【摘要】 本文讨论了现在水电厂计算机监控系统LCU设计原则及趋势,针对开关量输入输出的无源准则、LCU电源的发展趋势、LCU的两种设备接口方式特点、模拟量输入的标准和非电量变送器的接线方式、手动准同期装置的设置问题、交流采样与变送器的特点与配置原则等问题作了探讨。更多还原

【Abstract】 This paper discusses the LCU design principles and tendency of computer supervision and control systemfor hydropower plants. The passive inputs and outputs, the developing tendency of LCU power supply and twokinds of interface for field devices are explained. The analog input signal standard and non-electricity analog inputmodes are introduced. It is described that how to set quasi-synchronism and how to dispose transmitters and alterna-tive sampling devices.更多还原