Improved Reaching Law Sliding Mode Control Algorithm Design For DC Motor Based on Kalman Filter

2014 ◽  
Vol 12 (12) ◽  
Author(s):  
Li Liu
Keyword(s):  
Kalman Filter ◽  
Sliding Mode Control ◽  
Control Algorithm ◽  
Sliding Mode ◽  
Algorithm Design ◽  
Dc Motor ◽  
Reaching Law ◽  
Mode Control

Terminal sliding mode control of permanent magnet synchronous motor based on the reaching law

2019 ◽  
Vol 234 (7) ◽  
pp. 849-859
Author(s):  
Peikun Zhu ◽  
Yong Chen ◽  
Meng Li
Keyword(s):  
Sliding Mode Control ◽  
Permanent Magnet ◽  
Parameter Uncertainty ◽  
Control Algorithm ◽  
Sliding Mode ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Terminal Sliding Mode ◽  
Reaching Law ◽  
Mode Control

Aiming at the parameter uncertainty and load torque disturbance of permanent magnet synchronous motor system, a terminal sliding mode control algorithm for permanent magnet synchronous motor based on the reaching law is proposed. First, a sliding mode control algorithm for sliding mode reaching law is proposed, which can dynamically adapt to the changes in system state. Second, a sliding mode disturbance observer is designed to estimate the lumped disturbance in real time and to compensate the controller for disturbance. On this basis, an online identification method based on disturbance observer for viscous friction coefficient and moment of inertia is used to reduce the influence of parameter uncertainty on the control system. Simulation and experimental results show the effectiveness of the method.

scholarly journals A Novel Reaching Law for Sliding Mode Control of Uncertain Discrete-Time Systems

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Qian Xu ◽  
H. P. Du ◽  
B. He ◽  
T. H. Yan ◽  
W. H. Li ◽  
...  
Keyword(s):  
Sliding Mode Control ◽  
Discrete Time ◽  
Control Algorithm ◽  
Sliding Mode ◽  
Sliding Surface ◽  
Reaching Law ◽  
Mode Control ◽  
Discrete Time Systems ◽  
Exponential Reaching Law ◽  
Time Systems

This paper proposed a new sliding mode control algorithm for discrete-time systems with matched uncertainty. The new control algorithm is characterized by a new discrete switching surface. Although the exponential reaching law can reduce oscillation, the control effectiveness will be suppressed when the rate of change of disturbance is high. The exponential reaching law cannot force the system states to approach sliding surface sk=0. In order to solve the contradiction between guaranteeing the basic property of quasi-sliding mode and reducing oscillation, a new discrete reaching law is proposed to improve the reaching process of discrete exponent reaching laws. The proposed method not only can force system state to approach the sliding surface sk=0 in less width of the switching manifold than existing studies, but also can alleviate chattering when the system representative points are near zero point. Simulation results are provided to validate the feasibility and reasonability of the method.

Sliding Mode Control Scheme for Uncertain Linear Systems

2012 ◽  
Vol 562-564 ◽  
pp. 2065-2068
Author(s):  
Gang Ding ◽  
Jin Liu ◽  
Jing Zhang
Keyword(s):  
Sliding Mode Control ◽  
High Frequency ◽  
Control Algorithm ◽  
Lyapunov Method ◽  
Sliding Mode ◽  
Sigmoid Function ◽  
Reaching Law ◽  
Mode Control ◽  
Control Scheme ◽  
Uncertain Linear Systems

A sliding mode control algorithm is proposed for a class of linear unmatched uncertain systems.The unmatched disturbance is will not be amplified by the discontinuous control. In order to reduce chattering, a bipolar sigmoid function without high frequency switching is induced. The control scheme developed is based on integral sliding mode and rate reaching law and stability is ensured using the Lyapunov method. An illustrative example shows the applicability of the method.

Reaching Law based Sliding Mode Control of Armature Controlled DC Motor

2020 ◽  
Author(s):  
Mohammed Ahmed ◽  
Salihu Abdulmumini Jalo ◽  
Umar Bilkisu Bapetel ◽  
Muhammad Usman Ilyasu ◽  
Engr. Isa Mohammed Inuwa ◽  
...  
Keyword(s):  
Sliding Mode Control ◽  
Sliding Mode ◽  
Dc Motor ◽  
Reaching Law ◽  
Mode Control

Sliding Mode Control of Servo System with Brushless DC Motor Based on Nominal Model

2013 ◽  
Vol 391 ◽  
pp. 415-419
Author(s):  
Fan Wang ◽  
Yi Xin Su ◽  
Hong Min ◽  
Fei Long
Keyword(s):  
Sliding Mode Control ◽  
Control Algorithm ◽  
Sliding Mode ◽  
Servo System ◽  
Dc Motor ◽  
Brushless Dc Motor ◽  
Parameter Uncertainties ◽  
Brushless Dc ◽  
Nominal Model ◽  
Mode Control

For brushless DC motor with parameter uncertainties and load disturbances in the practical servo system such as numerical control machine (NCM), a novel sliding mode control algorithm is proposed. This control algorithm consists of two controllers. One is the sliding mode controller for practical plant to ensure robustness against parameter uncertainties and load disturbances, the other is the backstepping controller for nominal model to compensate the position error for practical servo system. The Lyapunov approach is used to prove the convergence of the controllers.At last, The simulation results of nominal model-based sliding mode control algorithm show that it has high robustness and good position tracking performance with respect to parameter uncertainties and load disturbances.

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