Design of structured dynamic output-feedback controllers for interconnected systems

Schuler, Simone; Li, Ping; Lam, James; Allgöwer, Frank

doi:10.1080/00207179.2011.634029

Cited by 56 publications

(38 citation statements)

References 19 publications

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“…This question has been recently addressed by some researchers in [28,29,30,31,32]. They have focused on the problem of sparse static output/state feedback controller design where the gain between the subsystems' inputs and outputs/states is sparsified [28,29,30,31].…”

Section: Introductionmentioning

confidence: 99%

“…In this way, the amount of information exchange between subsystems and the controller is reduced. The results of [28] is extended to sparse dynamic output control design in [32]. However, in [32] some parts of the controller structure, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…The results of [28] is extended to sparse dynamic output control design in [32]. However, in [32] some parts of the controller structure, i.e. the structure of matrices A c , B c , and C c , have been specified a priori.…”

Section: Introductionmentioning

confidence: 99%

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Fixed-order decentralized/distributed control of islanded inverter-interfaced microgrids

Sadabadi

Karimi

2015

Control Engineering Practice

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This paper focuses on the problem of voltage control of islanded inverterinterfaced microgrids consisting of several distributed generation (DG) units with parallel structure. The main objectives are to (i) design a decentralized/distributed voltage controller with minimum information exchange between DG units and their local controllers (ii) design a fixed-/low-order dynamic output feedback controller which ensures stability as well as desired performance of the microgrid system in spite of load parameter uncertainties. To this end, the problem is formulated as an optimization problem which is the minimization of the cardinality of a pattern matrix subject to an H ∞ performance constraint. Since the problem is intrinsically non-convex, a convex design procedure for the controller synthesis is proposed in this paper. The effectiveness of the proposed controller is evaluated through simulation studies and Hardware-In-the-Loop (HIL) verifications. The simulation and experimental results demonstrate that the effectiveness of the proposed control strategy.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fixed-order decentralized/distributed control of islanded inverter-interfaced microgrids

Sadabadi

Karimi

2015

Control Engineering Practice

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“…Firstly, the problem formulation in this manuscript is substantially different from the ones used for sparsely distributed state feedback (SF) and static output feedback in the literature (e.g. [21,23,24,22,14,15,16]), in that we originally aimed at using SMC strategy and as a result the problem formulation is very different (please see the system matrices in (24)). Note also that the sparse SF obtained using the method in [14] may not necessarily be a feasible solution to the SMC problem [5].…”

Section: )mentioning

confidence: 99%

“…Recently, the issue of designing a control network with minimum communication links has been studied in the literature [21,23,24,22,14,15,16]. As an illustration, [14] proposes a non-convex condition which is solved numerically by exploiting a convex reweighted 1 norm approximation.…”

Section: Introductionmentioning

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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H_∞ filtering of discrete‐time interconnected systems with failed interconnections

ChenYuzhi

WuChun‐Yu

Xuning

et al. 2020

Adaptive Control & Signal

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The H ∞ filtering problem for interconnected systems is addressed in this paper. In order to facilitate the stability analysis of interconnected systems under the conditions of failed interconnections, a strategy related to switched systems is introduced. Assume that the interconnections among these subsystems disconnect based on the mode-dependent average dwell time (MDADT), a switching signal is implemented to denote the failed interconnections cases. In the aid of the MDADT method, a filter is designed such that the fault detection (FD) system is asymptotically stable and satisfies the weighted H ∞ performance. Finally, a numerical simulation is provided to show the effectiveness of the proposed filter.

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Design of structured dynamic output-feedback controllers for interconnected systems

Cited by 56 publications

References 19 publications

Fixed-order decentralized/distributed control of islanded inverter-interfaced microgrids

Fixed-order decentralized/distributed control of islanded inverter-interfaced microgrids

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

H_∞ filtering of discrete‐time interconnected systems with failed interconnections

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Design of structured dynamic output-feedback controllers for interconnected systems

Cited by 56 publications

References 19 publications

Fixed-order decentralized/distributed control of islanded inverter-interfaced microgrids

Fixed-order decentralized/distributed control of islanded inverter-interfaced microgrids

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

H∞ filtering of discrete‐time interconnected systems with failed interconnections

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H_∞ filtering of discrete‐time interconnected systems with failed interconnections