First the development and the trend of DCS are overviewed to analyze the existing defects of DCS and to emphatically discuss its applications in monitoring control systems of thermal power stations as well.

• 文中首先综述了目前国内外DCS的发展概况和趋势，分析了目前分散控制系统(DCS)的缺陷，并着重分析了DCS在火电厂监控系统中的应用情况，提出了采用基于现场总线技术的现场总线控制系统(FCS)实现DCS控制的设计方法。