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在过程控制系统中,无自衡过程的动态特性常用传递函数G_p(s)=e~(-Tds)/TS(1)或G_p(s)=e~(-Tds)/T_1S(T_2+1)(2)将实际无自衡过程的动态特性,通过测辨确定它具有式(1)或式(2)表示的数学模型,并不是一件容易的工作。越来越多的场合,都在采用闭环测辨的形式,它克服了开环测辨的弊端。然而,提出既简单又准确的闭环测辨计算法一直是人们关心的问题。这里,作者推荐一种闭环确定无自衡过
In the process control system, the common transfer function G_p (s) = e ~ (-Tds) / TS (1) or G_p (s) = e ~ (-Tds) / T_1S (T_2 + 1 (2) It is not an easy job to determine the dynamic characteristics of the process without self-balancing by determining the mathematical model represented by equation (1) or (2). More and more occasions, are in the form of closed-loop detection, which overcomes the shortcomings of open-loop detection. However, it is always a matter of concern that a simple and accurate method of closed-loop determination is proposed. Here, the author recommends a closed-loop determination without self-balancing