锅炉汽温超前—滞后补偿型前馈控制器设计  

The Design of the Lead-Lag Compensator for Boiler Steam Temperature Feedforward Control

作　　者：杨平[1] 忻文杰[1] 

机构地区：[1]上海电力学院电力与自动化工程学院,上海200090

出　　处：《石油化工自动化》2009年第6期29-31,53,共4页Automation in Petro-chemical Industry

基　　金：国家"863"项目(2005AA602021);上海市电站自动化技术重点实验室项目(04DZ05901)

摘　　要：针对电站锅炉汽温控制过程中应用超前—滞后补偿器的前馈控制设计理论问题,阐述了两种易操作的设计方法:模型计算法和现场整定法。以某电站锅炉汽温控制为案例设计出前馈控制器并进行了仿真试验研究,结果表明所述方法是有效的并有好的鲁棒性,但是有效减小正动态偏差时也增大了负动态偏差,控制品质改善不多。原因在于一阶超前前馈满足不了高阶超前前馈的需求。Regarding the feedforward control design theory in the application of a lead-lag compensator for power station boiler steam temperature control is studied. The two practical design methods, model computation and field tuning, are stated. The feedforward controller for a power station boiler steam temperature process is designed with the two methods. The conclusion of the simulation test study is that the design methods are effective and have good robustness. But the control quality is not improved a lot because the decreasing of positive error will increase the negative error. The reason is that the firstorder lead compensator does not meet the requirement of the high-order lead compensator.

关 键 词：电站自动化 汽温过程 前馈控制 超前-滞后补偿 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]