Design and Research on Constant Tension Controller in Electric Power Transmission

2012 ◽  
Vol 566 ◽  
pp. 377-381
Author(s):  
Yun Ping Yao ◽  
Chu Ran Qiu ◽  
Zeng Zhao Cao
Keyword(s):  
Transmission Lines ◽  
Power Transmission ◽  
Control Method ◽  
Response Characteristic ◽  
Tension Control ◽  
Constant Tension ◽  
Dynamic Response Characteristic ◽  
Tension Control System ◽  
Control Principle ◽  
And Control

In order to improve the characteristic and control strategy in transmission lines, a tension stringing mathematical model was established which analyzed the multiple disturbance factors of tension. According to the tension control principle of hydraulic system and the influence of different factors, a control method of constant tension adapted to the system was proposed based on pressure regulating plan. By simulation, the modified tension control system enhanced the dynamic response characteristic and stability effectively, which can realize the ideal constant tension control.

Research on Tension Control Model for Traction and Take-up System of Loom

2012 ◽  
Vol 627 ◽  
pp. 444-448
Author(s):  
You Zhao Wang ◽  
Huang Jing ◽  
Han Wei Chen
Keyword(s):  
Control System ◽  
Control Mechanism ◽  
Control Model ◽  
Tension Control ◽  
Pid Algorithm ◽  
Constant Tension ◽  
Winding Tension ◽  
Tension Control System ◽  
And Control

This paper does some researches on the framework and control mechanism of traction and take-up system of Loom, which keep the winding tension constant. A traction and take-up control model using fuzzy neutral network adaptive PID algorithm is designed. The results prove this model is available in constant tension control system. The constant tension control system makes traction and take-up system operate more precisely and improves the quality of fabric.

Tension Control Strategy in Plastic Film Printing Process

2013 ◽  
Vol 655-657 ◽  
pp. 1321-1325
Author(s):  
Peng Sun ◽  
Peng Cao
Keyword(s):  
Control Method ◽  
Friction Torque ◽  
Tension Control ◽  
Rotational Inertia ◽  
Plastic Film ◽  
Diameter Measurement ◽  
Dynamic Tension ◽  
Drive Control ◽  
Coil Diameter ◽  
Constant Tension

The character of the tension control in the plastic-film printing was introduced, and the coiler drive control method was given. The indirect constant tension control method was analyzed, and the key parameters were given, also the method of coil diameter measurement with distance meter, the friction torque in different rotate speed was given by the friction torque test; the method of rotational inertia measurement which influence the dynamic tension was put forward.

A Research on Ultra Precision Machining for Ti-6AL-4V Alloy Based Biomedical Applications Using Nanopositioning Mechanism

2013 ◽  
Vol 25 ◽  
pp. 157-173 ◽  
Author(s):  
Nam Su Kwak ◽  
Jae Yeol Kim ◽  
Dae Gwang Park
Keyword(s):  
Piezoelectric Actuator ◽  
Biomedical Applications ◽  
Power Transmission ◽  
Control Method ◽  
Precision Machining ◽  
Ductile Mode ◽  
Single Crystal Diamond ◽  
Ultra Precision ◽  
Flexure Guide ◽  
And Control

In this study, piezoelectric actuator, flexure guide, power transmission element and control method are considered for nanopositioning system apparatus. The main objectives of this thesis were to develop 2-axis nanostage which enables 2-axis control with the aid of piezoelectric actuator, and to improve the precision of the ultra-precision lathe (UP2) which is responsible for the ductile mode machining of the hardened-brittle material where the machining uses a the single-crystal diamond. Through simulation and experiments on ultra-precision positioning, stability and priority of the nanopositioning system with 2-axis nanostage and control algorithm are developed using Matlab/Simulink. Then the system, is applied to analyze surface morphology of the titanium alloy (Ti-6Al-4V)

Study on multi-section continuum robot wire-tension feedback control and load manipulability

2020 ◽  
Vol 47 (6) ◽  
pp. 837-845
Author(s):  
Azamat Nurlanovich Yeshmukhametov ◽  
Koichi Koganezawa ◽  
Zholdas Buribayev ◽  
Yedilkhan Amirgaliyev ◽  
Yoshio Yamamoto
Keyword(s):  
Control Method ◽  
Tension Control ◽  
Estimation Model ◽  
Content Type ◽  
Wire Tension ◽  
Payload Capacity ◽  
Continuum Robot ◽  
Continuum Manipulators ◽  
And Control ◽  
The Continuum

Purpose The purpose of this paper is to present a novel hybrid pre-tension mechanism for continuum manipulators to prevent wire slack and improve continuum robot payload capacity, as well as to present a new method to control continuum manipulators’ shape. Design/methodology/approach This research explains the hardware design of a hybrid pre-tension mechanism device and proposes a mathematic formulation wire-tension based on robot design. Also, the wire-tension control method and payload estimation model would be discussed. Findings Wire-tension is directly related to the continuum manipulators’ rigidity and accuracy. However, in the case of robot motion, wires lose their tension and such an issue leads to the inaccuracy and twist deformation. Therefore, the proposed design assists in preventing any wire slack and derailing the problem of the wires. Originality/value The novelty of this research is proposed pre-tension mechanism device design and control schematics. Proposed pre-tension mechanism designed to maintain up to eight wires simultaneously.

