Development of decoupling scheme for high order MIMO process based on PSO technique

El-Garhy, Ahmed M.; EL-Shimy, M.

doi:10.1007/s10489-006-0015-1

Cited by 9 publications

(17 citation statements)

References 8 publications

(14 reference statements)

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“…In this regard, the relative gain array (RGA) method is used. Afterwards, a decoupling compensation network is designed for the reduction of residual interactions [11]. …”

Section: Two-coupled Distillation Column Processmentioning

confidence: 99%

“…In this paper, the simplest form of the decoupling compensation matrix introduced in the previous study [11], which has unity diagonal elements, is replaced with the general form presented in (3). This modification introduces a remarkable improvement in the system response as discussed in Section 5.…”

Section: Two-coupled Distillation Column Processmentioning

confidence: 99%

“…Regarding the parameterization of BELBIC, the trial and error is widely used for controller parameters estimation. Thus, the utilization of various optimization techniques based on artificial intelligence introduces an efficient alternative in both cases [11, 37]. …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A New Hybrid BFOA-PSO Optimization Technique for Decoupling and Robust Control of Two-Coupled Distillation Column Process

Abdel-Karim

Mohamed

El-Garhy

et al. 2016

Computational Intelligence and Neuroscience

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The two-coupled distillation column process is a physically complicated system in many aspects. Specifically, the nested interrelationship between system inputs and outputs constitutes one of the significant challenges in system control design. Mostly, such a process is to be decoupled into several input/output pairings (loops), so that a single controller can be assigned for each loop. In the frame of this research, the Brain Emotional Learning Based Intelligent Controller (BELBIC) forms the control structure for each decoupled loop. The paper's main objective is to develop a parameterization technique for decoupling and control schemes, which ensures robust control behavior. In this regard, the novel optimization technique Bacterial Swarm Optimization (BSO) is utilized for the minimization of summation of the integral time-weighted squared errors (ITSEs) for all control loops. This optimization technique constitutes a hybrid between two techniques, which are the Particle Swarm and Bacterial Foraging algorithms. According to the simulation results, this hybridized technique ensures low mathematical burdens and high decoupling and control accuracy. Moreover, the behavior analysis of the proposed BELBIC shows a remarkable improvement in the time domain behavior and robustness over the conventional PID controller.

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“…In this regard, the relative gain array (RGA) method is used. Afterwards, a decoupling compensation network is designed for the reduction of residual interactions [11]. …”

Section: Two-coupled Distillation Column Processmentioning

confidence: 99%

Section: Two-coupled Distillation Column Processmentioning

confidence: 99%

See 1 more Smart Citation

A New Hybrid BFOA-PSO Optimization Technique for Decoupling and Robust Control of Two-Coupled Distillation Column Process

Abdel-Karim

Mohamed

El-Garhy

et al. 2016

Computational Intelligence and Neuroscience

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“…Recently, many researchers have devoted much effort in this area. The designers of control systems decouple the process of the twocoupled distillation columns into a group of independent loops [1]. They control the temperature for each loop via conventional PID control law [2] and adjust its gains appropriately according to the process dynamics.…”

Section: Introductionmentioning

confidence: 99%

“…For proper control of the process, decoupling it into four loops is necessary. Some researchers propose a PSO-based decoupling technique [1]. Such a technique estimates the optimum values of a steady state decoupling compensation matrix that minimizes the interactions between each input and its unpaired outputs.…”

Section: Introductionmentioning

confidence: 99%

PSO-BELBIC scheme for two-coupled distillation column process

Dorrah

El-Garhy

EL-Shimy

2011

Journal of Advanced Research

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In the two-coupled distillation column process, keeping the tray temperatures within a specified range around their steady state values assures the specifications for top and bottom product purity. The two-coupled distillation column is a 4 Input/4 Output process. Normally, control engineers decouple the process into four independent loops. They assign a PID controller to control each loop. Tuning of conventional PID controllers is very difficult when the process is subject to external unknown factors. The paper proposes a Brain Emotional Learning Based Intelligent Controller (BELBIC) to replace conventional PID controllers. Moreover, the values of BELBIC and PID gains are optimized using a particle swarm optimization (PSO) technique with minimization of Integral Square Error (ISE) for all loops. The paper compares the performance of the proposed PSO-BELBICs with that of conventional PSO-PID controllers. PSO-BELBICs prove their usefulness in improving time domain behavior with keeping robustness for all loops.

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Generalized discrete decoupling and control of MIMO systems

Pandey

Dey

Banerjee

2022

Asian Journal of Control

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This paper proposes an efficient discrete-time decoupling algorithm for multiple input multiple output (MIMO) systems having strong coupling between inputs and outputs. A design method for discrete decouplers is proposed to eliminate the cross-coupling effects present in MIMO systems. The proposed decoupling technique is based on relative gain array (RGA) approach of MIMO system. In order to perform closed-loop control, individual discrete-time PID controllers are designed based on Kharitonov theorem for each of the SISO control loops of the resulting decoupled MIMO system. The closed-loop performance of the MIMO system under consideration is investigated in simulation and in real time which illustrate that the proposed decoupling algorithm satisfactorily nullifies the interaction between the inputs and outputs. The control scheme exhibits perfect tracking of the reference commands even in presence of disturbances. Twin rotor MIMO system (TRMS) is considered as the real-time example to validate the proposed method. Further, the performance of the compensated TRMS system is analyzed in frequency domain in presence of common actuator nonlinearities dead zone and saturation together. The performances of the controllers are found to be efficient even in presence of actuator nonlinearities.

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Development of decoupling scheme for high order MIMO process based on PSO technique

Cited by 9 publications

References 8 publications

A New Hybrid BFOA-PSO Optimization Technique for Decoupling and Robust Control of Two-Coupled Distillation Column Process

A New Hybrid BFOA-PSO Optimization Technique for Decoupling and Robust Control of Two-Coupled Distillation Column Process

PSO-BELBIC scheme for two-coupled distillation column process

Generalized discrete decoupling and control of MIMO systems

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