Abstract:

In this article the experience by the on-line teaching of voltage stabilizers, which applied during the Covid-19 pandemic, is presented.

It is known that in order to an equipment to function, its nodes and elements need to be supplied with electricity. The parameters of the power supply - voltage, current, power, etc., are precisely defined according to the scheme used and the needs of the powered device.

That's why the study of power supplies is an important part of the training of electrical engineering students. If necessary, they must be able to calculate suitable voltage sources to supply the devices they have designed.

An opportunity to simplify mathematical calculations is the use of the software product MatLab. In this paper a program is presented that calculates certain popular in practice electrical scheme of voltage stabilizers when entering the desired parameters of the source.

The use of simulations models in practical training in all technical disciplines make the educational system of each country modern and innovative. Incorporating research into a virtual environment is particularly useful in pandemic training. The developed methodology also includes simulation of some of the research in addition to the theoretical acquaintance with the material.

The methods proposed in this article were tested in the online training during the quarantine because of Covid-19 pandemic in the disciplines, studied by students majoring in "Electrical Engineering" or "Computer and communication systems" at the Faculty of Physics and Technology at the University of Plovdiv “Paisii Hilendarski” (Bulgaria). Observations are that the use of simulations models of the voltage stabilizers is useful, because the future electrical engineers can test the device they designed in a safe environment. This helps the students to work more confidently with the measuring equipment, too.

Keywords:

Education, Computer Simulation, Electrical Engineering, voltage stabilizers.