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106 results on '"Sourav Patra"'

1. Electrochemical separation and purification of no-carrier-added 177Lu for radiopharmaceutical preparation: Translation from bench to bed

Author

Sourav Patra, Rubel Chakravarty, Khajan Singh, K.V. Vimalnath, and Sudipta Chakraborty

Subjects
177Lu, Electrochemical separation, No-carrier-added, Purification, Radiopharmaceuticals, DOTA-TATE, Chemical engineering, TP155-156
Abstract

The entry of no-carrier-added (NCA) 177Lu in the arena of clinical nuclear medicine has revolutionized the practice of targeted radionuclide tumor therapy. In this study, we report the development of an electrochemical separation and purification procedure to obtain NCA 177Lu in a clinically usable form. The overall yield of the process developed was > 70% and it was reproducible in multiple batches. The effective specific activity of NCA 177Lu was 3.32 ± 0.04 TBq/mg and the radioisotope was found suitable for formulation of therapeutically relevant doses of [177Lu]Lu-DOTA-TATE with >98% radiolabeling yield. As a proof of concept, [177Lu]Lu-DOTA-TATE synthesized using electrochemically purified NCA 177Lu was administered in patients with proven neuroendocrine tumor (NET) and satisfactory preliminary clinical outcome was obtained. The feasibility of recovery of enriched (in 176Yb) target in chemical form suitable for reuse in the production of a fresh batch of NCA 177Lu was demonstrated, which makes the process economically viable. Overall, this robust and efficient radiochemical separation and purification technology might aid towards introduction of new 177Lu-based radiopharmaceuticals for use in clinical context in the foreseeable future.

Published
2023
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2. Microfluidic solvent extraction of no-carrier-added 64Cu from irradiated Zn target for radiopharmaceutical preparation

Author

Rubel Chakravarty, Nirvik Sen, Sourav Patra, A. Rajeswari, Priyalata Shetty, Krishna Kumar Singh, and Sudipta Chakraborty

Subjects
64Cu, Dithizone, Liquid-liquid extraction, Microfluidics, No-carrier-added, Radiopharmaceuticals, Chemical engineering, TP155-156
Abstract

Microfluidics based liquid-liquid extraction is emerging as an enabling and powerful technology in radiochemical separations of medically important radioisotopes. In this study, we report the production of high specific activity 64Cu via 64Zn (n, p) 64Cu reaction in a research reactor. A microfluidic continuous flow liquid-liquid extraction system based on the use of dithizone as extractant was developed for efficient separation of miniscule quantity of 64Cu (in ng level) from bulk irradiated Zn target (in g level). The extraction process is completely selective for 64Cu, which could subsequently be retrieved in the desired medium for preparation of radiopharmaceuticals. The overall yield of 64Cu after the separation process was > 85 % and it was obtained with adequately high radionuclidic, radiochemical and chemical purities. Additionally, the effective specific activity of radio chemically separated 64Cu was determined to be 12.2 ± 0.8 GBq/µg, which is quite close to that reported for cyclotron produced no-carrier-added (NCA) 64Cu available commercially. The final 64Cu formulation could be effectively used for preparation of a variety of radiopharmaceuticals with high radiolabeling yields. The promising results obtained in this study open the pathway to achieve continuous and efficient recovery of reactor produced NCA 64Cu from the irradiated target using an automated microfluidic setup.

Published
2023
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3. Application of Genetic Algorithm Based Intuitionistic Fuzzy k-Mode for Clustering Categorical Data

Author

Goyal Akarsh, Sourav Patra Anupam, and Kalyanaraman P.

Subjects
categorical data, clustering, data mining, intuitionistic fuzzy k-mode, simulated annealing, genetic algorithm, Cybernetics, Q300-390
Abstract

In present times a great number of clustering algorithms are available which group objects having similar features. But most of the datasets have data values that are categorical, which makes it difficult to implement these algorithms. The concept of genetic algorithm on intuitionistic fuzzy k-Mode method is proposed in the paper to cluster categorical data. This model is an extension of intuitionistic fuzzy k-Mode in which the notion of fitness related objective functions, crossovers, mutations and probability has been added to provide better clusters for the data objects. Also the intuitionistic parameter has been retained for the calculation of membership values of element x in a given cluster. UCI repository datasets were used for assessing efficacy of algorithms. The qualified analysis and results depict much consistent performance, where a significant improvement is achieved as compared to intuitionistic fuzzy k-Mode and simulated annealing based intuitionistic fuzzy k-mode. Genetic Algorithm based intuitionistic fuzzy k-Mode is very efficient when clustering is applied on large datasets that are categorical in nature, which proves to be very critical for data mining processes.

