Study on Speed Control System of Fluid-Driven In-Pipe Robot

2009 ◽  
Vol 16-19 ◽  
pp. 249-253
Author(s):  
Jian Yong Li ◽  
Xiao Bo Su ◽  
Lai Jiang ◽  
Rong Li Li ◽  
Xing Hua Gao ◽  
...  
Keyword(s):  
Control System ◽  
Closed Loop ◽  
Speed Control ◽  
Flow Area ◽  
Through Flow ◽  
Speed Control System ◽  
Loop Feedback ◽  
Speed Stability ◽  
Closed Loop Feedback ◽  
The Relationship

The fluid-driven in-pipe robot is developed. Speed control system was model analyzed and the relationship between the load that affect the speed stability and through-flow area was derived, and the speed control system including double closed-loop feedback part was built.

Digital DC Speed Control System in Mine Hoist Application

2011 ◽  
Vol 219-220 ◽  
pp. 1017-1021
Author(s):  
Rui He ◽  
Yun Ping Ge
Keyword(s):  
Control System ◽  
Closed Loop ◽  
Speed Control ◽  
Closed Loop System ◽  
Pi Regulator ◽  
Control Precision ◽  
Speed Control System ◽  
Digital Trigger ◽  
Mine Hoist ◽  
Work Stability

Mine hoist shoulder important transport tasks. Through the analysis of the main circuit of mine hoist, this paper studies out ASCS digital DC speed control system whose core is microprocessor and whose hardware part constitutes digital trigger and double closed loop system. The software part not only achieves the system's digital PI regulator, logic switching, digital trigger phase shift, pulse channel selection and pulse width setting, but also realizes the systematic detection, monitoring, fault diagnosis, which improves the control precision and work stability of the system.

Stability analysis in machining process by using adaptive closed-loop feedback control system in turning process

2020 ◽  
pp. 107754632095261
Author(s):  
Kashfull Orra ◽  
Sounak K Choudhury
Keyword(s):  
Control System ◽  
Feedback Control ◽  
Closed Loop ◽  
Machining Process ◽  
Feedback Control System ◽  
Turning Process ◽  
Tool Vibration ◽  
Loop Feedback ◽  
Closed Loop Feedback ◽  
The Stability

The study presents model-based mechanism of nonlinear cutting tool vibration in turning process and the strategy of improving cutting process stability by suppressing machine tool vibration. The approach used is based on the closed-loop feedback control system with the help of electro–magneto–rheological damper. A machine tool vibration signal generated by an accelerometer is fed back to the coil of a damper after suitable amplification. The damper, attached under the tool holder, generates counter forces to suppress the vibration after being excited by the signal in terms of current. The study also discusses the use of transfer function approach for the development of a mathematical model and adaptively controlling the process dynamics of the turning process. The purpose of developing such mechanism is to stabilize the machining process with respect to the dynamic uncut chip thickness responsible for the type-II regenerative effect. The state-space model used in this study successfully checked the adequacy of the model through controllability and observability matrices. The eigenvalue and eigenvector have confirmed the stability of the system more accurately. The characteristic of the stability lobe chart is discussed for the present model-based mechanism.

Research on the Relationship between Speed Control System and Electromechanical Oscillations

2015 ◽  
Vol 710 ◽  
pp. 47-52 ◽  
Author(s):  
Ya Qing Zhu ◽  
Min Zhong ◽  
Yu Jia Ma ◽  
Feng Ping Pan ◽  
Ling Ling Shi ◽  
...  
Keyword(s):  
Control System ◽  
Steam Turbine ◽  
Time Constant ◽  
Response Rate ◽  
Speed Control ◽  
Servo Motor ◽  
Speed Control System ◽  
Hydraulic Servo ◽  
The Impact ◽  
The Relationship

The system damping of electric power systems is influenced by factors of many aspects. In this paper, we analyzed the impact of speed control system on the damping of the whole system in consideration of the Pole-Zero Analysis. The result shows that simple speed control would damp the oscillation, while the power-frequency control would excite the oscillation. Furthermore, the effect of steam turbine response rate on the system damping is analyzed. The time constant of hydraulic servo-motor would determine the response rate of the steam turbine, and as a result, an inflection point exists on the curve which describes the relationship between hydraulic servo-motor time constant and system damping. The result demonstrates that the characteristics of system damping can be used in parameter debugging of steam turbine.

Design and Simulation of Fuzzy-PID DC Governor System Based on Mine Hoist

2013 ◽  
Vol 341-342 ◽  
pp. 834-838
Author(s):  
Yan Xiang Wu ◽  
Chao Jun Zhang ◽  
Hai Bo Huo ◽  
Chao Qun Zhou
Keyword(s):  
Control System ◽  
Pid Control ◽  
Closed Loop ◽  
Speed Control ◽  
Fuzzy Pid ◽  
Matlab Simulink ◽  
Control Scheme ◽  
Speed Control System ◽  
Mine Hoist

According to the requirement of smooth operation and accurate positioning for DC speed regulating system of mine hoist, a new speed control system that based on double closed-loop of Fuzzy-PID was designed. The best control scheme for mine hoist was also validated by simulation comparison with conventional PID control system in the MATLAB/Simulink. The result showed that the proposal was feasible and had practical value.

A Regulator Parameter Setting Simulation Research on Double Closed Loop Speed Control System

2013 ◽  
Vol 655-657 ◽  
pp. 1348-1353
Author(s):  
Wen Tao Liu ◽  
Zhong Hu Yuan ◽  
Xiao Wei Han
Keyword(s):  
Control System ◽  
Closed Loop ◽  
Optimal Parameter ◽  
System Development ◽  
Speed Control ◽  
Simulation Method ◽  
Actual System ◽  
Simulation Research ◽  
Speed Control System ◽  
Speed Regulator

For the good performance of Double closed-loop DC speed control system, it is widely used . When the motor are selected, the parameters of the system can not be changed. Then,the system performance can only be improved by changing the parameters of the inner ring current regulator and outer ring speed regulator of the double-loop DC converter system. This paper studies mathematical modeling and system simulation of Direct Current Governor System on Matlab simulink platform. The simulation method, can adjust the system controller parameters flexibly, so as to achieve the ideal design results, and the design of the system are analyzed, the optimal "parameter range" is found, It can save the time of system development,and improve the standardization degree of system design.And the simulation results of the system can provide primary plannings and guidances for the actual system design,thereby lower the design cost of hardware largely, enhance the accuracy of hardware installation.

Closed Loop Speed Control System of ESPCP with Capillary Tube

2017 ◽  
Author(s):  
Shijia Zhu ◽  
Zhongxian Hao ◽  
Quanbin Wang ◽  
Lixin Zhang
Keyword(s):  
Control System ◽  
Closed Loop ◽  
Capillary Tube ◽  
Speed Control ◽  
Speed Control System

Research and Develop of Tube Catching Manipulator Control System Based on DMC

2014 ◽  
Vol 623 ◽  
pp. 182-186
Author(s):  
Qi Zhu ◽  
Yan Wu ◽  
Yu An He
Keyword(s):  
Control System ◽  
Pid Controller ◽  
Closed Loop ◽  
Pid Algorithm ◽  
Loop Feedback ◽  
Closed Loop Feedback ◽  
Manipulator Control

This paper introduces the tube catching manipulator control system based on DMC, elaborating hardware and software of the whole control system, applying the PID algorithm and closed-loop feedback, putting forward a control system combined increment PID controller and double closed-loop compensation. It makes the manipulator position more accurately and run more stably.

Sign in / Sign up

Export Citation Format

Share Document