Decentralized sliding-mode output-feedback control of interconnected discrete-delay systems

Mahmoud, Magdi S.; Qureshi, Aminuddin

doi:10.1016/j.automatica.2012.02.008

Cited by 40 publications

(19 citation statements)

References 11 publications

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“…3.1 H 2 based optimal structured static output feedback Consider the controller in (17) contains only the linear part, hencė…”

Section: Optimal Structured Smc Design Problemmentioning

confidence: 99%

ℋ<inf>2</inf>-based optimal sparse sliding mode control for networked control systems

Argha

et al. 2016

2016 IEEE 55th Conference on Decision and Control (CDC)

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This paper is devoted to the problem of designing a sparsely distributed sliding mode control for networked systems. Indeed, this note employs a distributed sliding mode control framework by exploiting (some of) other subsystems' information to improve the performance of each local controller so that it can widen the applicability region of the given scheme. To do so, different from the traditional schemes in the literature, a novel approach is proposed to design the sliding surface, in which the level of required control effort is taken into account during the sliding surface design based on the H 2 control. We then use this novel scheme to provide an innovative less-complex procedure that explores sparse control networks to satisfy the underlying control objective. Besides, the proposed scheme to design the sliding surface makes it possible to avoid unbounded growth of control effort during the sparsification of the control network structure. Illustrative examples are presented to show the effectiveness of the proposed approach. keywords Networked control systems, H 2 -based optimal sparse sliding mode control, distributed control systems, linear matrix inequality.

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“…3.1 H 2 based optimal structured static output feedback Consider the controller in (17) contains only the linear part, hencė…”

Section: Optimal Structured Smc Design Problemmentioning

confidence: 99%

ℋ<inf>2</inf>-based optimal sparse sliding mode control for networked control systems

Argha

et al. 2016

2016 IEEE 55th Conference on Decision and Control (CDC)

View full text Add to dashboard Cite

show abstract

“…Moreover, when global results are sought, strong conditions are required on the nominal subsystems to satisfy the reachability condition globally when a static output feedback controller is designed, as presented in Yan et al (2009Yan et al ( , 2012) (see Assumption 4 in Yan et al, 2012). This condition was later employed in Mahmoud and Qureshi (2012) for a class of discrete time interconnected systems. How to relax this condition is still an open problem.…”

Section: Decentralised Variable Structure Controlmentioning

confidence: 99%

“…Approaches consider under what conditions the interconnected system has the desired performance if the isolated nominal subsystems have the required performance (see Yan et al, , 2006. A decentralised sliding-mode-based output-feedback control scheme for discrete time systems is available in Mahmoud and Qureshi (2012) which is built on the work in Yan et al (2009). As for the dynamical/observer-based feedback control, the results developed usually have higher robustness and lower conservatism when compared with static output feedback because for dynamical output feedback, not only the output information can be employed in the design but the dynamical information can also be employed.…”

Section: Decentralised Variable Structure Controlmentioning

confidence: 99%

Decentralised control for complex systems - an invited survey

Yan

Zhang

Spurgeon

et al. 2014

IJMIC

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“…When the interconnections are strong, utilizing the distributed control frameworks has been considered to ensure stability of the overall system (Razeghi-Jahromi and Seyedi, 2015). An outstanding research implemented on the sliding mode control (SMC) has been decentralized SMC for the large-scale interconnected systems; see Yan et al (2004Yan et al ( , 2006; Qureshi and Abido (2014); Mahmoud and Qureshi (2012) and the references therein. The distributed SMC has received less attention and hence it requires more investigations.…”

Section: Introductionmentioning

confidence: 99%

Sparse Observer-Based Sliding Mode Control For Networked Control Systems

Argha

et al. 2017

IFAC-PapersOnLine

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This paper is devoted to the problem of designing a sparse distributed output feedback discrete-time sliding mode control (ODSMC) for the networked systems. A distributed structure is employed in the discrete-time sliding mode control framework by exploiting other sub-systems' information to improve the performance of each local controller/observer so that it can widen the applicability region of the given scheme. As the first step, a stability condition is derived for the overall closed-loop system obtained from applying ODSMC to the underlying interconnected system, by assuming a given structure for the control/observer network. In the second step, we explore a methodology to obtain a sparse control/observer network structure with the least possible number of communication links that satisfies the stability condition given in the first step. The boundedness of the obtained overall closed-loop system is analyzed and a bound is derived for the augmented system state which includes the closed-loop system state and the switching function.

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Decentralized sliding-mode output-feedback control of interconnected discrete-delay systems

Cited by 40 publications

References 11 publications

ℋ<inf>2</inf>-based optimal sparse sliding mode control for networked control systems

ℋ<inf>2</inf>-based optimal sparse sliding mode control for networked control systems

Decentralised control for complex systems - an invited survey

Sparse Observer-Based Sliding Mode Control For Networked Control Systems

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