Published
2017
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10. Measurement of the B+/B0 production ratio in e+e− collisions at the ϒ(4S) resonance using B→J/ψ(ℓℓ)K decays at Belle

Author

Shubhangi Krishan Maurya, Thomas E Browder, Jyotirmoi Borah, Saurabh Sandilya, Christos Hadjivasiliou, Hiroaki Aihara, Andrzej Bożek, Dmitri Liventsev, Markus Tobias Prim, Ichiro Adachi, Christoph Schwanda, Jan Strube, MIN-ZU WANG, Shohei Nishida, Daniel Ferlewicz, Bruce Yabsley, Longke Li, Paolo Branchini, Leo Piilonen, Stephan Paul, Anselm Vossen, Mario Merola, Jake Bennett, Peter Kodyš, Marcello Campajola, Chunhui Chen, Masako Iwasaki, Isamu Nakamura, Karim Trabelsi, J B Singh, Vipin Gaur, Kevin Varvell, Sourav Patra, Chang-Zheng Yuan, Akimasa Ishikawa, Giacomo De Pietro, Seongbae Yang, Peter Mandeville Lewis, David Asner, Chia-Ling Hsu, PHILLIP URQUIJO, Kiyoshi Tanida, and Elena Solovieva

Published
2023

13. Measurement of branching fractions of Λc+→pKS0KS0 and Λc+→pKS0η at Belle

Author

Shubhangi Krishan Maurya, Swagato Banerjee, Thomas E Browder, Jyotirmoi Borah, Saurabh Sandilya, Gunar Schnell, Christos Hadjivasiliou, Hiroaki Aihara, Andrzej Bożek, Dmitri Liventsev, Markus Tobias Prim, Ichiro Adachi, Christoph Schwanda, Kay Kinoshita, Jan Strube, Armine Rostomyan, MIN-ZU WANG, Shohei Nishida, Daniel Ferlewicz, Bruce Yabsley, Bostjan Golob, Longke Li, Paolo Branchini, Leo Piilonen, Frank Simon, Stephan Paul, Anselm Vossen, Thanh Dong, Mario Merola, Jake Bennett, Peter Kodyš, Marcello Campajola, Masako Iwasaki, Isamu Nakamura, J B Singh, Vipin Gaur, Kevin Varvell, Torben Ferber, Sourav Patra, Chang-Zheng Yuan, Akimasa Ishikawa, Giacomo De Pietro, Seongbae Yang, David Asner, Chia-Ling Hsu, PHILLIP URQUIJO, Kiyoshi Tanida, and Elena Solovieva

Published
2023

15. Measurement of the branching fractions for Cabibbo-suppressed decays D+→K+K−π+π0 and D(s)+→K+π−π+π0 at Belle

Author

Shubhangi Krishan Maurya, Thomas E Browder, Jyotirmoi Borah, Saurabh Sandilya, Gunar Schnell, Christos Hadjivasiliou, Hiroaki Aihara, Andrzej Bożek, Alberto Martini, Dmitri Liventsev, Markus Tobias Prim, Christoph Schwanda, Kay Kinoshita, Lopamudra Nayak, Armine Rostomyan, MIN-ZU WANG, Shohei Nishida, Bruce Yabsley, David Dossett, Longke Li, Paolo Branchini, Leo Piilonen, Frank Simon, Stephan Paul, Sam Cunliffe, Anselm Vossen, Mario Merola, Jake Bennett, Peter Kodyš, Marcello Campajola, Masako Iwasaki, J B Singh, Vipin Gaur, Debashis Sahoo, Kevin Varvell, Sourav Patra, Chang-Zheng Yuan, Akimasa Ishikawa, Giacomo De Pietro, Seongbae Yang, David Asner, Chia-Ling Hsu, Kiyoshi Tanida, Elena Solovieva, and PAO-TI CHANG

Published
2023

21. Leader-Based Consensus in Directed Networks of Homogeneous Positive Agents With Multiple Inputs

Author

Sabyasachi Bhattacharyya and Sourav Patra

Subjects
Control and Systems Engineering, Mechanical Engineering, Instrumentation, Computer Science Applications, Information Systems
Abstract

