Keeping the zeros and poles of the PID unchanged, an adaptive PID controller is presented using the proposed recursive algorithm in the closed-loop system.

在确保PID零极点不变的基础上，将开环递推整定算法引入到闭环系统中，提出了自适应pid控制算法。

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Recursive least square method was used to adjust the parameters of the PID controller, which was applied in three-element control system of boiler drum level.

利用递推最小二乘法循环调整P ID参数，并将该控制器应用于锅炉汽包水位三冲量控制系统。

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A recursive gradient controlling law for adaptive intelligent switch controller of inertial and large dead time system is given in this paper.

对大惯性及纯滞后系统的自适应智能开关控制器给出了一种递推梯度形式的控制规律。

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