scholarly journals Detailed modelling and simulation of different DC motor types for research and educational purposes

2021 ◽  
Vol 12 (2) ◽  
pp. 703
Author(s):  
Saif Sabah Sami ◽  
Zeyad Assi Obaid ◽  
Mazin T. Muhssin ◽  
Ali N. Hussain
Keyword(s):  
Dynamic Models ◽  
Block Diagram ◽  
Electrical Machines ◽  
Machine Model ◽  
Matlab Simulink ◽  
Dc Motors ◽  
E Learning ◽  
First Time ◽  
Modelling Methods ◽  
Diagram Representation

The devastating impact of Covid-19 pandemic accelerated the shift to e-learning in the higher education. Particularly in the electrical machines courses, that often include laboratory experiments. However, no detailed models of DC motors, developed in MATLAB/Simulink, were reported in literature.  Hence, in this paper, a virtual laboratory consist of models of DC motors was built for the first time. The proposed models are easy to use and modify, and allow all machines’ parameters to be altered for students to replicate easily to support and enhance the learning process of electrical machines courses. Consequently, the developed models are effective tools for educational and research purposes. Dynamic models of DC motors were developed using MATLAB/Simulink, namely separately excited, permanent magnet, shunt-connected and series-connected DC motors. Two different approaches for modelling were proposed, the block diagram representation and Simscape based models. The two modelling methods were validated against the built-in DC machine model. The proposed models are easy to use and modify, and allow all machines’ parameters to be altered for monitoring and comparison purposes. Consequently, the developed models are effective tools for research and educational purposes.

scholarly journals Detailed modelling and simulation of single-phase transformers for research and educational purposes

2021 ◽  
Vol 24 (1) ◽  
pp. 37
Author(s):  
Saif Sabah Sami ◽  
Mazin T. Muhssin ◽  
Zeyad Assi Obaid ◽  
Ali N. Hussain
Keyword(s):  
Single Phase ◽  
Dynamic Models ◽  
Block Diagram ◽  
Electrical Machines ◽  
Virtual Laboratory ◽  
E Learning ◽  
Transformer Model ◽  
First Time ◽  
Modelling Methods ◽  
Diagram Representation

<span>COVID-19 pandemic, despite its devastating impact, accelerated the shift to e-learning in higher education. Particularly in the electrical machines courses, that often include laboratory experiments. However, no detailed models of transformers, developed in Simulink/MATLAB®, were reported in the literature. Hence, in this paper, a virtual laboratory consists of models of single-phase transformers was built for the first time. The proposed models are easy to use and modify, and allow all machines’ parameters to be altered for students to replicate easily to support and enhance the learning process of electrical machines courses. Consequently, the developed models are effective tools for educational and research purposes. Dynamic models of single-phase, two-winding, transformers and step-up and step-down auto-transformers were developed using Simulink/MATLAB®. Two different approaches for modelling were proposed, the block diagram representation and Simscape based models. The two modelling methods were validated against the built-in transformer model. The developed models have been successfully integrated into electrical engineering courses at Middle Technical University, Baghdad, Iraq. Therefore, all developed models are freely available online at a dedicated repository.</span>

Intelligent Control of Compact Multiphase Separation System (CMSS©)—Part I: Modeling and Simulation

2009 ◽  
Author(s):  
V. Sampath ◽  
R. Mohan ◽  
S. Wang ◽  
L. Gomez ◽  
O. Shoham ◽  
...  
Keyword(s):  
Control System ◽  
Modeling And Simulation ◽  
Intelligent Control ◽  
Dynamic Models ◽  
Free Water ◽  
Integrated System ◽  
Separation System ◽  
Matlab Simulink ◽  
Knock Out ◽  
Cylindrical Cyclone