In this paper, the non-zero finite positive state consensus problem of leader-following multi-agent systems (MASs) connected over a directed network is investigated. The multi-agent network consists of homogeneous linear time-invariant (LTI) positive agents whose minimal positive state-space realization is assumed to be known. In this paper, a state-feedback hierarchical control protocol is proposed where the local controller synthesizes a singular, Lyapunov stable, and Metzler system matrix with a simple dominant eigenvalue at origin. The obtained consensus vector is the positive eigenvector associated with the zero eigenvalue of the synthesized system matrix. The controller gain matrices are obtained by solving a set of necessary and sufficient conditions derived in linear programing framework. A numerical example is given to elucidate the usefulness of the proposed results.

Published
2022

22. Search for the decay Bs0→η′KS0

Author

Thomas E Browder, Jyotirmoi Borah, Shawn Dubey, Lopamudra Nayak, Denis Bodrov, Bruce Yabsley, Evgeniy Kovalenko, Sam Cunliffe, Vladimir Savinov, Sourav Patra, Valentina Zhukova, Giacomo De Pietro, Konstantin Belous, Chia-Ling Hsu, and Elena Solovieva

Published
2022

26. Search for the radiative penguin decays B0→KS0KS0γ in the Belle experiment

Author

Shubhangi Krishan Maurya, Thomas E Browder, Jyotirmoi Borah, Alberto Martini, Lopamudra Nayak, Denis Bodrov, Bruce Yabsley, Evgeniy Kovalenko, Andrii Natochii, Sam Cunliffe, Thanh Dong, Jens Sören Lange, Hiroaki Ono, Sourav Patra, Valentina Zhukova, Kookhyun Kang, Konstantin Belous, Felix Metzner, Chia-Ling Hsu, and Elena Solovieva

Published
2022

28. Study of γγ→γψ(2S) at Belle

Author

Andrzej Bożek, Lopamudra Nayak, Evgeniy Kovalenko, Andrii Natochii, Sam Cunliffe, Thanh Dong, Masako Iwasaki, Zbigniew Natkaniec, Jens Sören Lange, Hiroaki Ono, Sourav Patra, BIPUL BHUYAN, Valentina Zhukova, Felix Metzner, Makoto Takizawa, Chia-Ling Hsu, Elena Solovieva, and Olga Werbycka

Published
2022

30. Measurement of Two-Particle Correlations of Hadrons in e+e− Collisions at Belle

Author

Thomas E Browder, Jyotirmoi Borah, Alberto Martini, Lopamudra Nayak, Yu-Chen Chen, Denis Bodrov, Yen-Jie Lee, Evgeniy Kovalenko, Andrii Natochii, Thanh Dong, Marcello Campajola, Masako Iwasaki, Jens Sören Lange, Sourav Patra, Valentina Zhukova, Giacomo De Pietro, Konstantin Belous, Felix Metzner, Chia-Ling Hsu, and Elena Solovieva

Subjects
General Physics and Astronomy
Published
2022

31. Integral Control of Stable Negative-Imaginary Systems Preceded by Hysteresis Nonlinearity

Author

Siddhartha Sen, Sourav Patra, and Arnab Dey

Subjects
Physics, 0209 industrial biotechnology, Linear system, 02 engineering and technology, Tracking (particle physics), Computer Science Applications, Nonlinear system, Hysteresis, 020901 industrial engineering & automation, Control and Systems Engineering, Control theory, Control system, Diagonal matrix, Electrical and Electronic Engineering, Constant (mathematics), Positive feedback
Abstract

In this note, constant reference tracking using integral control for negative-imaginary (NI) systems preceded by hysteresis nonlinearity is addressed. The hysteresis nonlinearity is considered to be slope-restricted, though no specific modeling framework is exploited. It is effectively shown that integral tracking controllers are guaranteed to exist when a stable NI system with sign-definite dc-gain is preceded by such hysteresis nonlinearities. When the dc-gain is negative-definite, under positive feedback configuration with positive slope-restricted hysteresis, it is established that the integral controller gain can be any positive diagonal matrix. The development of the proposed model-independent inversion-free scheme is carried out in general state-space setting and is applicable for multiple-input multiple-output systems with decoupled hysteresis nonlinearities. Effectiveness of the results is illustrated with examples.

