Analysis of different control possibilities for the divided wall column: feedback diagonal and dynamic matrix control
作者： M Serra , M Perrier , A Espuña , L Puigjaner
DOI: 10.1016/S0098-1354(01)00660-3
关键词: Mathematics 、 Energy consumption 、 Multiple input 、 Controllability 、 MIMO 、 Diagonal 、 Distillation 、 Control engineering 、 Frequency domain 、 Setpoint 、 Control theory
摘要: Abstract This work addresses the control of divided wall column (DWC) as a basic issue to be considered when this kind distillation arrangement is used take profit its potential reduce energy consumption. Different structures diagonal feedback are compared using multiple input output (MIMO) linear analysis tools in frequency domain. A controllability process done for separation different mixtures and operating conditions, including optimal operation. As result, it seen that trade off appears between minimisation controllability. an alternative, application dynamic matrix (DMC) DWC also evaluated. Through simulation, ability DMC disturbance rejection setpoint tracking studied with control. Important limitations composition finally highlighted.
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