Performance of compact separators depends on implementation of stable and robust control strategies that are suited for specific applications. In this investigation, an intelligent control system has been developed for Compact Multiphase Separation System (CMSS©) which consists of integrated configurations of three compact separators, namely, Gas-Liquid Cylindrical Cyclone (GLCC©), Liquid-Liquid Cylindrical Cyclone (LLCC©) and Liquid-Liquid Hydrocyclone (LLHC). This is a two-part paper, the first part (current paper) deals with the Modeling and Simulation of the CMSS© and the second part deals with Experimental Investigation. The specific objective of this CMSS© configuration is to knock out free water from the upstream fluids. In mature oil fields, water handling poses a huge problem. Thus water knock out at the earliest stage helps in significant cost savings. A novel fuzzy logic control system has been designed and tested for change in set-point of differential pressure ratio in LLHC. Dynamic models have been developed for each of the above mentioned control systems for design of stable PID parameters. A dynamic simulation platform (DSP) has been developed based on these models in Matlab/Simulink™ for predicting the transient performance of the integrated system. Steady state mechanistic models of individual devices are integrated to the Matlab/Simulink™ platform using look up tables to predict the overall response of the CMSS© for different scenarios.

Educational Support of the Course Nursing Procedures and Interventions

2015 ◽  
Vol 4 (1) ◽  
pp. 28-39
Author(s):  
Markéta Babičová ◽  
Ingrid Nagyová
Keyword(s):  
Main Part ◽  
Full Time ◽  
Test Results ◽  
Educational Support ◽  
Study Programs ◽  
E Learning ◽  
Health Studies ◽  
The University ◽  
First Time ◽  
Education Process

Abstract The course Nursing Procedures and Interventions is being taught at the Faculty of Medicine of the University of Ostrava within the scope of the study programs Nursing and Midwifery. Despite the fact that the main part of the course is dedicated to the practical medical skills, it is suitable not only for students of full-time studies, but also for students of combined studies. The teaching of the course is organizationally demanding, because of which a Moodle e-learning course has been developed. The article describes the aims and the education process of the course Nursing Procedures and Interventions with the support of e-learning. It deals especially with the testing of theoretical knowledge of students within the e-learning course, which has three phases - when introduced to the course for the first time, during the course, and at the end of it. The article presents the comparison of the test results of different education periods. The article also deals with the more complicated issues and parts of the course and also compares students’ results with regard to their previous specialty - if they already encountered any kind of health studies or if the course is their first experience with this kind of education.

Transient Behavior Analysis of Induction Generator at Three-Phase Fault Condition

2007 ◽  
Vol 8 (2) ◽  
Author(s):  
Tomonobu Senju ◽  
Ryo Kuninaka ◽  
Toshiaki Kaneko ◽  
Yoshitaka Miyazato ◽  
Atsushi Yona ◽  
...  
Keyword(s):  
Block Diagram ◽  
Transient Behavior ◽  
Induction Generator ◽  
Matlab Simulink ◽  
System Equation ◽  
Wind Generators ◽  
Induction Generators ◽  
Three Phase ◽  
Analytical Formulas ◽  
Effective Use

In recent years, renewable energy generation has been coming up for effective use of natural energy, such as wind energy. Induction generators consisting squirrel-cage rotors are widely used as wind generators because of their salient features like robust rotor design, simplicity in the construction, maintenance free operation, etc. In this paper, it is derived that the transient current, electromechanical torque, and active power taking into account rotor speed change of induction generators at three-phase fault conditions. The output equations of the induction generator has nonlinearity, and the speed-time characteristic in a fault period is also expressed by the nonlinear equation. The approximation to derive analytical formulas for transient conditions is proposed, and the transient behavior of the induction generator is analyzed by the developed equations. The simulation block diagram in MATLAB/SIMULINK is constituted using the system equation in consideration of the nonlinearity of the induction generator. The simulation results obtained from each theoretical analysis are in close agreement with that of results obtained using MATLAB/SIMULINK simulation. Furthermore, theoretical discussion also developed to determine the fault phase angle and the time at which maximum transient currents flow in the system.