Published
2020

32. Search for a Light Higgs Boson in Single-Photon Decays of ϒ(1S) Using ϒ(2S)→π+π−ϒ(1S) Tagging Method

Author

Shubhangi Krishan Maurya, Thomas E Browder, Kenkichi Miyabayashi, Jyotirmoi Borah, Lopamudra Nayak, Denis Bodrov, Bruce Yabsley, Evgeniy Kovalenko, Andrii Natochii, Sam Cunliffe, Thanh Dong, Marcello Campajola, Chengping Shen, Zbigniew Natkaniec, Hiroaki Ono, Sourav Patra, BIPUL BHUYAN, Valentina Zhukova, Giacomo De Pietro, Konstantin Belous, Felix Metzner, Makoto Takizawa, and Elena Solovieva

Subjects
General Physics and Astronomy
Published
2022

33. Search for tetraquark states Xccs¯s¯ in Ds+Ds+(Ds*+Ds*+) final states at Belle

Author

Shubhangi Krishan Maurya, Thomas E Browder, Kenkichi Miyabayashi, Jyotirmoi Borah, Andrzej Bożek, Alberto Martini, Xuyang Gao, Lopamudra Nayak, Denis Bodrov, Bruce Yabsley, Evgeniy Kovalenko, Andrii Natochii, Sam Cunliffe, Thanh Dong, Marcello Campajola, Chengping Shen, Zbigniew Natkaniec, Jens Sören Lange, Hiroaki Ono, Tianping Gu, Sourav Patra, BIPUL BHUYAN, Valentina Zhukova, Giacomo De Pietro, Yang Li, Konstantin Belous, Felix Metzner, Makoto Takizawa, Chia-Ling Hsu, and Elena Solovieva

Published
2022

35. Measurement of Differential Branching Fractions of Inclusive B→Xuℓ+νℓ Decays

Author

Thomas E Browder, Kenkichi Miyabayashi, Tadeas Bilka, Saurabh Sandilya, Shawn Dubey, Lu Cao, Jan Strube, Lopamudra Nayak, Raynette Van Tonder, Michel Enrique Hernández Villanueva, Bruce Yabsley, Evgeniy Kovalenko, Andrii Natochii, Sam Cunliffe, Thanh Dong, Marcello Campajola, Masako Iwasaki, Florian Bernlochner, Hiroaki Ono, Martin Sevior, Tianping Gu, Sourav Patra, Valentina Zhukova, Giacomo De Pietro, Konstantin Belous, Felix Metzner, Sven Vahsen, Chia-Ling Hsu, Elena Solovieva, and Kirill Chilikin

Subjects
010308 nuclear & particles physics, 0103 physical sciences, General Physics and Astronomy, 010306 general physics, 01 natural sciences
Published
2021

36. Study of e+e−→ϒ(1S,2S)η and e+e−→ϒ(1S)η′ at s=10.866 GeV with the Belle detector

Author

Thomas E Browder, Kenkichi Miyabayashi, Tadeas Bilka, Saurabh Sandilya, Andrzej Bożek, Lopamudra Nayak, Evgeniy Kovalenko, Anna Vinokurova, Andrii Natochii, Sam Cunliffe, Thanh Dong, Marcello Campajola, Masako Iwasaki, Alexander Bondar, Jens Sören Lange, Hiroaki Ono, Martin Sevior, Sourav Patra, Valentina Zhukova, Felix Metzner, Makoto Takizawa, Chia-Ling Hsu, Elena Solovieva, and Kirill Chilikin

Subjects
010308 nuclear & particles physics, 0103 physical sciences, 010306 general physics, 01 natural sciences
Published
2021

38. Observer-Based Stabilization of Linear Discrete Time-VaryingDelay Systems

Author

M. Venkatesh, Goshaidas Ray, and Sourav Patra

Subjects
Discrete time and continuous time, Control and Systems Engineering, Control theory, Computer science, Mechanical Engineering, Control equipment, Observer based, Instrumentation, Computer Science Applications, Information Systems
Abstract

This paper presents the design of an observer-based stabilizing controller for linear discrete-time systems subject to interval time-varying state-delay. In this work, the problem has been formulated in convex optimization framework by constructing a new Lyapunov–Krasovskii (LK) functional to derive delay-dependent stabilization criteria. The summation inequality and the extended reciprocally convex inequality are exploited to obtain a less conservative delay upper bound in linear matrix inequality (LMI) framework. The derived stability conditions are delay-dependent and thus ensure global asymptotic stability in presence of any time-delay less than the obtained delay upper bound. Numerical examples are included to demonstrate the usefulness of the developed results.

