Decentralized robust control of multiple static var compensators via Hamiltonian function method

Liu, Yanhong; Li, Jianyong; Chu, Bing; Honghai, Tang; Zhang, Lijun

doi:10.1007/s11768-013-1080-8

Cited by 1 publication

(1 citation statement)

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“…Additionally, in many prior works, the result of the decentralized control approaches is formulated within the algebraic Riccati equation (Tummala et al , 2018) or the Hamiltonian function method (Liu et al , 2013), which may be difficult to resolve and cannot readily wield various types of supplementary constraints. Moreover, the proposed control approach does not settle specific values for the interconnection function bounds but it looks for their maximization.…”

Section: Introductionmentioning

confidence: 99%

Dynamic output feedback control for nonlinear large-scale interconnected systems

Touti

Tlili

Almutiry

2020

COMPEL

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Purpose This paper aims to focus on the design of a decentralized observation and control method for a class of large-scale systems characterized by nonlinear interconnected functions that are assumed to be uncertain but quadratically bounded. Design/methodology/approach Sufficient conditions, under which the designed control scheme can achieve the asymptotic stabilization of the augmented system, are developed within the Lyapunov theory in the framework of linear matrix inequalities (LMIs). Findings The derived LMIs are formulated under the form of an optimization problem whose resolution allows the concurrent computation of the decentralized control and observation gains and the maximization of the nonlinearity coverage tolerated by the system without becoming unstable. The reliable performances of the designed control scheme, compared to a distinguished decentralized guaranteed cost control strategy issued from the literature, are demonstrated by numerical simulations on an extensive application of a three-generator infinite bus power system. Originality/value The developed optimization problem subject to LMI constraints is efficiently solved by a one-step procedure to analyze the asymptotic stability and to synthesize all the control and observation parameters. Therefore, such a procedure enables to cope with the conservatism and suboptimal solutions procreated by optimization problems based on iterative algorithms with multi-step procedures usually used in the problem of dynamic output feedback decentralized control of nonlinear interconnected systems.

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Section: Introductionmentioning

confidence: 99%