1000MW超超临界机组过热汽温控制设计  

Design of Superheated Steam Temperature Control in 1000MW Super-supercritical Unit

作　　者：侯新建[1,2] 张卫东[1] 包一鸣[2] 刘潇[3] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240 [2]华东电力设计院,上海200063 [3]西门子电站自动化有限公司,江苏南京210003

出　　处：《自动化仪表》2009年第11期8-10,共3页Process Automation Instrumentation

摘　　要：为解决过热汽温定值扰动问题,针对外高桥第三发电厂1000 MW超超临界机组过热汽温被控对象的大惯性、大延迟等特性,基于Smith预估器原理,设计了一种改进型Smith预估器控制方法。Matlab仿真结果表明,所设计的控制系统在稳定性、快速性等方面优于常规串级PID控制系统,同时对同类超超临界机组过热汽温控制系统设计也具有很好的参考作用。To solve the setpoint distrubance of temperature of superheated steam, aiming at the characteristics of the controlled object in Wai- GaoQiao Phase 3, 1 000 MW super-supercritical power unit, i. e. , large inertia and time lag; based on the principle of Smith predictor, the improved Smith preditive control method has been designed. The result of Matlab simulation indietaes that the control system designed is better than conventional cascade PID control system in stability and rapidity. The system is also valuable for reference in designing temperature control system of superheated steam for similar super-supercritieal power units.

关 键 词：超超临界 过热汽温度 大惯性 大延迟 改进型Smith预估器 

分 类 号：TK323[动力工程及工程热物理—热能工程]