2015
DOI: 10.1109/tac.2014.2361004
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Stability Analysis With Dissipation Inequalities and Integral Quadratic Constraints

Abstract: This technical note considers the stability of a feedback connection of a known linear, time-invariant system and a perturbation. The input/output behavior of the perturbation is described by an integral quadratic constraint (IQC). IQC stability theorems can be formulated in the frequency domain or with a time-domain dissipation inequality. The two approaches are connected by a non-unique factorization of the frequency domain IQC multiplier. The factorization must satisfy two properties for the dissipation ine… Show more

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Cited by 142 publications
(188 citation statements)
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“…It is possible to show that LMI and the dissipativity framework can be used to guarantee input‐output stability as in this alternative stability definition. The required steps parallel the continuous‐time result in [, Lemma 1]. It is also noted that related work in incorporates the effect of initial conditions.…”
Section: Preliminariesmentioning
confidence: 71%
See 1 more Smart Citation
“…It is possible to show that LMI and the dissipativity framework can be used to guarantee input‐output stability as in this alternative stability definition. The required steps parallel the continuous‐time result in [, Lemma 1]. It is also noted that related work in incorporates the effect of initial conditions.…”
Section: Preliminariesmentioning
confidence: 71%
“…The upper value of the game is defined as trueJ̄normalΨ,M(ψ0):=infv2nvsupw2nwJnormalΨ,M(v,w,ψ0) The lower value of the game is defined as falseJ_normalΨ,M(ψ0):=supw2nwinfv2nvJnormalΨ,M(v,w,ψ0) The next two lemmas relate the upper and lower values of this open‐loop game to the properties of the IQC factorization (Ψ, M ). The proofs are omitted as they are similar to those used in the continuous‐time counterparts [, Lemma 2, Lemma 3].…”
Section: J‐spectral Factorizations and Related Gamesmentioning
confidence: 99%
“…The relation between dissipativity (and hence Lyapunov methods) and the IQC theorem is beginning to be understood (Willems and Takaba, 2007;Veenman and Scherer, 2013;Seiler, 2015).…”
Section: The Iqc Frameworkmentioning
confidence: 99%
“…Since this paper uses IQCs for the robustness analysis of uncertain grid‐based LPV systems, IQCs also need to be expressed in the time domain. A multiplier normalΠdouble-struckRdouble-struckLfalse(nv+nwfalse)×false(nv+nwfalse) can be factorized as Π=Ψ ∼ M Ψ, where M=MTRnz×nz and normalΨdouble-struckRdouble-struckHnz×false(nv+nwfalse) . The IQC given in Equation can be rewritten as 0zfalse(tfalse)TMzfalse(tfalse)dt0, where z:=normalΨ[]arrayvarraywRnz is the output of the linear system Ψ driven by the input signals v and w starting from zero initial conditions .…”
Section: Introductionmentioning
confidence: 99%
“…A multiplier normalΠdouble-struckRdouble-struckLfalse(nv+nwfalse)×false(nv+nwfalse) can be factorized as Π=Ψ ∼ M Ψ, where M=MTRnz×nz and normalΨdouble-struckRdouble-struckHnz×false(nv+nwfalse) . The IQC given in Equation can be rewritten as 0zfalse(tfalse)TMzfalse(tfalse)dt0, where z:=normalΨ[]arrayvarraywRnz is the output of the linear system Ψ driven by the input signals v and w starting from zero initial conditions . Let Ψ have a state‐space realization given by []arrayx˙normalΨarrayz=[]arrayAnormalΨarrayBΨvarrayBΨwarrayCnormalΨarrayDΨvarrayDΨw[]arrayxnormalΨarrayvarrayw, where xΨRnΨ and x Ψ (0)=0.…”
Section: Introductionmentioning
confidence: 99%