Describing function analysis of second-order sliding mode observers

Boiko, Igor; Castellanos, M. I.

doi:10.1080/00207720701620118

Cited by 9 publications

(1 citation statement)

References 19 publications

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“…Algorithm (88) is similar to the generalized suboptimal algorithm used to generate a second order sliding mode control in systems with a relative degree of two [16]. However, MRFT normally involves lagged switching and is aimed at exciting oscillations [16], while the generalized suboptimal algorithm is aimed at driving the system states to zero, which is achieved through advance switching. The system is applied with the reference signal r(t) set to zero.…”

Section: Tuning Through Modified Relay Feedback Test (Mrft)mentioning

confidence: 99%

Design of gain scheduling control strategy for artificial gas lift in oil production through modified relay feedback test

Hussein¹,

Al‐Durra²,

Boiko³

2015

Journal of the Franklin Institute

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Section: Tuning Through Modified Relay Feedback Test (Mrft)mentioning

confidence: 99%

Design of gain scheduling control strategy for artificial gas lift in oil production through modified relay feedback test

Hussein¹,

Al‐Durra²,

Boiko³

2015

Journal of the Franklin Institute

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Sliding Mode Enforcement after 1990: Main Results and Some Open Problems

Fridman

2011

Lecture Notes in Control and Information Sciences

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Sensorless fault tolerant control for induction motors

Djeghali

Ghanes

Djennoune

et al. 2013

Int. J. Control Autom. Syst.

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In this paper, a sensorless fault tolerant controller for induction motors is developed. In the proposed approach, a robust controller based on backstepping strategy is designed in order to compensate both the load torque disturbance and the rotor resistance variations caused by the broken rotor bars faults. The proposed approach needs neither fault detection and isolation schemes nor controller reconfiguration. Moreover, to avoid the use of speed and flux sensors, a second order sliding mode observer is used to estimate the flux and the speed. The used observer converges in finite time and permits to give good estimates of flux and speed even in presence of rotor resistance variations and load torque disturbance. Since the used observer converges in finite time, the stability of the closed-loop system (controller + observer) is shown in two steps. First, the boundedness of the closed-loop system trajectories before the convergence of the observer is proved. Second, the convergence of the closed-loop system trajectories is proved after the convergence of the observer. To highlight the efficiency and applicability of the proposed control scheme, simulation and experimental results are conducted for a 1.5kW induction motor.

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Describing function analysis of second-order sliding mode observers

Cited by 9 publications

References 19 publications

Design of gain scheduling control strategy for artificial gas lift in oil production through modified relay feedback test

Design of gain scheduling control strategy for artificial gas lift in oil production through modified relay feedback test

Sliding Mode Enforcement after 1990: Main Results and Some Open Problems

Sensorless fault tolerant control for induction motors

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