Development of decoupling scheme for high order MIMO process based on PSO technique |
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Authors: | A M El-Garhy M E El-Shimy |
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Affiliation: | (1) Lecturer of Automatic Control, Faculty of Engineering, Helwan University, Cairo, Egypt;(2) Engineer of Automatic Control, Arab Organization for Industrialization, Cairo, Egypt |
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Abstract: | Multiple-input multiple-output (MIMO) with N Input/ N Output processes are characterized by significant interactions between
their inputs and outputs. The control of MIMO processes is usually implemented using sets of single-input single-output (SISO)
loop controllers, which requires proper input–output pairing and development of decoupling compensator unit. In this paper,
a generalized decoupling technique is proposed. The proposed technique uses relative gain array (RGA) to select proper pairing
and particle swarm optimization (PSO) technique to estimate the optimal elements’ values of steady state decoupling compensation
matrix constituting the decoupling compensator unit. The proposed technique is applied on 4 Input/ 4 Output two coupled distillation
columns process, it proves remarkable success in minimizing the interaction between every input and all outputs except that
output has been proper paired with. |
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Keywords: | Multiple input multiple output (MIMO) process Relative gain array (RGA) Decoupling compensation matrix Particle swarm optimization |
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