Research output: Contribution to journal › Conference article › peer-review
On robustness of the speed-gradient sampled-data energy control for the sine–Gordon equation: The simpler the better. / Andrievsky, Boris ; Orlov, Yury ; Fradkov, Alexander L.
In: Communications in Nonlinear Science and Numerical Simulation, Vol. 117, 106901, 02.2023.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - On robustness of the speed-gradient sampled-data energy control for the sine–Gordon equation: The simpler the better
AU - Andrievsky, Boris
AU - Orlov, Yury
AU - Fradkov, Alexander L.
N1 - Publisher Copyright: © 2022 Elsevier B.V.
PY - 2023/2
Y1 - 2023/2
N2 - The paper studies robustness with respect to time-sampling of the energy regulation for one-dimensional sine–Gordon system. Such a problem is a new to control of invariants for hyperbolic partial differential equations (PDEs). In the absence of analytic results, the problem is studied numerically. The properties of four sampled-data algorithms are computationally studied with respect to three performance criteria. The four speed gradient algorithms are the “proportional”, “relay”, “adaptive-relay” and combined ones, by using state feedback with in-domain actuators. The three performance criteria are limit error, transient time, and threshold of stability for the sampling interval. An unexpected result is that the best performance for all three criteria was exhibited by the simplest, speed-gradient-proportional, algorithm. Simulation results are also presented for other energy tracking controllers to add insight into the parameter choice for improving the closed-loop robustness in the PDE setting over sampled-data algorithms.
AB - The paper studies robustness with respect to time-sampling of the energy regulation for one-dimensional sine–Gordon system. Such a problem is a new to control of invariants for hyperbolic partial differential equations (PDEs). In the absence of analytic results, the problem is studied numerically. The properties of four sampled-data algorithms are computationally studied with respect to three performance criteria. The four speed gradient algorithms are the “proportional”, “relay”, “adaptive-relay” and combined ones, by using state feedback with in-domain actuators. The three performance criteria are limit error, transient time, and threshold of stability for the sampling interval. An unexpected result is that the best performance for all three criteria was exhibited by the simplest, speed-gradient-proportional, algorithm. Simulation results are also presented for other energy tracking controllers to add insight into the parameter choice for improving the closed-loop robustness in the PDE setting over sampled-data algorithms.
KW - Sine–Gordon equation
KW - Energy regulation
KW - speed-gradient
KW - Time-sampling
KW - In-space actuation
KW - Sampled-data nonlinear systems
KW - Speed-gradient
UR - http://www.scopus.com/inward/record.url?scp=85140140135&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/0b7ac4dc-9c86-3e49-9bb5-f42d6d0f9235/
U2 - 10.1016/j.cnsns.2022.106901
DO - 10.1016/j.cnsns.2022.106901
M3 - Conference article
VL - 117
JO - Communications in Nonlinear Science and Numerical Simulation
JF - Communications in Nonlinear Science and Numerical Simulation
SN - 1007-5704
M1 - 106901
ER -
ID: 99830832