Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Mohsen Ekramian"'
Publikováno v:
The Journal of Engineering, Vol 2024, Iss 7, Pp n/a-n/a (2024)
Abstract This paper proposes a robust distributed observer for uncertain systems where some unknown, unstructured, and bounded uncertainties exist in system matrices. In distributed observer, each node includes an observer which directly estimates a
Externí odkaz:
https://doaj.org/article/5624f4b6bf3148d99fd828a1cb123046
Publikováno v:
Journal of Engineering, Vol 2014 (2014)
Tandem cold rolling process is a nonlinear complex system with external and internal uncertainties and significant disturbances. The improvement in the quality of the final output depends on the control strategy of centerline thickness and interstand
Externí odkaz:
https://doaj.org/article/00e3e01994ed4d3982b26aa66194328f
Autor:
Mohsen Ekramian, Majdeddin Najafi
Publikováno v:
European Journal of Control. 63:206-213
In this paper, a low order asymptotic predictor is introduced for nonlinear systems based on measurable outputs. Predictors play basic role in the control of dead-time systems having no delay-free input. Generalized Lipschitz Condition is employed he
Publikováno v:
IEEE Transactions on Control Systems Technology. 28:1997-2004
This brief considers sliding mode control of hysteresis in piezoelectric actuators. For modeling of hysteresis, the Bouc–Wen model that is based on differential equations is utilized. One of the states of this model is unmeasurable. Therefore, a st
Autor:
Mohsen Ekramian
Publikováno v:
Journal of the Franklin Institute. 357:1457-1472
The output feedback stabilization of Lipschitz nonlinear systems is addressed. The synthesis of reduced-order controller is formulated as static output feedback problem. Based on coupled algebraic Riccati inequalities, the stability analysis of close
Publikováno v:
ISA Transactions. 91:125-134
Asymptotic stabilization of a class of nonlinear systems with known constant long input delay is addressed in the presence of external disturbance by applying sliding mode control method. Modified prediction variable scheme is employed to compensate
Publikováno v:
IET Control Theory & Applications. 13:2047-2055
In this study, stabilisation of input-delay non-linear systems in the presence of disturbance based on prediction variable is studied. For both disturbance estimation and delay compensation, an extended prediction variable as well as adaptive sliding
Publikováno v:
Journal of Optimization Theory and Applications. 180:1036-1064
Many real-world dynamics can be modeled as nonlinear time-delay systems. In order to capture a more realistic model for system dynamics, the exact values of time-delay should be taken into account. For nonlinear time-delay systems, the estimation of
Publikováno v:
International Journal of Systems Science. 49:2784-2796
The mechanical impedance of the human arm can be measured to quantitatively assess the motor function. In this paper, an adaptive least square estimation method is proposed for online measurement o...
Publikováno v:
International Journal of Systems Science. 49:2558-2570
This paper proposes a cascade high-gain observer for a class of triangular nonlinear systems with large and diverse time delays at states and output equation. Compared with some existing re...