Published
2021

40. A solvent extraction-based procedure for removal of

Author

Rubel, Chakravarty, Ramu, Ram, Sourav, Patra, Haladhar Dev, Sarma, and Sudipta, Chakraborty

Subjects
Radioisotopes, Calcium Chloride, Calcium Radioisotopes, Palliative Care, Solvents, Animals, Humans, Pain, Tissue Distribution, Rats, Wistar, Rats
Abstract

Calcium-45 [T

Published
2021

43. Electrochemical separation of 132/135La theranostic pair from proton irradiated Ba target

Author

K. C. Jagadeesan, S. V. Thakare, Sudipta Chakraborty, Rubel Chakravarty, and Sourav Patra

Subjects
Materials science, Proton, Radiochemistry, chemistry.chemical_element, Filtration and Separation, Electrolyte, Electrochemistry, Analytical Chemistry, Anode, chemistry, Yield (chemistry), Lanthanum, Irradiation, Platinum
Abstract

Lanthanum-132/135 is an emerging theranostic pair of radiometals that might find widespread application in nuclear medicine. The present study describes the production of 132/135La in a low energy linear accelerator via natBa (p, n) 132/135La reaction. A robust and efficient method has been optimized for separation of no-carrier-added (NCA) 132/135La from the bulk irradiated target by electrodeposition of 132/135La on platinum anode. Near quantitative electrodeposition yield of 132/135La could be obtained when a potential of 6 V was applied for 20 min in an electrolyte solution (containing Ba and La) maintained at pH ∼ 3. After electrochemical separation, 132/135La could be obtained with > 99.99 % radionuclidic purity in a form suitable for radiopharmaceutical preparation. As a proof of concept, 132/135La-complex of a tumor avid peptide conjugate, namely, DOTA-E-[c(RGDfK)]2 was formulated with > 98 % yield and the radiolabeled complex maintained its integrity under physiological conditions over a prolonged period of time. Overall, this study amply demonstrates that electrochemical separation is a viable strategy for obtaining 132/135La for theranostic radiopharmaceutical preparation.

Published
2022

45. Tracking control for systems with slope-restricted hysteresis nonlinearities

Author

Siddhartha Sen, Arnab Dey, and Sourav Patra

Subjects
0209 industrial biotechnology, Computer science, Mechanical Engineering, General Chemical Engineering, Biomedical Engineering, Aerospace Engineering, 02 engineering and technology, Tracking (particle physics), Industrial and Manufacturing Engineering, 020901 industrial engineering & automation, Hysteresis (economics), Control and Systems Engineering, Control theory, 0202 electrical engineering, electronic engineering, information engineering, 020201 artificial intelligence & image processing, Reference tracking, Electrical and Electronic Engineering
Published
2018

46. An improved stability result for linear time-delay system using a new Lyapunov–Krasovskii functional and extended reciprocally convex inequality

Author

M. Venkatesh, K. Ramakrishnan, Goshaidas Ray, and Sourav Patra

Subjects
0209 industrial biotechnology, Inequality, media_common.quotation_subject, Linear system, Regular polygon, Lyapunov krasovskii, 02 engineering and technology, Interval (mathematics), Stability result, Stability (probability), Computer Science Applications, Theoretical Computer Science, Nonlinear Sciences::Chaotic Dynamics, 020901 industrial engineering & automation, Computer Science::Systems and Control, Control and Systems Engineering, 0202 electrical engineering, electronic engineering, information engineering, Applied mathematics, 020201 artificial intelligence & image processing, Time complexity, media_common, Mathematics
Abstract

This paper is concerned with the stability analysis of a linear system with interval time-varying delay using an augmented Lyapunov–Krasovskii (LK) functional approach. A delay-dependent stability ...

Published
2018

47. On decentralized integral controllability of stable negative-imaginary systems and some related extensions

Author

Parijat Bhowmick and Sourav Patra

Subjects
0209 industrial biotechnology, Interconnection, 02 engineering and technology, Positive-definite matrix, Topology, Stability (probability), Controllability, Matrix (mathematics), 020901 industrial engineering & automation, 020401 chemical engineering, Control and Systems Engineering, Integrator, 0204 chemical engineering, Electrical and Electronic Engineering, Constant (mathematics), Eigenvalues and eigenvectors, Mathematics
Abstract

