An adaptive sliding mode control system and its application to real‐time hybrid simulation

2021 ◽  
Author(s):  
HongWei Li ◽  
Amin Maghareh ◽  
Johnny Wilfredo Condori Uribe ◽  
Herta Montoya ◽  
Shirley J. Dyke ◽  
...  
Keyword(s):  
Control System ◽  
Sliding Mode Control ◽  
Real Time ◽  
Sliding Mode ◽  
Hybrid Simulation ◽  
Adaptive Sliding Mode Control ◽  
Adaptive Sliding Mode ◽  
Mode Control

scholarly journals Adaptive Sliding Mode Control Based on Disturbance Observer for Placement Pressure Control System

Symmetry ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1057 ◽  
Author(s):  
Qi Hong ◽  
Yaoyao Shi ◽  
Zhen Chen
Keyword(s):  
Control System ◽  
Sliding Mode Control ◽  
Disturbance Observer ◽  
Volume Fraction ◽  
Sliding Mode ◽  
Estimation Error ◽  
Adaptive Sliding Mode Control ◽  
Void Content ◽  
Adaptive Sliding Mode ◽  
Mode Control

In the process of composite placement, irregularity and asymmetry pressure fluctuation will affect the density and evenness of composite products, which lead to the inconsistency of interfacial strength and fiber volume fraction. The dynamic performance of placement pressure systems will be affected by external disturbance, mechanism friction and measurement noise. In this paper, an adaptive sliding mode control (ASMC) strategy based on disturbance observer (DOB) is proposed. The disturbance observer is introduced to estimate the equivalent disturbance torque, and the estimation error is compensated by the switching term of sliding mode control. The adaptive method is used to ensure that the switching gain is not overestimated, and then the Lyapunov function is used to verify the stability of the closed-loop control system. The experimental results and simulation analysis show that ASMC-DOB has high control accuracy and good robustness. At the same time, the designed algorithm can effectively reduce the void content of composite products.

scholarly journals Adaptive Sliding Mode Control Based on Equivalence Principle and Its Application to Chaos Control in a Seven-Dimensional Power System

2020 ◽  
Vol 2020 ◽  
pp. 1-13 ◽  
Author(s):  
Jiangbin Wang ◽  
Ling Liu ◽  
Chongxin Liu ◽  
Xiaoteng Li
Keyword(s):  
Sliding Mode Control ◽  
Power System ◽  
Design Process ◽  
Equivalence Principle ◽  
Sliding Mode ◽  
Chaotic Oscillation ◽  
Adaptive Sliding Mode Control ◽  
Adaptive Sliding Mode ◽  
Mode Control ◽  
Control Scheme

The main purpose of the paper is to control chaotic oscillation in a complex seven-dimensional power system model. Firstly, in view that there are many assumptions in the design process of existing adaptive controllers, an adaptive sliding mode control scheme is proposed for the controlled system based on equivalence principle by combining fixed-time control and adaptive control with sliding mode control. The prominent advantage of the proposed adaptive sliding mode control scheme lies in that its design process breaks through many existing assumption conditions. Then, chaotic oscillation behavior of a seven-dimensional power system is analyzed by using bifurcation and phase diagrams, and the proposed strategy is adopted to control chaotic oscillation in the power system. Finally, the effectiveness and robustness of the designed adaptive sliding mode chaos controllers are verified by simulation.

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