Abstract
In safety critical systems, the control system is composed of a core control system with a fault detection and isolation scheme together with a repair or a recovery strategy. The time that it takes to detect, isolate, and recover from the fault (fault recovery time) is a critical factor in safety of a system. It must be guaranteed that the trajectory of a system subject to fault remains in the region of attraction (ROA) of the post-fault system during this time. This paper proposes a new algorithm to compute the critical fault recovery time for nonlinear systems with
polynomial vector elds using sum of squares programming. The proposed algorithm is based on computation of ROA of the recovered system and nite-time stability of the faulty system.
polynomial vector elds using sum of squares programming. The proposed algorithm is based on computation of ROA of the recovered system and nite-time stability of the faulty system.
| Original language | English |
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| Title of host publication | Proceedings of the 19th IFAC World Congress |
| Number of pages | 6 |
| Publisher | International Federation of Automatic Control |
| Publication date | 2014 |
| Publication status | Published - 2014 |
| Event | 19th World Congress of the International Federation of Automatic Control (IFAC 2014) - Cape Town, South Africa Duration: 24 Aug 2014 → 29 Aug 2014 http://www.ifac2014.org/ |
Conference
| Conference | 19th World Congress of the International Federation of Automatic Control (IFAC 2014) |
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| Country/Territory | South Africa |
| City | Cape Town |
| Period | 24/08/2014 → 29/08/2014 |
| Other | The theme of the congress: “Promoting automatic control for the benefit of humankind” |
| Internet address |