scholarly journals Electro-Hydraulic Proportional System Real Time Tracking Control Development Based on Pulse width Modulation Method

2021 ◽  
Vol 23 (4) ◽  
pp. B336-B345
Author(s):  
Ezz Eldin Ibrahim ◽  
Tarek Elnady ◽  
Mohamed Saffaa Hassan ◽  
Ibrahim Saleh
Keyword(s):  
Real Time ◽  
Tracking Control ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Control Method ◽  
Modulation Method ◽  
Constant Input ◽  
Transient Time ◽  
Linear Variable Displacement Transducer ◽  
Real Time Tracking

The presented work was directed to develop the dynamic performance of an electro-hydraulic proportional system (EHPS). A mathematical model of the EHPS is presented using electro- hydraulic proportional valve (EHPV) by Matlab-Simulink, which facilitates the simulation of the hydraulic behavior inside the main control unit. Experimental work is done and the closed loop system is designed using the linear variable displacement transducer sensor (LVDT). The controller of the system is an Arduino uno, which is considered as a processor of the system. The model is validated by the experimental system. The study also presents a real time tracking control method, based on pulse width modulation, by controlling the speed of the actuator to achieve the position tracking with minimum error and low transient time, by applying the constant input signal 50mm the transient time was 0.9 seconds and the error 1.8%.

scholarly journals Electro-Hydraulic Proportional System Real Time Tracking Control Development Based on Pulse Width Modulation Method

2021 ◽  
Author(s):  
Ezz Eldin Ibrahim Mohamed ◽  
Tarek Elnady ◽  
Mohamed Saffaa Hassan ◽  
Saleh
Keyword(s):  
Real Time ◽  
Tracking Control ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Control Method ◽  
Dynamic Performance ◽  
Experimental System ◽  
Modulation Method ◽  
Linear Variable Displacement Transducer ◽  
Real Time Tracking

Abstract The present work is directed to develop the dynamic performance of an electro-hydraulic proportional system (EHPS). a mathematical model of (EHPS) is presented using electrohydraulic proportional valve (EHPV) by the aim of Matlab-simulink which facilitate the simulation of the hydraulic behavior inside the main control unit. Experimental work is done and closed loop system is designed using linear variable displacement transducer sensor (LVDT). The controller of the system is an Arduino uno which is considered as the processor of the system. The model is validated by the experimental system. The study also presents a real time tracking control method based on pulse width modulation by controlling the speed of the actuator to achieve position tracking with minimum error.

Research on Control System of Gearless Permanent Magnet Synchronous Traction Elevator

2011 ◽  
Vol 383-390 ◽  
pp. 5945-5950
Author(s):  
Yan Hu ◽  
Zhen Guang ◽  
Xiao Yu Wang
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
Permanent Magnet ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Control Method ◽  
Modulation Method ◽  
Driving System ◽  
Simulation Results ◽  
The Mathematical Model

A driving system for gearless traction machine plays an very important role in controlling elevator’s running. And its performances have a direct effect on the elevator’s performance. On the basic of the mathematical model of the gearless permanent magnetic synchronous machine (PMSM), id=0 vector control method and space vector pulse width modulation method are used in the control system. Then making a simulation on the system designed by MATLAB/SIMULINK. The simulation results show that the control method is feasible.

A Simplified Space Vector Pulse Width Modulation Method Including Over Modulation Operation for Five Level Cascaded H-bridge Inverter with FPGA Implementation

2017 ◽  
Vol 8 (3) ◽  
pp. 1203
Author(s):  
Bogimi Sirisha ◽  
P. Satish Kumar
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Control Method ◽  
Transfer Characteristic ◽  
Modulation Method ◽  
Optimal Switching ◽  
Space Vector ◽  
Digital Implementation ◽  
Modulation Region ◽  
Simulation Results

This<strong> </strong>paper presents simplified control strategy of Space Vector Pulse Width Modulation method  including over modulation region  with linear transfer characteristic for cascaded H-bridge inverters. Because of large number of switching states of the cascaded H- Bridge inverter, the over modulation operation is very complex. And also requires incorporation of  both under modulation and over modulation algorithms. The proposed control method is effective in terms of selecting the optimal switching states with reduced computational complexity using simplified linear calculations which makes it easier for digital implementation. The performance of the proposed method  is simulated and tested experimentally through Spartan 3A FPGA processor for five level Cascaded H-bridge Inverter. The simulation results and harmonic analysis of voltage and current at various modulation indexes as are presented which are in well agreement.

