Stability and Performance Analysis of Control Systems Subject to Bursts of Deadline Misses
Vreman, Nils LU ; Cervin, Anton LU
and Maggio, Martina
LU
(2021)
33rd Euromicro Conference on Real-Time Systems (ECRTS 2021)
196.
- Abstract
- Control systems are by design robust to various disturbances, ranging from noise to unmodelled dynamics. Recent work on the weakly hard model---applied to controllers---has shown that control tasks can also be inherently robust to deadline misses. However, existing exact analyses are limited to the stability of the closed-loop system. In this paper we show that stability is important but cannot be the only factor to determine whether the behaviour of a system is acceptable also under deadline misses. We focus on systems that experience bursts of deadline misses and on their recovery to normal operation. We apply the resulting comprehensive analysis (that includes both stability and performance) to a Furuta pendulum, comparing simulated... (More)
- Control systems are by design robust to various disturbances, ranging from noise to unmodelled dynamics. Recent work on the weakly hard model---applied to controllers---has shown that control tasks can also be inherently robust to deadline misses. However, existing exact analyses are limited to the stability of the closed-loop system. In this paper we show that stability is important but cannot be the only factor to determine whether the behaviour of a system is acceptable also under deadline misses. We focus on systems that experience bursts of deadline misses and on their recovery to normal operation. We apply the resulting comprehensive analysis (that includes both stability and performance) to a Furuta pendulum, comparing simulated data and data obtained with the real plant. We further evaluate our analysis using a benchmark set composed of 133 systems, which is considered representative of industrial control plants. Our results show the handling of the control signal is an extremely important factor in the performance degradation that the controller experiences---a clear indication that only a stability test does not give enough indication about the robustness to deadline misses. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/6d8e5a84-c009-4993-b670-b976dedabd1a
- author
- Vreman, Nils
LU
; Cervin, Anton
LU
and Maggio, Martina
LU
- organization
- publishing date
- 2021-06-30
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Control Systems, Fault Tolerance, Weakly Hard Task Model
- host publication
- 33rd Euromicro Conference on Real-Time Systems (ECRTS 2021)
- volume
- 196
- publisher
- Schloss Dagstuhl - Leibniz-Zentrum für Informatik
- conference name
- 33rd Euromicro Conference on Real-Time Systems (ECRTS 2021)
- conference dates
- 2021-07-05 - 2021-07-09
- external identifiers
-
- scopus:85114964111
- DOI
- 10.4230/LIPIcs.ECRTS.2021.15
- project
- Towards Adaptively Morphing Embedded Systems
- language
- English
- LU publication?
- yes
- id
- 6d8e5a84-c009-4993-b670-b976dedabd1a
- date added to LUP
- 2021-04-28 07:46:20
- date last changed
- 2023-04-15 02:46:04
@inproceedings{6d8e5a84-c009-4993-b670-b976dedabd1a,
abstract = {{Control systems are by design robust to various disturbances, ranging from noise to unmodelled dynamics. Recent work on the weakly hard model---applied to controllers---has shown that control tasks can also be inherently robust to deadline misses. However, existing exact analyses are limited to the stability of the closed-loop system. In this paper we show that stability is important but cannot be the only factor to determine whether the behaviour of a system is acceptable also under deadline misses. We focus on systems that experience bursts of deadline misses and on their recovery to normal operation. We apply the resulting comprehensive analysis (that includes both stability and performance) to a Furuta pendulum, comparing simulated data and data obtained with the real plant. We further evaluate our analysis using a benchmark set composed of 133 systems, which is considered representative of industrial control plants. Our results show the handling of the control signal is an extremely important factor in the performance degradation that the controller experiences---a clear indication that only a stability test does not give enough indication about the robustness to deadline misses.}},
author = {{Vreman, Nils and Cervin, Anton and Maggio, Martina}},
booktitle = {{33rd Euromicro Conference on Real-Time Systems (ECRTS 2021)}},
keywords = {{Control Systems; Fault Tolerance; Weakly Hard Task Model}},
language = {{eng}},
month = {{06}},
publisher = {{Schloss Dagstuhl - Leibniz-Zentrum für Informatik}},
title = {{Stability and Performance Analysis of Control Systems Subject to Bursts of Deadline Misses}},
url = {{https://lup.lub.lu.se/search/files/143733241/ecrts21.pdf}},
doi = {{10.4230/LIPIcs.ECRTS.2021.15}},
volume = {{196}},
year = {{2021}},
}