our companies should persist in high jumping-off point, high standard, high quality, and catching up with the international levels. It will boost the criterion of power supply market. In later years, market competition will characterize in quality, technology and human resource.
    The high frequency switch-mode power supply focused by this subject mainly used in galvanoplastics(NDF), electrification(NCF), electrical chemistry(NHF), and excitation(NLF). The high frequency switch-mode power supply of NDF is designed for particular galvanoplastics technics, specially for the whole power supply during galvanoplastics and painting circuit board galvanoplastics. The high frequency switch-mode power supply of NHF is designed for electroanalysis technics and dealing with high pure water technics(EDI power supply is fixed),especially for the whole power supply during the electroanalysis in which EDI power supply is used.
    This essay can be divided into six chapters:
    First, the development and status of the switch-mode power supply are introduced, including research purpose, research significance and research contents.
    Second, the part mainly introduces soft switching technology , and some details about the working process of the PWM converter of Buck circuit and the PWM converter of Full-Bridge controlled system.
    Third, this part discusses the significant of electromagnetism compatibility, And this passage detailedly introduces disturbance, and points out resolved measures both
    
    
    
    from hard ware and soft ware.
    Fourth, this passage analyses the hard ware parts of the project, and introduces the main circuit and protection circuit of switch-mode power supply. In addition, this part explains working circuit of RS485.
    Fifth, this passage mainly analyses the soft ware parts of the project. And this part particularly introduces the software of the single pedestal power supply module and monitoring system, and introduces some drivers.
    Sixth, this part sums up the design of system, and points out the shortcomings. What is more, some suggestions have made to next work.
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