Design of Ship-Borne Antenna Servo Control System Based on ADRC

2014 ◽  
Vol 687-691 ◽  
pp. 375-377
Author(s):  
Dong Xu Zhu ◽  
Lin Fei Sun ◽  
Xin Rong Wang
Keyword(s):  
Control System ◽  
Pid Controller ◽  
Simple Structure ◽  
Servo Control ◽  
System Response ◽  
Target Velocity ◽  
Servo Control System ◽  
System Requirements ◽  
Unknown Disturbance ◽  
Output Information

Based on structure analysis of a certain ship-borne servo control system, the target velocity is contributed to exterior unknown disturbance and the system parameter change is looked as interior unknown disturbance. The extend state observer is used to estimate the disturbance accurately with the input and output information of system response, then the controller can compensate the disturbance furthest. The simulation results show that the ADRC method has good robust performance, compared with the traditional PID controller. Without using the sensor to measure the target state, it can satisfy the system requirements with a simple structure, it shows the controller has good aspect to have good engineering function and prospect.

scholarly journals Optimized PID Controller Based on Beetle Antennae Search Algorithm for Electro-Hydraulic Position Servo Control System

Sensors ◽  
2019 ◽  
Vol 19 (12) ◽  
pp. 2727 ◽  
Author(s):  
Yuqi Fan ◽  
Junpeng Shao ◽  
Guitao Sun
Keyword(s):  
Control System ◽  
Pid Controller ◽  
Search Algorithm ◽  
Three Dimensional ◽  
Parameter Tuning ◽  
Servo Control ◽  
Dimensional Parameter ◽  
Servo Control System ◽  
Position Servo Control ◽  
Position Servo

To improve the controllability of an electro-hydraulic position servo control system while simultaneously enhancing the anti-jamming ability of a PID controller, a compound PID controller that combines the beetle antennae search algorithm with PID strategy was proposed, and used to drive the position servo control system of the electro-hydraulic servo system. A BAS-PID controller was designed, and the beetle antennae search algorithm was used to tune PID parameters so that the disturbance signal of the system was effectively restrained. Initially, the basic mathematical model of the electro-hydraulic position servo control system was established through theoretical analysis. The transfer function model was obtained by identifying system parameters. Then, the PID parameter-tuning problem was converted into a class of three-dimensional parameter optimization problem, and gains of PID controllers were adjusted using the beetle antennae search algorithm. Finally, by comparing the effectiveness of different algorithms, simulation and experimental results revealed that the BAS-PID controller can greatly enhance the performance of the electro-hydraulic position servo control system and inhibit external disturbances when different interference signals are used to test the system’s robustness.

scholarly journals Improved Beetle Antennae Search Algorithm-Based Lévy Flight for Tuning of PID Controller in Force Control System

2020 ◽  
Vol 2020 ◽  
pp. 1-22
Author(s):  
Yuqi Fan ◽  
Junpeng Shao ◽  
Guitao Sun ◽  
Xuan Shao
Keyword(s):  
Control System ◽  
Pid Controller ◽  
Search Algorithm ◽  
Servo Control ◽  
Response Analysis ◽  
Lévy Flight ◽  
Levy Flight ◽  
Original Algorithm ◽  
Servo Control System ◽  
Random Step

To enhance the anti-interference capability of an electrohydraulic force servo control system and increase the efficiency of the PID controller, this paper proposes a LBAS-PID controller. In LBAS, the random step created by the Lévy flight trajectory was used in the original algorithm to enhance the diversity of the population and convergence speed. In the force servo control system, LBAS-PID can enhance the performance of the system. First, the basic mathematical model of an electrohydraulic force servo control system was built based on theoretical analysis. The transfer function model was obtained by identifying the system parameters. Second, the introduced Lévy flight beetle antennae search algorithm was introduced and applied to ten benchmark functions, and the results were compared with those of other algorithms. Then, the proposed algorithm was applied in the PID controller to tune PID parameters in the force servo control system. To comprehensively evaluate performances of an electrohydraulic force servo control system that is controlled by the LBAS-PID controller, the frequency response analysis and temporal response analysis were obtained. The numerical analysis results indicate that an electrohydraulic force servo control system with an LBAS-PID controller could substantially increase the control characteristics of the system and restrain the external disturbances when different interference signals are examined.

Implementation of Turntable Servo Control System Based on Fuzzy Self-Tuning PID

2011 ◽  
Vol 383-390 ◽  
pp. 1101-1105
Author(s):  
Yan Min Wu ◽  
Jun Jie Wang ◽  
Guang Zhao Cui ◽  
Wei Deng
Keyword(s):  
Mathematical Model ◽  
Fuzzy Logic ◽  
Control System ◽  
Pid Controller ◽  
Good Accuracy ◽  
Fast Response ◽  
Servo Control ◽  
Servo Control System ◽  
Self Tuning ◽  
Simulation Results

The paper presents the making of driver-motor-reducer and turntable system, and builds a mathematical model of this system. The design of a self-tuning PID controller and the simulation of the whole system are realized by using the MATLAB fuzzy logic tool. The simulation results show that the turntable servo system with the fuzzy self-tuning PID controller has a slight overshoot, fast response, good accuracy and robustness etc.

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