Passivité et limites de secteurs

Analyse de la passivité des systèmes et de leurs limites de secteurs coniques arbitraires

Le contrôle passif fait souvent partie des exigences de sécurité dans des applications telles que le contrôle des processus, le fonctionnement à distance, les interfaces homme-machine et les réseaux de systèmes. La passivité constitue un cas particulier de la notion plus générale de limites sectorielles, dont les applications comprennent la stabilité absolue des systèmes de rétroaction à non-linéarités statiques. Control System Toolbox™ comprend les outils d’analyse des systèmes dynamiques à la fois pour la passivité et les limites sectorielles arbitraires.

Fonctions

`isPassive`	Check passivity of linear systems
`getPassiveIndex`	Compute passivity index of linear system
`passiveplot`	Compute or plot passivity index as function of frequency
`getSectorIndex`	Compute conic-sector index of linear system
`getSectorCrossover`	Crossover frequencies for sector bound
`sectorplot`	Compute or plot sector index as function of frequency
`sectorplotoptions`	Create list of relative index plot options

Rubriques

Passivité

About Passivity and Passivity Indices
A system is passive if it cannot produce energy on its own, and can only dissipate the energy that is stored in it initially. Passive control has applications such as process control, tele-operation, and human-machine interfaces.
Passivity Indices
Compute various measures of passivity for linear time-invariant systems.
Parallel Interconnection of Passive Systems
The parallel interconnection of passive systems is also passive.
Series Interconnection of Passive Systems
The series interconnection of passive systems is not necessarily passive.
Feedback Interconnection of Passive Systems
The feedback interconnection of passive systems is also passive.

Limites sectorielles

About Sector Bounds and Sector Indices
Sector bounds are constraints on the I/O trajectories of a system. Sector indices provide measures of how well a system’s trajectories fit into a particular sector.
Absolute Stability for Quantized System
This example shows how to enforce absolute stability when a linear time-invariant system is in feedback interconnection with a static nonlinearity that belongs to a conic sector.