【摘要】 本文以实际非线性连续搅拌槽反应器(CSTR)系统为背景,建立了对象的数学模型。提出了一种适合于在线应用的快速非线性状态估计器,与传统的估计器相比其有结构简单,计算量小和计时性强等优点。设计了一种能够同时进行设定值跟踪与扰动抑制的鲁棒控制器,并与上述估计器一起构成了一个CSTR闭环计算机估计与控制系统。更多还原

【Abstract】 In this paper, the mathematic model of a typical nonlinear continuous stirred-tank reactor (CSTR) system is set up on the principle of both mechanistic description and system identification:Then based on the Lyapunov stability theory, a nonlinear model-based state estimator is presented, which, compared with the traditional estimat ion algorithm, is simple and fast.A robust controller is also designed for the plant which ensures that satisfactory set-point trcaking occurs simulataneously with disturbance rejection.A computer-controlled closed-loop system which consists of the proposed estimator, controller and the plant is put in simulation.Results agree well with the expected performance demands.更多还原