Effect and Control of Pendular Motion of Abandoned Satellite on Tether Drag System

2014 ◽  
Vol 513-517 ◽  
pp. 3900-3906
Author(s):  
Guo Wei Zhao ◽  
Bin Tang ◽  
Liang Sun ◽  
Xing Min Zhang
Keyword(s):  
Space Debris ◽  
Control Method ◽  
Tangential Direction ◽  
Angular Frequency ◽  
Tension Control ◽  
Control Law ◽  
Attitude Dynamics ◽  
Jet Control ◽  
And Control ◽  
Oscillation Characteristics

As a kind of typical on-orbit capture and aberrance technology, space tether de-orbit system has broad application prospect in terms of cleaning space debris and abandoned satellites. In the paper, the attitude dynamics equations of the tether de-orbit system is established based on law of moment of momentum; Against the background of de-orbiting under a constant thrust in the tangential direction, the optimized PD control law with limited attitude feedback on jet control and momentum wheel control is designed for the mission satellite; The oscillation characteristics of the attitude of abandoned satellite are studied, and the effect of the oscillation on the tethered system and based satellite are analyzed; According to the demand for maintaining the position and suppressing the oscillation of the abandoned satellite, a kind of tension control method is put forward. Numerical simulation results indicate that the abandoned satellite oscillates at a specific angular frequency, and the large amplitude threatens the stabilization of tethered system; the designed tension control method effectively eliminate the oscillation of the abandoned satellite and ensure the flight safety of the tether de-orbit system, with economic energy consumption for the control of the based satellite.

Simulation of PFC Algorithm in the System of Tension Control of Shaftless Driven

2013 ◽  
Vol 823 ◽  
pp. 374-377
Author(s):  
Meng Tao Huang ◽  
Yan Jun Zhou ◽  
Jing Ma
Keyword(s):  
Control System ◽  
Prediction Model ◽  
Tension Control ◽  
Order System ◽  
Reference Trajectory ◽  
Prediction Horizon ◽  
Internal Parameters ◽  
Constant Tension ◽  
Depth Study ◽  
Tension Control System

Through the in-depth study of working principle and application of PFC algorithm, the paper introduces PFC algorithm to the constant tension control of the system of shaftless driven in printer. In order to better implement constant tension control of shaftless driven control system, the paper choose a first order system as the transfer function of the system of tension model. The paper carries on the silulation of the system’s output of constant tension ,aiming at the situation of the changing of the internal parameters of prediction model for PFC algorithm, such as the attenuation coefficient of reference trajectory , the change of fitting points , prediction horizon and so on, matching of prediction model and tension model of PFC algorithm. The simulation system provides a theoretical basis to build the actual tension control system.

scholarly journals No-Tension Sensor Closed-Loop Control Method with Adaptive PI Parameters for Two-Motor Winding System

2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Zhiqiang Wang ◽  
Haibao Nan ◽  
Tingna Shi ◽  
Qiang Geng ◽  
Changliang Xia
Keyword(s):  
Closed Loop ◽  
Control Method ◽  
Recursive Algorithm ◽  
Dynamic Performance ◽  
Tension Control ◽  
Closed Loop Control ◽  
Loop Control ◽  
Measurement Delay ◽  
Tension Sensor ◽  
Tension Control System

In a winding system, it is very important to control the tension precisely. Based on the process of rewinding and unwinding, a sensorless tension control method with PI parameters of adaptive speed controllers is proposed in this paper. According to the principle of torque balance, a tension observer is designed to replace the tension sensor, and the observed value instead of the measured value of tension is used as feedback. Then the measurement delay caused by tension sensor is reduced. For the time-variable inertia, Landau discrete-time recursive algorithm is used to estimate the inertias of the rewind and unwind motors. Moreover, the estimated inertias are used to adjust the PI parameters of the speed controllers. As the tension control system has the ability to adapt to the change of inertia, its dynamic performance is improved to some extent. In addition, the proposed sensorless tension control method is simple and easy to implement, which only uses the current and speed signals of the motors without any additional hardware needed. At last, the feasibility and effectiveness of the proposed method are verified by the experimental results.

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