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Linéarisation et caractérisation des points de fonctionnement

Identifier les points d'état stationnaire et extraire un modèle linéaire d'un système autour d'un point de fonctionnement

Simulink® ne propose que des fonctions basiques pour la linéarisation et la caractérisation des points de fonctionnement . Pour disposer de fonctionnalités complètes dans ces domaines, utilisez Simulink Control Design.

Simulink Control Design™ permet de trouver des points de fonctionnement et de calculer les linéarisations exactes des modèles Simulink dans diverses conditions de fonctionnement. Il propose des outils pour calculer les réponses en fréquence basées sur les simulations sans modifier le modèle.

Fonctions

développer tout

findopSteady-state operating point from specifications (trimming) or simulation
linearizeLinear approximation of Simulink model or subsystem
slLinearizerInterface for batch linearization of Simulink models
trimFind trim point of dynamic system
dlinmodExtract discrete-time linear state-space model around operating point
linmodExtract continuous-time linear state-space model around operating point using block by block linearization algorithm
linmod2Extract continuous-time linear state-space model around operating point using algorithm that reduces truncation error
linmodv5Extract continuous-time linear state-space model around operating point using full model perturbation algorithm

Blocs

Timed-Based LinearizationGenerate linear models in base workspace at specific times
Trigger-Based LinearizationGenerate linear models in base workspace when triggered
Trigger-Based Operating Point SnapshotGenerate operating points at triggered events

Applications

Model LinearizerLinearize Simulink models

Outils

Control Design Onramp with SimulinkFree, self-paced, interactive Simulink Control Design course (depuis R2020b)

Rubriques

Simulink Control Design

  • Compute Steady-State Operating Points (Simulink Control Design)
    To obtain a steady-state operating point, you can trim your model using numerical optimization techniques or simulate your model until it reaches a steady-state condition.
  • Linearize Nonlinear Models (Simulink Control Design)
    Obtain a linear approximation of a nonlinear system that is valid in a small region around an operating point.
  • Choose Linearization Tools (Simulink Control Design)
    Simulink Control Design software lets you perform linear analysis of nonlinear models using a user interface, functions, or blocks.
  • Linearize Simulink Model at Model Operating Point (Simulink Control Design)
    Linearize a model at its operating point consisting of initial state values and input signals.
  • Linearize at Trimmed Operating Point (Simulink Control Design)
    You can linearize a Simulink model at an operating point that meets specified input, output, or state constraints.

Simulink

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