【作者】 刘玉民；

【导师】 焦彦军；

【作者基本信息】 华北电力大学（河北） ， 电力系统及其自动化， 2008， 硕士

【摘要】 随着信息技术不断进步和电厂自动化水平的不断提高,对大型发变组成套保护的通讯系统也提出了更高的要求。因此,研究和开发大型发变组保护的通讯系统具有重要的现实意义和广阔的应用前景。通讯系统作为保护装置的重要组成部分,一方面承担着人机接口管理和监控整套保护装置的任务;另一方面是实现由内对外通讯联系的桥梁。结合大型发变组成套保护装置的实际应用要求和特点,论文首先对通讯系统的方案配置、设计思想及功能实现进行了说明。然后详细阐述了硬件平台的选择、主要接口电路的设计。最后详细阐述了软件平台的选择、对外通讯程序和人机接口程序的实现。研究设计的通讯系统已经应用工程实际,丰富的通讯接口、标准的103规约、友好的人机接口、便捷的本地调试完全符合实际需求。更多还原

【Abstract】 With the progress of information technology, it brings higher requirements for communication system of the large generator-transformer units protection device. Therefore, it is of great necessity and significance to research and develop more advanced communication system for the device. As an important part of the device, communication system is in charge of supervising the entire equipment and managing the man-machine interface. On the other hand, the system is a bridge of communicating with outer terminal or automation system. The specialty and need for application of the generator-transformer unit protection device were summarized. This paper summarizes the need for application and specialty of the generator-transformer unit protection device. First . The scheme and design idea of communication system were introduced. Second . The selection of the hardware platform and the design for main interface circuit were explained in detail. Finally . The selection of the software platform and the realization of communication and MMI program were explained in detail. The research returns have been put into real application and have good effects. Enrich communication interface, standard IEC 60870-5-103, friendly MMI and convenient locality debugging meet the demand completely.更多还原