Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Maris Tõnso"'
Publikováno v:
Energy Reports, Vol 10, Iss , Pp 2918-2930 (2023)
Many nonlinear physical phenomena, including various power systems, can be modeled, analyzed, and controlled using the framework of port-Hamiltonian systems. Moreover, this framework can offer more advanced methods to cope with modern challenges in t
Externí odkaz:
https://doaj.org/article/895a80240f3542bbb365ed988742f0cb
Autor:
Zbigniew Bartosiewicz, Ülle Kotta, Tanel Mullari, Maris Tõnso, Ewa Pawluszewicz, Małgorzata Wyrwas
Publikováno v:
Nonlinear Analysis, Vol 21, Iss 4 (2016)
The backward shift and nabla derivative operators, defined by the control system on homogeneous time scale, in vector spaces of one-forms and vector fields are introduced and some of their properties are proven. In particular the formulas for compone
Externí odkaz:
https://doaj.org/article/8004b24f56734b539fcc8414ce61e91d
Publikováno v:
Algebraic and Symbolic Computation Methods in Dynamical Systems
Algebraic and Symbolic Computation Methods in Dynamical Systems, 9, Springer, pp.4-52, 2020, Advances in Delays and Dynamics, 978-3-030-38355-8
Algebraic and Symbolic Computation Methods in Dynamical Systems ISBN: 9783030383558
Algebraic and Symbolic Computation Methods in Dynamical Systems, 9, Springer, pp.4-52, 2020, Advances in Delays and Dynamics, 978-3-030-38355-8
Algebraic and Symbolic Computation Methods in Dynamical Systems ISBN: 9783030383558
International audience; The purpose of this chapter is to present a survey on the effective algebraic analysis approach to linear systems theory with applications to control theory and mathematical physics. In particular, we show how the combination
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96f71c0ef75820ce207539b337fee5f7
https://hal.archives-ouvertes.fr/hal-02436985
https://hal.archives-ouvertes.fr/hal-02436985
Publikováno v:
IEEE Control Systems Letters. 2:369-374
In this letter the problem of transforming a nonlinear multi-input multi-output time-delay control system, described by a set of higher order functional differential equations relating system inputs and outputs, into a set of first order functional d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b97fc4de5ce32035d48bca79c019a756
https://doi.org/10.1109/lcsys.2018.2838456
https://doi.org/10.1109/lcsys.2018.2838456
Publikováno v:
International Journal of Applied Mathematics and Computer Science, Vol 27, Iss 3, Pp 539-548 (2017)
Input-output linearization by state feedback is applied to a flux-controlled active magnetic bearing (AMB) system, operated in the zero-bias mode. Two models of the AMB system are employed. The first one is described by the third-order dynamics with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b88a23a7145f59bd3f93860f75f54e1c
https://doi.org/10.1515/amcs-2017-0038
https://doi.org/10.1515/amcs-2017-0038
Autor:
Ülle Kotta, Maris Tõnso
Publikováno v:
IFAC-PapersOnLine. 50:681-686
The paper describes a symbolic computation software package NLControl, dedicated to the study of various modelling, analysis, synthesis problems for nonlinear control systems. Most of the developed functions are based on algebraic approach of differe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16b6e9da99d39fb522f716b1a16d8428
https://doi.org/10.1016/j.ifacol.2017.08.122
https://doi.org/10.1016/j.ifacol.2017.08.122
Publikováno v:
Systems & Control Letters. 98:8-13
An algebraic formalism for nonlinear control systems defined on homogeneous time scales is introduced. This formalism is based on the forward, backward shifts, delta and nabla operators of differential one-forms and vector fields. The accessibility c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb7a691c24575309054b61bc63f3a6e8
https://doi.org/10.1016/j.sysconle.2016.09.018
https://doi.org/10.1016/j.sysconle.2016.09.018
Autor:
Ülle Kotta, Maris Tõnso
Publikováno v:
International Journal of Control. 90:1951-1956
In this paper, the realisation problem of linear multi-input multi-output, time-varying systems is studied. The approach, based on the theory of non-commutative polynomial rings, yields explicit and simple formulas for computation of the state coordi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb3eae0261209c24b681b1ec339cdc34
https://doi.org/10.1080/00207179.2016.1230891
https://doi.org/10.1080/00207179.2016.1230891
Publikováno v:
Automatica
Automatica, Elsevier, 2018, 95, pp.207-212. ⟨10.1016/j.automatica.2018.05.007⟩
Automatica, Elsevier, 2018, 95, pp.207-212. ⟨10.1016/j.automatica.2018.05.007⟩
International audience; The nonlinear realization theory is recasted for time-varying single-input single-output nonlinear systems. The concept of realization has been extended to cover also the realizations with order greater than the order of input
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2863c814a1b006d8745a7b05fc5a6f1e
https://hal.archives-ouvertes.fr/hal-01867149
https://hal.archives-ouvertes.fr/hal-01867149
Publikováno v:
Automatica. 58:67-71
This paper addresses two related topics. First, a nonrealizable set of input-output equations can be made realizable in the classical state space form by adding a postcompensator whereas this is impossible in the continuous-time case. Construction of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8f8c79075d5dbd781741c840c87053d
https://doi.org/10.1016/j.automatica.2015.05.007
https://doi.org/10.1016/j.automatica.2015.05.007