【摘要】 现有给水泵系统都采用单变量系统进行控制,但该系统本质上是多变量系统,用单变量方法解决多变量问题给系统安全经济运行带来隐患。将锅炉变速给水泵控制系统视为多变量控制系统进行了讨论,用Bristol-skinkey方法进行了分析,应用V规范解耦环节结构解耦,利用总和时间常数法对等效对象进行了校正、整定,并进行了计算机仿真,给出了仿真曲线。结果表明,系统间能做到分别调节,相互作用小,无静态偏差。分析和整定方法适合于给水泵系统,控制品质好,符合工程实际,有实用价值。图6表1参3更多还原

【Abstract】 The feed pump system is controlled by single loop control theory ,but it is truly multivariable system ,so feed pump control system in use exist problems about safety and efficiency.It discusses control system of boiler feed pump with variable speed and analysis the controlled object by Bristol-skinkey , and the controlled object is decoupled by V standard structure ,decoupled equivalent controlled objects are tuned and adjusted by sum time constant approach, the control system are simulated by computer, step response curves are given.Result shows that control system can be regulated respectively, interaction can be eliminated,steady state error is zero, it is better quality. The approaches adapt to feed pump control system and can meet need of engineering ,so those possess practical significance.Figs 6,table 1 and refs 3.更多还原