Predictive sliding mode based cascade control for parametric uncertainty

Holkar, K. S.; Waghmare, L. M.; Lakhekar, G. V.

doi:10.1007/s40435-014-0095-4

Cited by 3 publications

(4 citation statements)

References 25 publications

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“…Although predictive controllers rely on a solid theoretical foundation, most of the industrial application and commercial use MPCs use their own control policy (see Holkar and Waghmare and Qin and Badgwell). This means that they use different combinations of operational pratices, algorithms, and variable considerations.…”

Section: Assessment Monitoring and Diagnosis Methodologies For Mpcsmentioning

confidence: 99%

Perspectives and challenges in performance assessment of model predictive control

et al. 2016

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The longevity of each MPC application is strongly related to its performance maintenance. This work provides an overview of the methodologies available to fulfill this task, including a discussion about some special requirements of performance assessment methodologies for typical industrial MPC applications. The available methodologies were compared using these requirements. The best approaches were selected and compared to a new method proposed by the authors. These techniques have been applied in two case studies: the Shell benchmark process and the quadruple‐tank process. The results show that the control policy (setpoint, soft constraints, targets) followed in the MPC application should be the determining factor in selecting the methodology for performance assessment.

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Section: Assessment Monitoring and Diagnosis Methodologies For Mpcsmentioning

confidence: 99%

Perspectives and challenges in performance assessment of model predictive control

et al. 2016

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“…A setpoint tracking controller is recommended to eliminate or decrease the overshoot. In this paper, the ISE performance index [13] is adopted to design the setpoint tracking controller G cs . Based on the studying of the Internal Model Control (IMC) method, the H 2 optimal performance objective [22] min W (1 − Y r1 (s)) 2 2 is designed as an optimal setpoint tracking controller.…”

Section: B Design Of the Outer Loop Controller 1) Design Of The Setpoint Tracking Controller G Csmentioning

confidence: 99%

“…Let the second term in equation ( 11) be zero, minimize the right part of equation (11). Thus, we obtain the optimal controller (12) and (13), as shown at the bottom of the next page.…”

Section: B Design Of the Outer Loop Controller 1) Design Of The Setpoint Tracking Controller G Csmentioning

confidence: 99%

“…The cascade control system performs better than single-loop control regardless of where the disturbance enters the control system [13]. Owing to the simple implementation and potentially large control performance improvement, cascade control has been applied extensively for several decades [14], and it can be used in the process control industries for moisture, temperature, and flow control.…”

Section: Introductionmentioning

confidence: 99%

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A Modified Cascade Control Strategy for Tobacco Re-Drying Moisture Control Process With Large Delay-Time

2020

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A novel series structure is proposed based on cascade control for dominating a class of unstable processes with large delay-times. The modified structure consists mainly of one controller that exists in the inner loop, and the inner loop controller is devised on the basis of internal model control (IMC) principles. The outer loop setpoint tracking controller and the inner loop load disturbance rejection controller are designed according to the H2 optimal performance. At the same time, the tuning parameters are selected through the experience approach. Moreover, a suitable example and real value are recommended for the inner loop controller based on a wide-ranging simulation, and the results are implemented to certify the effectiveness of the proposed method. Simultaneously, the proposed method is applied to in a real-world tobacco production line, and the test results prove that the above method is significant in terms of rapidity, robustness and residual errors.INDEX TERMS Modified cascade control, moisture control process, large delay-time, IMC.

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