Searched for: subject%3A%22Switched%255C%2Bsystems%22
(1 - 10 of 10)
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Ye, J. (author), Roy, S. (author), Godjevac, Milinko (author), Baldi, S. (author)
Position control for heavy-lift construction vessels is crucial for safe operation during offshore construction. During the various phases of a typical offshore construction assignment, considerable changes in the dynamics of the crane-vessel system occur. Operational hazard was reported if such interchanging dynamics are not properly handled...
journal article 2021
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Tao, T. (author), Roy, S. (author), Baldi, S. (author)
The literature has proven that attaining good transient behavior in leakage-based robust adaptive control of uncertain switched systems is intrinsically challenging. In fact, because the gains of the inactive subsystems must exponentially vanish during inactive times as an effect of leakage action, new learning transients will repeatedly...
journal article 2020
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Roy, S. (author), Kosmatopoulos, Elias B. (author), Baldi, S. (author)
In the presence of unmodelled dynamics and uncertainties with no a priori constant bounds, conventional robust adaptation strategies for switched systems cannot allow the control gains of inactive subsystems to remain constant during inactive intervals: vanishing gains are typically required in order to prove bounded stability. As a...
journal article 2020
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Roy, S. (author), Baldi, S. (author)
This letter proposes a new adaptive control method for a class of nonlinearly-parametrized switched systems that includes Monod kinetics and Euler-Lagrange systems with nonlinear in parameters form as special cases. As compared to the adaptive switched frameworks proposed in literature, the proposed adaptation framework has the distinguishing...
journal article 2019
document
Radhakrishnan, Kaushik (author)
In the year 2050, global anthropogenic radiative forcing from aircraft emissions are projected to increase significantly. Recent studies have considered climate optimized flight trajectories to be a promising measure to mitigate non-CO2 emissions’ environmental impact, which is highly sensitive to locus and time of emissions. Estimating the...
master thesis 2018
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Baldi, S. (author), Papachristodoulou, Antonis (author), Kosmatopoulos, Elias B. (author)
In this work we propose a novel adaptive switching strategy for the design of pulse width modulation signals in power converters. Instead of an uncertain averaged model of the power converter, an uncertain switched model is considered, which can better represent the actual power converter dynamics. Uncertainties in the power converters...
journal article 2018
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Moustakis, N. (author), Yuan, S. (author), Baldi, S. (author)
This paper addresses the problem of asymptotic tracking for switched linear systems with parametric uncertainties and dwell-time switching, when input measurements are quantized due to the presence of a communication network closing the control loop. The problem is solved via a dynamic quantizer with dynamic offset that, embedded in a model...
journal article 2018
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Ghosh, D. (author), Baldi, S. (author)
Several classes of multi-model adaptive control schemes have been proposed in literature: instead of one single parameter-varying controller, in this adaptive methodology multiple fixed-parameter controllers for different operating regimes (i.e. different models) are utilised. Despite advances in multi-model adaptive control theory, the question...
journal article 2017
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Hajiahmadi, M. (author)
Macroscopic modeling, predictive and robust control and route guidance for large-scale freeway and urban traffic networks are the main focus of this thesis. In order to increase the efficiency of our control strategies, we propose several mathematical and optimization techniques. Moreover, in the second part of the thesis, based on the hybrid...
doctoral thesis 2015
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Maggiore, B. (author), Rawn, B.G. (author), Lehn, P. (author)
The problem of determining invariance kernels for planar single-input nonlinear systems is considered. If K is a closed set, its invariance kernel is the largest subset of K with the property of being positively invariant for arbitrary measurable input signals. It is shown that the boundary of the invariance kernel is a concatenation of...
journal article 2012
Searched for: subject%3A%22Switched%255C%2Bsystems%22
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