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Chattering-Free Simulation for Hybrid Dynamical Systems : Semantics and Prototype Implementation

Aljarbouh, Ayman, Zeng, Yingfu, Duracz, Adam, Caillaud, Benoît, Taha, Walid
2016

Konferensbidrag (Refereegranskat)

Abstract:

Chattering is a fundamental phenomenon that is unique to hybrid systems, due to the complex interaction between discrete dynamics (in the form of discrete transitions) and continuous dynamics (in the form of time). In practice, simulating chattering hybrid systems is challenging in that simulation effectively halts near the chattering time point, as an infinite number of discrete transitions would need to be simulated. In this paper, formal conditions are provided for when the simulated models of hybrid systems display chattering behavior, and methods are proposed for avoiding chattering “on the fly” in runtime. We utilize dynamical behavior analysis to derive conditions for detecting chattering without enumeration of modes. We also present a new iterative algorithm to allow for solutions to be carried past the chattering point, and we show by a prototypical implementation how to generate the equivalent chattering-free dynamics internally by the simulator in the main simulation loop. The concepts are illustrated with examples throughout the paper. © 2016 IEEE.

Nyckelord: Hybrid systems; Numerical simulations; Chattering execution; Modeling and simulation; Model verification and completeness

Citera: Aljarbouh, Ayman, Zeng, Yingfu, Duracz, Adam, Caillaud, Benoît & Taha, Walid, Chattering-Free Simulation for Hybrid Dynamical Systems: Semantics and Prototype Implementation, 2016 IEEE Intl Conference on Computational Science and Engineering (CSE) and IEEE Intl Conference on Embedded and Ubiquitous Computing (EUC) and 15th Intl Symposium on Distributed Computing and Applications for Business Engineering (DCABES)., s. 412-422, 2016