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Documents 数字化变电站工程应用研究
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  • Author Author: sophie0love
  • Date Created: 21 Nov 2010 1:30 AM Date Created
  • Last Updated Last Updated: 9 Nov 2021 4:48 PM
  • Views 391 views
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数字化变电站工程应用研究

        随着光电技术在传感器应用领域研究的突破,IEC61850标准的颁布实施,以太网通信技术的应用,数字化变电站已经成为变电站自动化技术一个必然的发展方向。数字化变电站基本的特征是设备智能化、通信网络化、运行管理自动化。变电站内智能设备间可实现信息共享和互操作,信息采集、传输、处理、输出过程完全数字化,变电站二次回路中常规的强电模拟信号和控制电缆被光电数字和光纤代替,简化了二次回路。一次设备、二次设备和通信网络都具备完善的自检功能,系统可实现设备健康状况在线监测及报警功能,大大提高了设备管理水平。
   近年来国内对IEC61850标准的研究不断深入,电子式互感器的逐步推广,以太网通信技术在变电站自动化系统的广泛应用,智能化高压电气设备的发展,电气设备在线状态检测等技术日趋成熟,使得建设数字化变电站在工程上的应用具备了必要的技术条件。
   本文在研究数字化变电站相关理论和技术的基础上,总结变电站自动化系统的发展过程及数字化技术的现状、发展趋势,结合变电站运行维护要求,提出了数字化变电站内各种设备需要实现的功能和新要求。通过一个220kV变电站数字化改造工程的实施,介绍了改造过程中遇到的各种问题,并阐述了解决问题的方案。尝试了新的调试验收方式和方法,实现了改造过程中新旧设备的顺利过渡。并使用不同的方法对该变电站自动化系统的各种性能指标进行测试和监视记录。为数字化变电站的设计、实施、调试、测试等方面累积了经验、方法和实际数据。为日后的数字化工程实施提供了非常有价值的参考。

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