Research of Tight Band Coiling Dynamics

2006 ◽  
Vol 113 ◽  
pp. 271-276
Author(s):  
Vytautas Kepalas ◽  
Česlovas Ramonas ◽  
Stanislovas Marcinkevičius ◽  
Romualdas Konstantinas Masteika
Keyword(s):  
Steady State ◽  
Mathematical Models ◽  
Transient Response ◽  
Relative Elongation ◽  
Block Diagram ◽  
Digital Model ◽  
Tension Force ◽  
Elastic Band ◽  
Response Curves ◽  
Matlab Simulink

Purpose of the work is to analyze tight band coiling machine dynamics for processing wire, thread, texture, paper, leatherette or other elastic bands with a steady-state tension force. Band coiling block diagram and mathematical models for cases with one and two regulators has been made for research of elastic band coiling processing using software MATLAB-SIMULINK. Transient response curves of linear speeds in the band feed section and in a coiling machine, of band tension force and of relative elongation are presented. The digital model was used for obtaining parameters of controllers when parameters of feedback and regulators have been changing.

The Simulation Analysis and Modeling of the Coupling Vibration Absorber System for the Wheel Loader

2011 ◽  
Vol 121-126 ◽  
pp. 2358-2362 ◽  
Author(s):  
Zhun Wang
Keyword(s):  
Control System ◽  
Research And Development ◽  
Dynamic Models ◽  
Simulation Analysis ◽  
Vibration Reduction ◽  
Simulation Software ◽  
Vibration Absorber ◽  
Coupling Vibration ◽  
Matlab Simulink ◽  
Wheel Loader

In accordance with the Coupling vibration absorber system, introduced to reduce the vibration of the wheel loader at driving, designed are two dynamic models for the loaders either with the application of vibration absorber system or without that of it. The simulation analysis of the vibration reduction, with the help of the simulation software Matlab/ Simulink, shows that the vibration absorber system may reduce not only the vehicle vibration effectively but also that of the work device, thus providing the basis for the further research and development of the riding control system.

scholarly journals DC Motor Speed Control using Internal Model Controller: Industrial Transformation Strategy

2020 ◽  
Vol 9 (5) ◽  
pp. 300-306
Keyword(s):  
Transfer Function ◽  
Pid Control ◽  
Pid Controller ◽  
Internal Model ◽  
Dc Motor ◽  
Motor Speed ◽  
Matlab Simulink ◽  
Dc Motors ◽  
Control Schemes ◽  
Motor Model

In developed nations, industries are made to function at control engineering costs via the use of appropriate control schemes for dc motors. This paper introduces the role played by dc motors in industries thereby necessitating the analysis and performance validation of dc motor in Internal Model Control (IMC) scheme as against the Proportional– Integral–Derivative (PID) control schemes that is widely used in most industries. Theories on dc motor model, PID and IMC controller were detailed to paved the way for the methodical approach of getting specifications and transfer function for a typical dc motor (model RMCS-3011). Matlab/Simulink software was then used to tune the PID controller for the purpose of finding the values of PID gains that meets the design requirements to achieve best performance, thereby enabling the simulation of the PID controller. Using Matlab m-file environment, IMC controller transfer function was generated and simulated. The IMC controller transfer function aimed at achieving a unity gain that tracks the set-point was approximately realized. In the realization process, it was obvious that a filter is required. The aim of this work is to evaluate the performance of the IMC controller over PID controller. Simulated plots in Matlab-Simulink using the PID gains for the PID controller, and time constants and filter order for the IMC were presented. The quantitative results of the IMC method when compared with that of PID control provides a commendable performance. However, the performance in terms of rise time is small and preferred with the use of Matlab-Simulink tuned PID controller. Conclusively, IMC controller would be the preferred controller where the robustness and accuracy of the dc motor speed control counts more than faster response

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