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242 results on '"Roy, Prasanta"'

7. Robust Tracking and Model Following Controller Based on Higher Order Sliding Mode Control and Observation: With an Application to MagLev System

Author

Ganguly, Siddhartha, Bera, Manas Kumar, and Roy, Prasanta

Subjects
Mathematics - Optimization and Control, Electrical Engineering and Systems Science - Systems and Control
Abstract

This paper deals with the design of robust tracking and model following (RTMF) controller for linear time-invariant (LTI) systems with uncertainties. The controller is based on the second order sliding mode (SOSM) algorithm (super twisting) which is the most effective and popular in the family of higher order sliding modes (HOSM). The use of super twisting algorithm (STA) eliminates the chattering problem encountered in traditional sliding mode control while retaining its robustness properties. The proposed robust tracking controller can guarantee the asymptotic stability of tracking error in the presence of time varying uncertain parameter and exogenous disturbances. Finally, this strategy is implemented on a magnetic levitation system (MagLev) which is inherently unstable and nonlinear. While implementing this proposed RTMF controller for MagLev system, a super twisting observer (STO) is used to estimate the unknown state i.e the velocity of the ball which is not directly available for measurement. It has been observed that the RTMF controller based on STA-STO pair, is not good enough to achieve SOSM for a chosen sliding surface using continuous control. As a remedy, continuous RTMF controller based on STA is implemented with a higher order sliding mode observer (HOSMO). The simulated as well as the experimental results are provided to illustrate the effectiveness of the proposed controller-observers pair., Comment: 11 pages, 16 figures

Published
2020

12. Level Control of a Two-Tank System Using Quantitative Feedback Theory-Based Controller

Author

Chakravarty, Sandipan Prasad, Roy, Aniket, Sinha, Aritra, Roy, Prasanta, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Chong, Peter Han Joo, editor, Kalam, Akhtar, editor, Pascoal, Antonio, editor, and Bera, Manas Kumar, editor

Published
2022
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13. Risk Assessment and Management in Construction Industry

Author

Priyadarshini, Lisyna, Roy, Prasanta, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Das, B. B., editor, Gomez, Christy P., editor, and Mohapatra, Benu. G., editor

Published
2022
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14. Attitude and Vibration Control of a Solar Paneled Satellite Using Quantitative Feedback Theory Based Robust Controller

Author

Sinha, Aritra, Chakravarty, Sandipan Prasad, Dutta, Pratik, Roy, Prasanta, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Suhag, Sathans, editor, Mahanta, Chitralekha, editor, and Mishra, Sukumar, editor

Published
2022
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26. Secure Anonymous Session Key Agreement Between Trusted Users in Global Mobility Network

Author

Roy, Prasanta Kumar, Ball, Sathi, Parai, Krittibas, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Mandal, Jyotsna Kumar, editor, Sinha, Devadatta, editor, and Bandopadhyay, J.P., editor

Published
2019
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34. Sliding Mode Control Versus Fractional-Order Sliding Mode Control: Applied to a Magnetic Levitation System

Author

Roy, Prasanta and Roy, Binoy Krishna

Abstract

This paper focuses on the comparative performances between a Sliding Mode Controller (SMC) and a Fractional-Order SMC (FOSMC). Both the SMC and FOSMC are applied to position control of a ferromagnetic ball against gravity in a Magnetic Levitation (MagLev) system. This paper is the extended version of Roy et al. (in: 2017 Indian control conference (ICC), pp 473–478, 2017). In addition to the contribution of Roy et al. (2017), this paper (i) shows the better potential of an FOSMC over a SMC which is illustrated analytically and (ii) finds the bounds of uncertainty of the parameters of the MagLev system using frequency domain analysis. Experimental results validate the theoretical propositions. The comparative analysis based on these results reveals that the FOSMC performs better than the SMC in terms of tracking accuracy, speed of response, chattering, control effort, and control energy.

Published
2024
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35. Rh(III)‐Catalyzed C−H Activation/O‐Annulation for Construction of Divergent Spirosuccinimide and Maleimide‐Fused Isochromenes.

Author

Kamaraj, Eswaran, Roy, Prasanta, and Lee, Yong Rok

Subjects
*ANNULATION, *FUNCTIONAL groups, *MALEIMIDES, *RING formation (Chemistry), *RHODIUM
Abstract

A rhodium‐catalyzed [5+1] cycloaddition via C−H activation/O‐annulation strategy for synthesizing biologically interesting isochromenes is presented. This protocol selectively provides divergently functionalized isochromenes containing spirosuccinimide and maleimide scaffolds according to the maleimides and itaconimides used as the substrates. This methodology exhibits an extensive substrate scope, remarkable functional group tolerance, and high regioselectivity. [ABSTRACT FROM AUTHOR]

Published
2023
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46. Robust control of water quality in intensive aquaculture using multi‐variable quantitative feedback theory: From an Indian context.

Author

Chakravarty, Sandipan Prasad, Sinha, Aritra, Baishya, Sangipran, and Roy, Prasanta

Subjects
WATER quality management, ROBUST control, AQUACULTURE, FECAL contamination, TRANSFER matrix, WATER quality
Abstract

This paper addresses the problem of controlling turbidity, dissolved oxygen, ammonium‐ion concentration, and water‐temperature to maintain the desired water quality in an intensive aquaculture plant. The research is carried out to fit into the present scenario of intensive aquaculture in India. The plant model along with uncertain parameters are derived using physical laws and the data acquired from an aquaculture pond in Assam, India. A pre‐compensated multi‐variable quantitative feedback theory (QFT)‐based fully populated robust matrix controller is proposed to mitigate the control challenge. A novel method is used to design the pre‐compensator to enhance the diagonal dominance of plant transfer function matrix. The desired robust stability, reference tracking, and sensitivity specifications are fulfilled by the proposed QFT‐based robust controller despite the parametric uncertainty. The effectiveness of the proposed method is validated through numerical simulation. A comparative study against a H∞$$ {H}_{\infty } $$ controller shows that the proposed controller strategy gives a satisfactory performance compared to it. [ABSTRACT FROM AUTHOR]

Published
2023
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