基于嵌入式操作系统的柱上开关控制器硬件系统研究

发布时间：2018-05-22 16:16

本文选题：柱上开关控制器 + 嵌入式Linux操作系统　；参考：《厦门理工学院》2016年硕士论文

【摘要】：本文探讨了国内外柱上开关控制器的发展状况,分析了柱上开关产品相关的设计规约,对以Linux嵌入式操作系统为核心的通用型高性能智能型柱上开关控制器进行硬件系统的设计。为满足不同类型的柱上开关(负荷开关、断路器)在不同应用场合下的控制需求,本控制器采用通用型模块化硬件设计方案,在柱上开关功能分类的基础上对控制器硬件整体框架进行设计,采用了以基于ARM920T内核的S3C2440为核心的处理器,同时对控制器的模拟量输入模块、开关量输入输出模块、人机接口模块、通信模块和电源模块进行了分析和设计。通过硬件电路模块的设计,控制器实现了IEC61850-5-101规约的通信以及“四遥”、远程在线程序配置和控制软件在线更新升级等功能,可灵活地配置不同的继电保护功能,有效降低中压配电系统中柱上开关控制器的备件冗余度,提升资产利用率,降低设备升级难度及更换成本。为使柱上开关控制器长期稳定在户外运行,本控制器产品严格按照国家标准GB/T17626和配电自动化行业标准DL/T 721-2013进行样机机箱设计和电磁兼容设计。在此基础上提出电路板PCB设计原则和EMC设计方法,最终设计出了一台样机并通过了相关电磁兼容测试,达到了相关标准要求。
[Abstract]:In this paper, the development status of on-column switch controller at home and abroad is discussed, and the related design specification of the column switch product is analyzed. The hardware system of the universal high performance intelligent switch controller based on Linux embedded operating system is designed. In order to meet the control requirements of different types of on-post switches (load switches, circuit breakers) in different applications, the controller adopts a general modular hardware design scheme. On the basis of the classification of switch functions on the column, the overall hardware frame of the controller is designed. The processor based on S3C2440 based on ARM920T kernel is adopted. At the same time, the analog input module, the switch input and output module of the controller are introduced. The man-machine interface module, communication module and power module are analyzed and designed. Through the design of hardware circuit module, the controller realizes the communication of IEC61850-5-101 protocol, the functions of "four remote", remote on-line program configuration and on-line updating and upgrading of control software, and can flexibly configure different relay protection functions. It can effectively reduce the spare parts redundancy of the on-post switch controller in the medium voltage distribution system, raise the utilization ratio of assets, reduce the difficulty of upgrading the equipment and the cost of replacement. In order to make the on-post switch controller run outdoors for a long time, the controller products are designed strictly according to the national standard GB/T17626 and distribution automation industry standard DL/T 721-2013 for prototype chassis design and electromagnetic compatibility design. On this basis, the design principle of PCB and the design method of EMC are put forward. Finally, a prototype is designed and passed the relevant electromagnetic compatibility test, which meets the requirements of relevant standards.
【学位授予单位】：厦门理工学院
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM564

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