A theory of discontinuities in physical system models

Mosterman, Pieter J.; Biswas, Gautam

doi:10.1016/s0016-0032(96)00126-3

Cited by 116 publications

(113 citation statements)

References 8 publications

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“…Such property holds since the switching cannot cause any increase in the total amount of charge or flux stored in the system and thus the value of the state after the switch is uniquely determined by the state before the switch. On this issue, see [13] where the analysis of a wide variety of physical systems exhibiting discontinuities is presented, and [4], [5], [18]. In the rest of this paper we assume that the gluing conditions are well-posed.…”

Section: A Switched Linear Differential System Model For the Conmentioning

confidence: 99%

A systematic approach to constant power load stabilization by passive damping

Mayo-Maldonado

Rapisarda

2015

2015 54th IEEE Conference on Decision and Control (CDC)

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Section: A Switched Linear Differential System Model For the Conmentioning

confidence: 99%

A systematic approach to constant power load stabilization by passive damping

Mayo-Maldonado

Rapisarda

2015

2015 54th IEEE Conference on Decision and Control (CDC)

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“…Our component-based hybrid system models are built using the hybrid bond graph (HBG) modeling language [Mosterman and Biswas, 1998]. HBGs are particularly suitable for diagnosis because they incorporate causal and temporal information required for deriving and analyzing fault transients, and allow automatic generation of simulation models, observers, and diagnosis models [Narasimhan and Biswas, 2007].…”

Section: Modelingmentioning

confidence: 99%

Comprehensive Diagnosis of Complex Electrical Power Distribution Systems

Roychoudhury

Daigle

Biswas

et al. 2009

IFAC Proceedings Volumes

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Electrical power distribution systems are composed of heterogeneous components, which include continuous power sources, discrete relays, passive and active loads, and fastswitching power conversion subsystems. This heterogeneity introduces significant challenges for model-based diagnosis, such as building accurate models, and generating fast and accurate diagnoses while ensuring robustness to measurement noise and modeling errors. In this paper, we present a comprehensive methodology for the diagnosis of parametric and discrete faults in electrical power distribution systems that include dc and ac components. We use a hybrid bond graph modeling language to systematically develop computational models and algorithms for hybrid state estimation, robust fault detection, and efficient fault isolation. Simulation and experimental results on a real-world electrical power distribution system demonstrate the effectiveness of our methodology.

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“…These systems cover multiple physical domains, and operate at multiple time scales. An effective way to describe the behavior of the controlled subsystems is to model them as hybrid dynamic systems [ 16,17]. The rest of this section describes our approach to modeling the lunar habitat and then discusses the hierarchical control scheme implemented for the 90 day lunar mission scenario.…”

Section: Multi-level Model-based Controlmentioning

confidence: 99%

Requirements for an Autonomous Control Architecture for Advanced Life Support Systems

Biswas

Bonasso

Abdelwahed

et al. 2005

SAE Technical Paper Series

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This paper describes a series of life support control experiments at NASA Johnson Space Center and at Vanderbilt University. These experiments involved two distinct, layered control architectures; one used a modelbased approach and the other a procedural approach to control complex, distributed systems. Both sets of experiments produced good results, but it also brought out the strengths and weaknesses of the two underlying technologies. Our goal in this paper is to come up with the requirements for an integrated architecture for autonomous controller design that combines the best of the two approaches. This paper discusses a potential approach to this integration and the advantages it offers.

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A theory of discontinuities in physical system models

Cited by 116 publications

References 8 publications

A systematic approach to constant power load stabilization by passive damping

A systematic approach to constant power load stabilization by passive damping

Comprehensive Diagnosis of Complex Electrical Power Distribution Systems

Requirements for an Autonomous Control Architecture for Advanced Life Support Systems

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