Open AccessDESFĂȘURAREA VIRTUALĂ A LUCRĂRILOR DE LABORATOR DE MAȘINI ELECTRICE ÎN MEDIUL DE CALCUL MATLAB -SIMULINK
Author(s) -
Leonard-Marius Melcescu
Publication year - 2021
Publication title -
actualităţi şi perspective în domeniul maşinilor electrice
Language(s) - English
Resource type - Journals
ISSN - 1843-5912
DOI - 10.36801/apme.2020.1.12
Subject(s) - matlab , computer science , transformer , electrical network , simulation , control engineering , electrical engineering , voltage , programming language , engineering
"The paper presents the author's experience in supporting laboratory applications in the Electrical Machines course during the pandemic caused by the SARS-CoV-2 virus, when teaching hours were conducted online, like activities specific to the distance learning. The experiments in the laboratory works are simulated in the MATLAB-Simulink computing environment by using and adapting the existing transformer and electrical machine models in the SimPowerSystem library. The design of numerical applications was made so that the implementation of electrical diagrams is performed by students, given that they have no experience in numerical modeling of electrical machines. Several methods for obtaining the results from numerical experiments are presented, which allow to ensure a balance between the number of data specific to each experiment and the calculation effort required, so that the experiments can be performed in the time allotted to a laboratory work.Paper purpose: Description of practical teaching aspects related to the simulation classical tests of the electrical machines in MATLAB- Simulink, in order to virtualize the laboratory works and to adapt them to on-line distance learning.Elements of originality: 1. Developing models for adjustable circuit elements and instrumentation required for simulation testing of electrical machines in steady-state regime. 2. Development of the more accurate DC electric machines model that considers the magnetic circuit hysteresis. 3. Analysis of the methods of using the simulation schemes for obtaining in a reasonable time the data that allow the representation of the operating characteristics."