IC697MDL652
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3．1 保护、控制、测量一体化
鉴于目前的运行体制、人员配备、分工，我国的自动化系统主要采用站内监控采集数据而保护相对独立的模式，以提供较清晰的事故分析和处理的界面。但是从技术合理性、减少设备重复配置、简化维护工作量以及发展趋势等方面考虑，将保护与控制、测量结合在一起会更有优势。因为保护和控制、测量的信息源都是来自现场：保护主要采集一次设备的故障异常状态信息，通常要求测量范围较宽，一般按额定值考虑，但测量精度要求较低；而控制和测量主要采集运行状态信息，要求测量范围较窄，通常在测量额定值附近波动，对测量精度要求较高。控(CPU)单元直接接受来自上位机(当地)或远方的控制输出命令，经必要的校核后可直接动作至保护回路，省去了遥控输出、遥控执行等环节，简化了设备，提高了可靠性。但是这种装置的运行可靠性必须很高。因此需要设计、制造、运行、管理部门打破界限，通力合作，以适应这一变化。
3．2 国际标准的应用
近年来，IED 电力自动化方面有了广泛应用。为了实现不同厂家IED 设备的信息共享和互操作性，使厂站电气综合自动化系统成为开发系统，国际电工委员会制定了IEC61850 国际标准。为了与国际接轨，国内已经开始了基于IEC61850 标准的电气综合自动化系统的产品研发，相信这将是未来自动化系统的一个发展方向。
3．3 以太网技术的兴起
随着电力系统的发展，综合自动化系统需要传输的数据越来越多论文联盟wWw.LWlm.coM，对通讯的实时性要求越来越高，以速度快、传输数据量大为特点的以太网满足了这一要求。以太网典型的应用形式是Ethernet+TCP/IP。未来的发展应该是在继承了以太网技术的基础上，结合工业过程应用，产生新一代以以太网为核心的现场总线技术。
目前，对于以太网(Ethernet)、现场总线等计算机网络技术已经普遍应用于变电站综合自动化系统中，且已经积累了丰富的运行经验，智能化电气设备也有了较快的发展，这些都为网络控制系统应用于发电厂电气系统奠定了良好的基础。
4 结语
自动化技术在电力系统中的应用越来越广泛而深入，这也使电网管理方式产生翻天覆地的变化。新技术、新理论的应用使一些概念不断被更新和修正，传统的技术界线逐渐模糊，各种原来看似不相关联的技术会彼此融合和渗透，这些推动着电力自动化系统的不断发展和变化。
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