Pregled bibliografske jedinice broj: 867162
Frequency-shifting-based stable on-line algebraic parameter identification of linear systems
Frequency-shifting-based stable on-line algebraic parameter identification of linear systems // Journal of the Franklin Institute, 355 (2018), 18; 9224-9244 doi:10.1016/j.jfranklin.2017.03.008 (međunarodna recenzija, članak, znanstveni)
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Naslov
Frequency-shifting-based stable on-line algebraic parameter identification of linear systems
Autori
Kasać, Josip ; Žilić, Tihomir ; Milić, Vladimir ; Jokić, Andrej
Izvornik
Journal of the Franklin Institute (0016-0032) 355
(2018), 18;
9224-9244
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Algebraic identification ; Parameter identification ; Linear systems ; Operational calculus
Sažetak
In this paper a new approach to algebraic parameter identification of the linear SISO systems is proposed. The standard approach to the algebraic parameter identification is based on the algebraic derivatives in Laplace domain as the main tool for algebraic manipulations like elimination of the initial conditions and generation of linearly independent equations. This approach leads to the unstable time-varying state-space realization of the filters for the on-line parameter estimation. In this paper, the finite difference and shift operators in combination with the frequency-shifting property of Laplace transform is applied instead of algebraic derivatives. Resulting state-space realization of the estimator filters is asymptotically stable and doesn’t require switch-of mechanism to prevent overflow of the estimator variables. The proposed method is especially suitable for applications in closed-loop on-line identification where the stable behavior of the estimators is a necessary requirement. The efficiency of the proposed algorithm is illustrated on three simulation examples.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
POVEZANOST RADA
Projekti:
HRZZ-UIP-2013-11-9354 - Upravljanje prostorno distribuiranim dinamičkim sustavima (ConDis) (Jokić, Andrej, HRZZ - 2013-11) ( CroRIS)
Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus