Auto Disturbance Rejection Control for Nonlinear Object

2013 ◽  
Vol 645 ◽  
pp. 243-246
Author(s):  
Shu Biao Song ◽  
Zhong Biao Sheng
Keyword(s):  
Pid Control ◽  
Disturbance Rejection ◽  
Error Control ◽  
Water Tank ◽  
Control Technology ◽  
Control Effect ◽  
Static Error ◽  
Disturbance Rejection Control ◽  
Nonlinear Object ◽  
Excellent Control

For some nonlinear complex control objects, conventional PID is not able to acquire excellent control effect because of its inherent defects. As a new controller based on PID control technology, Auto Disturbances Rejection Control (ADRC) breaks through the limitation of the former technology, at the same time maintains its advantages. In this paper, these two methods are used for nonlinear object −−two-step water tank respectively. Simulation and application results prove that ADRC controller has better adaptability and robustness when controlling the nonlinear time-delay object, and has capability to achieve no-overshoot and no-static-error control.

Auto Disturbance Rejection Control for Nonlinear Time-Delay Systems

2013 ◽  
Vol 278-280 ◽  
pp. 1547-1550
Author(s):  
Quan Cheng Gong ◽  
Ya Feng Wu
Keyword(s):  
Time Delay ◽  
Pid Control ◽  
Disturbance Rejection ◽  
Delay Systems ◽  
Water Tank ◽  
Control Technology ◽  
Time Delay Systems ◽  
Static Error ◽  
Disturbance Rejection Control ◽  
Nonlinear Object

For some nonlinear complex control objects, conventional PID control is not able to obtain satisfactory control characteristics because of its inherent defaults. As a new controller based on PID control technology, auto disturbances rejection control(ADRC) breaks through the limitation of the former technology, at the same time maintains its advantages. In this paper, these two methods are used for nonlinear object −−two-step water tank respectively. Simulation and application results prove that ADRC controller works with better adaptability and robustness when controlling the nonlinear time-delay object, and is easier to achieve the control of no-overshoot and no-static-error.

Research on Attitude Control of Spacecraft Based on ADRC

2011 ◽  
Vol 383-390 ◽  
pp. 358-365 ◽  
Author(s):  
Fu Lin Teng ◽  
Hong Yu Ge ◽  
Hong Sheng Li ◽  
Jian Hua Zhang
Keyword(s):  
Attitude Control ◽  
Disturbance Rejection ◽  
High Performance ◽  
Control Technology ◽  
Attitude Control System ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control ◽  
Simulation And Experiment ◽  
Attitude Controller ◽  
Very High

Modern spacecraft demands from an attitude control system very high performance and accuracy, and many new features, such as disturbance rejection capability. The recently developed active disturbance rejection control technology is applied to the attitude control of spacecraft subject to disturbances and parametric uncertainties. Simulation and experiment show significant advantages of the proposed attitude controller over the controller resulting from conventional PID approach.

scholarly journals Design of an active front steering system for a vehicle using an active disturbance rejection control method

2019 ◽  
Vol 103 (1) ◽  
pp. 003685041988356
Author(s):  
Nan Sang ◽  
Lele Chen
Keyword(s):  
Pid Control ◽  
Disturbance Rejection ◽  
Tracking Error ◽  
Lateral Acceleration ◽  
Active Disturbance Rejection Control ◽  
Vehicle Model ◽  
Active Disturbance Rejection ◽  
Active Front Steering ◽  
Disturbance Rejection Control ◽  
Better Than

A linear vehicle model is commonly employed in the controller design for an active front steering (AFS). However, this simplified model has a considerable influence on the accuracy of the controller. In this article, an AFS controller using an active disturbance rejection control (ADRC) technique is proposed to prevent this problem. The AFS controller was established in MATLAB/Simulink to control the CarSim vehicle model for verification of the simulation. Under the straight-line driving disturbance condition, proportion-integration-differentiation (PID) control and ARDC substantially decreased with respect to the uncontrolled lateral offset and ADRC performed better than PID control. Under the double lane change (DLC) test working condition, the tracking error of the path, yaw rate, roll angle, and lateral acceleration, and error of the driving direction were used to evaluate the vehicle’s controllability and stability. These evaluation indexes were substantially improved by PID control and ADRC; similarly, ADRC was better than PID control. The tracking error of the ADRC in the presence of parameter variance and external disturbance was significantly smaller than that of PID control. The results have verified that the AFS controller based on ADRC can significantly improve vehicle controllability and stability.

On External Disturbance Rejection of Linear ADRC

2019 ◽  
Author(s):  
Huiyu Jin ◽  
Yang Chen ◽  
Weiyao Lan
Keyword(s):  
High Frequency ◽  
Disturbance Rejection ◽  
Bandpass Filter ◽  
External Disturbance ◽  
Low Frequency ◽  
Second Order ◽  
Control Technology ◽  
Active Disturbance Rejection Control ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control

Abstract Active disturbance rejection control (ADRC) is a quickly developing practical control technology while its ability to reject external disturbance is necessary to investigate deeply. Focusing on the simple case that the plant is an exactly known second order plant, this paper investigates the external disturbance rejection of linear ADRC. It reveals a separation diagram, in which the external disturbance goes into the output via a bandpass filter. That is the reason why linear ADRC can reject both low-frequency and high-frequency external disturbance.

Research on Active Disturbance Rejection Control Strategy of Static Reactive Power Generator

2015 ◽  
Vol 1092-1093 ◽  
pp. 316-320
Author(s):  
Jing Bai ◽  
Yu Zhang ◽  
Hui Da Duan ◽  
Shi Qi Lu ◽  
Chao Chao Li ◽  
...  
Keyword(s):  
Control Strategy ◽  
Pid Control ◽  
Disturbance Rejection ◽  
Control Algorithm ◽  
Reactive Power ◽  
Error Feedback ◽  
Power Generator ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control ◽  
Nonlinear State

For the shortcomings of large overshoot and poor anti-disturbance ability when using the traditional PID control, ADRC control algorithm that is a nonlinear state error feedback control algorithm has been proposed in the sophisticated control system of static reactive power generator. The simulation results show that the algorithm can make the system reactive power compensation more quickly and more effectively, therefore the control strategy is feasible.

AUV’s Executer Fault-Tolerant Control Based on ADRC

2014 ◽  
Vol 1006-1007 ◽  
pp. 581-585 ◽  
Author(s):  
Lei Wan ◽  
Ying Hao Zhang ◽  
Yu Shan Sun ◽  
Yue Ming Li
Keyword(s):  
Control Strategy ◽  
Pid Control ◽  
Disturbance Rejection ◽  
Control Method ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control ◽  
Simulation Results ◽  
The One

An autonomous under vehicle (AUV) should have the ability of self-saving and finishing the certain targets when faults occur, which means that an AUV must have the ability of fault-tolerant control. In order to make it possible, one AUV’s fault-tolerant control strategy is made, which is based on the active disturbance rejection control (ADRC). In this paper, the control method in normal and the one in fault are offered respectively. Besides that, one simulation compared with PID control is made. The simulation results show the AUV’s fault-tolerant control strategy based on ADRC can achieve the goal and has better control results to restrain the shock, overshoot and other phenomena caused by disturbance than the strategy based on PID.

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