SPC和CPC在汽轮机调节中的作用  

Functions of SPC and CPC in Turbine Control

作　　者：李维富 卞丽 

机构地区：[1]莱芜钢铁集团自动化部,山东莱芜271104

出　　处：《自动化仪表》2008年第6期42-44,共3页Process Automation Instrumentation

摘　　要：为了提高汽轮机组的稳定性,采用伍德沃德公司生产的调速装置、位置定位器与电液转换器共同构成了汽轮发电机调速系统的执行中枢,它们接收来自505调节器的命令实现调节汽门行程的精确定位,从而实现汽轮发电机转速和负荷的准确控制。该系统应用在莱钢50MW发电机中,取得了较好的控制效果和控制精度,确保了机组的长期稳定运行。For increasing the stability of turbine unit, the products manufactured by Woodward are adopted. These include the governor, servo position controUer （ SPC ） , and current-to-pressure converter （ CPC ） , and build the action center of turbine generation control. The commands received from 505 digital governor serve for precise positioning the governor valve, thus the speed of the turbine and the load of generator are controlled accurately. The system has been operated in 50 MW unit of Laiwu Steel ; better control effects and control accuracy are obtained ; and long-term stable operation will be ensured.

关 键 词：位置定位器 电液转换器 505调节器 执行中枢 准确控制 

分 类 号：TP214.5[自动化与计算机技术—检测技术与自动化装置]