Periodic behavior of equivalent control based discrete sliding-mode controller

This paper introduces a sliding mode control (SMC) based equivalent control method to a novel high output gain Cuk converter. An additional inductor and capacitor improves the efficiency and output gain of the classical Cuk converter. Classical PI controllers are widely used in DC-DC converters. However, it is a very challenging task to design a single PI controller operating in different load and disturbances. SMC based equivalent control method which achieves a robust operation in a wide operation range is also proposed. Switching frequency is kept constant in appropriate interval in different loading and disturbance conditions by implementing a dynamic hysteresis control method. Numerical simulations conducted on Matlab/Simulink confirm the accuracy of analytical analysis of high output gain modified Cuk converter. In addition, proposed equivalent control method is validated in different perturbations to demonstrate the robust operation in wide operation range.

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Stability of equivalent control based discrete sliding mode controller

10.1109/iccas.2007.4406818 ◽

2007 ◽

Author(s):

Dong-Jun Kim ◽

Moon-Ho Son ◽

Kang-Bak Park

Keyword(s):

Sliding Mode ◽

Sliding Mode Controller ◽

Equivalent Control

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Adaptive Fuzzy PI-Sliding Mode Controller for Induction Motor Speed Control

International Journal of Emerging Electric Power Systems ◽

10.2202/1553-779x.1084 ◽

2005 ◽

Vol 4 (1) ◽

Cited By ~ 6

Author(s):

Abdeldjebar Hazzab ◽

Bousserhane Ismail Khalil ◽

Mokhtar Kamli ◽

Mostefa Rahli

Keyword(s):

Induction Motor ◽

High Performance ◽

Sliding Mode ◽

Speed Control ◽

Control Action ◽

Sliding Mode Controller ◽

Motor Speed ◽

Adaptive Fuzzy ◽

Adaptive Sliding Mode Controller ◽

Equivalent Control

In this paper, an adaptive fuzzy PI-sliding mode control (AFPISMC) is proposed for induction motor (IM) speed control. First, an adaptive sliding-mode controller (APISMC) with a proportional plus integral equivalent control action is investigated, in which a simple adaptive algorithm is utilized for generalised soft-switching parameters. The proposed control design uses the fuzzy logic techniques to dynamically control parameter settings of the SMC equivalent control action. The theoretical analyses for the proposed fuzzy PI-sliding-mode controller are described in detail. Simulated results show that the proposed controller provides high-performance dynamic characteristics and is robust with regard to plant parameter variations and external load disturbance.

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Sliding Mode Control for Spacecraft Large Angel Attitude Control with Fuel Sloshing

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.670-671.683 ◽

2014 ◽

Vol 670-671 ◽

pp. 683-686

Author(s):

Xiao Juan Song ◽

Bao Zeng Yue

Keyword(s):

Attitude Control ◽

Control Method ◽

Sliding Mode ◽

Optimal Controller ◽

Simplified Model ◽

Sliding Mode Controller ◽

Attitude Maneuver ◽

Equivalent Control ◽

Fuzzy Sliding Mode ◽

Perturbation Parameters

This paper presents the analysis of the spacecraft with fuel sloshing during attitude maneuver. The fuzzy sliding mode controller is designed for a simplified model of the spacecraft. The controller includes an equivalent control term, a sliding controller, and an optimal controller by adaptive fuzzy algorithm for perturbation parameters. Extensively numerical simulations are carried to verify effect of the control method in this paper and the numerical results show the good performance and better effectiveness for the fuel-filled spacecraft large attitude maneuver.

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