Real Time Implementation of Speed Control of PMLSM with Space Vector Pulse Width Modulation using dSPACE

2013 ◽  
Vol 7 (2) ◽  
pp. 19-25
Author(s):  
B. Arundhati ◽  
◽  
K. Alice Mary ◽  
Surya Kalavathi M ◽  
K. Shankar ◽  
...  
Keyword(s):  
Real Time ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Speed Control ◽  
Space Vector

Application of Slipped-Window Integrator and Repetitive Predictor in APF

2014 ◽  
Vol 556-562 ◽  
pp. 3585-3589
Author(s):  
Meng Qiong Wang ◽  
Chun Yu Xu
Keyword(s):  
Tracking Control ◽  
Pulse Width Modulation ◽  
Time Lag ◽  
Active Power Filter ◽  
Active Power ◽  
Modulation Method ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Power Filter ◽  
Low Pass

In view of the shortages time lag existing in traditional digital low-pass filter in Active Power Filter (Active Power Filter, APF), this paper proposes to adopt slipped-window integrator to realize low-pass filter in harmonic current detection.The current tracking control uses Space Vector Pulse Width Modulation method. Meanwhile, the repetitive predictor is applied so as to improve the real-time performance of the compensation current tracking control. Built a three-phase shunt active power filter simulation model in Matlab/Simulink environment and take experiment under the low pressure condition. The results show that slipped-window integrator and deadbeat current mothod can acquire good dynamic response performance as well as high precision.

scholarly journals A model reference adaptive variable impedance control method for robot

2021 ◽  
Vol 336 ◽  
pp. 03005
Author(s):  
Xinchao Sun ◽  
Lianyu Zhao ◽  
Zhenzhong Liu
Keyword(s):  
Real Time ◽  
Tracking Control ◽  
Control Method ◽  
Impedance Control ◽  
Tracking Error ◽  
Reference Trajectory ◽  
Control Parameters ◽  
Model Reference ◽  
Force Tracking ◽  
Model Reference Adaptive

As a simple and effective force tracking control method, impedance control is widely used in robot contact operations. The internal control parameters of traditional impedance control are constant and cannot be corrected in real time, which will lead to instability of control system or large force tracking error. Therefore, it is difficult to be applied to the occasions requiring higher force accuracy, such as robotic medical surgery, robotic space operation and so on. To solve this problem, this paper proposes a model reference adaptive variable impedance control method, which can realize force tracking control by adjusting internal impedance control parameters in real time and generating a reference trajectory at the same time. The simulation experiment proves that compared with the traditional impedance control method, this method has faster force tracking speed and smaller force tracking error. It is a better force tracking control method.

scholarly journals A Carrier-Based Pulse Width Modulation Method for Indirect Matrix Converters

2012 ◽  
Vol 12 (3) ◽  
pp. 448-457 ◽  
Author(s):  
Dinh-Tuyen Nguyen ◽  
Hong-Hee Lee ◽  
Tae-Won Chun
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Modulation Method ◽  
Matrix Converters

scholarly journals Modeling and analysis of vector control systems for asynchronous motor

2020 ◽  
Vol 178 ◽  
pp. 01001 ◽  
Author(s):  
Viktor Meshcheryakov ◽  
Tatyana Sinyukova ◽  
Alexey Sinyukov ◽  
Andrei Boikov ◽  
Rustem Mukhametzhanov
Keyword(s):  
Vector Control ◽  
Control Systems ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Asynchronous Motor ◽  
Evaluation Criteria ◽  
Torque Ripple ◽  
Modulation Method ◽  
Asynchronous Electric Drive ◽  
Vector Systems

The study aims at the analysis of vector control asynchronous electric drive systems. For comparison and evaluation, mathematical models of systems are implemented in the environment of simulation modeling Matlab Simulink. The evaluation criteria selected were: complexity of implementation, energy efficiency of the inverter, accuracy of speed maintenance, torque ripple, reaction speed of the system to disturbances from the side of the drive mechanism, impact on the supply network. Vector control systems by ensuring the maintenance of accuracy of the moment in the entire range of speed control are more widespread. The study of vector systems, the formation of the stator voltage vector in which is carried out using pulse-width modulation. The signal organization during the study was carried out by several methods. At the initial stage, the signal was formed due to relay-vector control in a closed loop for monitoring the instantaneous values of current errors without forced modulation; at the next stage of the study, the signal was generated using sinusoidal pulse-width modulation based on a comparison of control signals with some reference vector, the final stage became a spatial-vector modulation method.

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