This paper exploits the decentralized integral controllability (DIC) of stable negative-imaginary (NI) systems with non-singular DC-gain matrix to develop a constant input tracking framework with failure tolerance property in the event of sensor and/or actuator faults. By virtue of the DIC property of NI systems, it is shown that a positive feedback interconnection of two NI systems, of which one is a decentralized integrator system with non-negative gains and the other one is a stable NI system having negative definite DC-gain matrix, is internally stable. This is in contrast to the existing results where, for internal stability, at least one of the systems needs to be strictly negative-imaginary (SNI). Further it is shown that, in a positive feedback interconnection, stable NI systems with negative definite DC-gain matrix exhibit integral controllability (IC) property for any positive value of the integral gain k , which is a distinct property of stable NI systems having negative definite DC-gain matrix since the existing notion of IC for LTI systems offers only a finite range of k . Using the DIC property and the eigenvalue loci technique, some new results and research directions for the NI systems have also been presented in this paper.

Published
2018

48. Static Output-Feedback Stabilization for MIMO LTI Positive Systems using LMI-based Iterative Algorithms

Author

Sabyasachi Bhattacharyya and Sourav Patra

Subjects
0209 industrial biotechnology, Control and Optimization, Computer science, Iterative method, Linear system, MIMO, 02 engineering and technology, Positive-definite matrix, Positive systems, 020901 industrial engineering & automation, Control and Systems Engineering, Linearization, 0202 electrical engineering, electronic engineering, information engineering, Riccati equation, Symmetric matrix, 020201 artificial intelligence & image processing, Algorithm
Abstract

This letter proposes two iterative algorithms for solving static output feedback stabilization problem for LTI multi-input multi-output systems. Contrary to the existing literature, in this letter, no restrictive assumption has been made on the state-space description of the open-loop plant for which a static output feedback controller is to be designed to synthesize a stable internally positive system in closed-loop. Algorithm 1 involves the cone complementarity linearization technique to overcome the underlying difficulties of BMI problem, whereas the success of Algorithm 2 depends on a scalar search associated with a positive definite matrix obtained as the stabilizing solution of a Riccati equation. Numerical examples show that, in some cases where the existing algorithms fail, the proposed algorithms can find a static output feedback stabilizing controller ensuring the positive system properties.

Published
2018

49. Stability analysis and controller design for Lur'e system with hysteresis nonlinearities: a negative-imaginary theory based approach

Author

Arnab Dey, Siddhartha Sen, and Sourav Patra

Subjects
Controller design, Lyapunov function, 0209 industrial biotechnology, Quantitative Biology::Molecular Networks, 02 engineering and technology, Stability (probability), Computer Science Applications, Theory based, Nonlinear system, Hysteresis, symbols.namesake, 020901 industrial engineering & automation, Control and Systems Engineering, Control theory, 0202 electrical engineering, electronic engineering, information engineering, symbols, 020201 artificial intelligence & image processing, Absolute stability, Positive feedback, Mathematics
Abstract

In this paper, absolute stability condition is investigated when a hysteresis nonlinearity is connected to a linear subsystem via positive feedback in Lur'e system framework. In particular, the non...

Published
2018

50. Anti-windup compensator design using Riccati inequality based approach ⁎ ⁎The first and third authors gratefully acknowledge the financial support of the Science and Engineering Research Board (SERB), Department of Science and Technology, India, under the research grant SB/FTP/ETA-263/2012

Author

Parijat Bhowmick, Triparna Ghosh, and Sourav Patra

Subjects
Lyapunov stability, 0209 industrial biotechnology, Transfer function matrix, Computer science, MIMO, 02 engineering and technology, 020901 industrial engineering & automation, Control and Systems Engineering, Control theory, Control system, 0202 electrical engineering, electronic engineering, information engineering, 020201 artificial intelligence & image processing, Saturation (chemistry), Riccati inequality, Anti windup
Abstract

This paper presents a full-order dynamic anti-windup compensation design scheme for stable LTI systems using a Riccati inequality based approach. The scheme utilizes the Weston-Postlethwaite’s generalized anti-windup configuration and applies right coprime factorization of the plant transfer function matrix to obtain a linear conditioning scheme. The proposed anti-windup scheme ensures the internal stability of the closed-loop control system in presence of actuator saturation and also reduces the performance degradation caused by the saturation phenomena. The Riccati inequality based approach offers a simple and straightforward anti-windup compensator design method which is independent of the design of nominal controller. The effectiveness of the proposed technique is demonstrated through a MIMO example.

Published
2018

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