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摘要
为保证供电的质量和电力系统可靠与经济的运行，各级调度中心必须及时了解各厂站端的实时数据信息，并及时发出准确的调度命令。远动终端（RTU）就是安装在各厂站端的智能设备，负责采集所在变电站表征电力系统运行状态的模拟量和状态量，监视并向调度中心传送这些模拟量和状态量，执行调度中心发往所在变电站的控制和调节命令。
本文完成了以微机交流采样技术为基础的分布式RTU装置的设计。首先简单介绍了电力系统自动化中数据采集和监控的意义以及RTU的发展状况，探讨了它的应用前景和研究意义；然后概述了分布式RTU的总体设计思想，并根据现场实际情况，对RTU进行了可靠性设计，提出了抗干扰措施；接着讨论了RTU的采样算法以及通信技术问题；最后对应用
关键词：远动终端；变电站；RTU；遥测；遥信； 遥控
In order to ensure the quality of power supply and power system reliability and economy of operation, the dispatch center at all levels must keep abreast of the end points of the plant real-time data information. Remote terminal unit (RTU) is installed in the factory-side station, substation Acquisition Characterization of the host running the power system simulation and state capacity to monitor and control center to send the amount and status of these simulation volume, the Executive sent to the dispatch center where substation control and regulation of the order.
This article was completed in order to exchange computer-based sampling technique for the design of distributed RTU devices. First, a brief introduction of the electric power system automation of data collection and monitoring as well as the RTU of the significance of the development situation, discusses the prospects for its application and significance； then distributed provides an overview of the design ideas, and in accordance with the actual situation at the scene of the RTU to reliability design, made anti-interference measures; then discussed the sampling algorithm;Finally, on the application of developed single-chip
Key words：Remote Terminal; Substation; RTU; Telemetering;
Telesignalling; Telecontrol.
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