scholarly journals TRAINING OF PRACTICAL ENGINEERING SKILLS IN THE CONTEXT OF THE COVID-19 PANDEMIC

2021 ◽  
Vol 4 (3) ◽  
pp. 18-27
Author(s):  
Petru Todos ◽  
◽  
Petru Virlan ◽  
Ghenadie Tertea ◽  
◽  
...  
Keyword(s):  
Electrical Engineering ◽  
Asynchronous Motor ◽  
Virtual Laboratory ◽  
Laboratory Work ◽  
Remote Laboratory ◽  
Electrical Circuits ◽  
Electric Drive System ◽  
Three Phase ◽  
Practical Engineering ◽  
Step Algorithm

This paper proposes a solution for carrying out laboratory work in the strict conditions of the Covid - 19 pandemic. The traditional laboratory can be replaced by the virtual laboratory or the remote laboratory, depending on the requirements of the course and the skills required for the training of engineers. The environment for performing alternative laboratory work (Virtual or Remote Laboratory) is the Multisim software from National Instruments. The student with the help of this software can make the electrical circuits provided in the curriculum of the discipline of General Electrical Engineering. This paper presents four examples of alternative laboratory works for the field of electrical engineering, namely, three-phase electrical circuits, static electrical converters, asynchronous motor and electric drive system. The student can simulate the required regimes in the laboratory guide and is free to simulate other regimes at his own initiative. The paper ends with the proposal of a step-by-step algorithm, which can be a guide for any teacher who wants to organize alternative laboratory work.

Methods of Laboratory Work in Students Majoring in 56.05.01 Logistics Discipline “Electrical Engineering and Electronics»

2018 ◽  
Vol 6 (6) ◽  
pp. 32-36
Author(s):  
Роман Фокин ◽  
Roman Fokin ◽  
Александр Кирьянов ◽  
Aleksandr Kir'yanov
Keyword(s):  
Electrical Engineering ◽  
Statistical Processing ◽  
Computer Models ◽  
Virtual Laboratory ◽  
Laboratory Work ◽  
Alternative Form ◽  
Measuring Instruments ◽  
Traditional Form ◽  
Advantages And Disadvantages

The article considers the issues of organization of laboratory work in the Academy of the Federal penitentiary service of Russia of the students enrolled in the specialty 56.05.01 Logistics. The results of the pedagogical experiment to determine the eff ectiveness of various methods of laboratory work on the discipline “Electrical engineering and electronics” are given. The article considers the methods of organization of laboratory work in the traditional form using real equipment and measuring instruments, as well as in an alternative form in the form of virtual laboratory work using computer models of devices, equipment and measuring instruments. The sequence of stages of the pedagogical experiment is described. The advantages and disadvantages of these methods of organization of laboratory work are given. According to the results of statistical processing of the results, conclusions about the eff ectiveness of the methods of organization of laboratory work are made.

Laboratory Work in Teaching Basic Three-Phase Electrical Circuits

2010 ◽  
Vol 47 (3) ◽  
pp. 293-306
Author(s):  
Alfonso Bachiller-Soler ◽  
Pedro J. Martínez-Lacañina ◽  
Darío Monroy-Berjillos
Keyword(s):  
Laboratory Work ◽  
Electrical Circuits ◽  
Three Phase

The Software Solution of the Overload Capacity of a Three-Phase Asynchronous Motor

2020 ◽  
Author(s):  
Rano Gazieva ◽  
Sharafidin Aynakulov ◽  
Aziz Nigmatov ◽  
Barna Rakhmankulova ◽  
Otabek Khafizov ◽  
...  
Keyword(s):  
Asynchronous Motor ◽  
Three Phase ◽  
Overload Capacity

scholarly journals Geometric Algebra Framework Applied to Symmetrical Balanced Three-Phase Systems for Sinusoidal and Non-Sinusoidal Voltage Supply

Mathematics ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 1259
Author(s):  
Francisco G. Montoya ◽  
Raúl Baños ◽  
Alfredo Alcayde ◽  
Francisco Manuel Arrabal-Campos ◽  
Javier Roldán Roldán Pérez
Keyword(s):  
Geometric Algebra ◽  
Dimensional Euclidean Space ◽  
Active Components ◽  
Electrical Circuits ◽  
Current Harmonics ◽  
Operation Conditions ◽  
Multiple Phase ◽  
Three Phase ◽  
Phase Systems ◽  
Definition Of

This paper presents a new framework based on geometric algebra (GA) to solve and analyse three-phase balanced electrical circuits under sinusoidal and non-sinusoidal conditions. The proposed approach is an exploratory application of the geometric algebra power theory (GAPoT) to multiple-phase systems. A definition of geometric apparent power for three-phase systems, that complies with the energy conservation principle, is also introduced. Power calculations are performed in a multi-dimensional Euclidean space where cross effects between voltage and current harmonics are taken into consideration. By using the proposed framework, the current can be easily geometrically decomposed into active- and non-active components for current compensation purposes. The paper includes detailed examples in which electrical circuits are solved and the results are analysed. This work is a first step towards a more advanced polyphase proposal that can be applied to systems under real operation conditions, where unbalance and asymmetry is considered.

Intelligent fault diagnosis of three-phase asynchronous motor based on PCA-SVCNN

2021 ◽  
Vol 9 (2) ◽  
pp. 66
Author(s):  
Wang Li ◽  
Yue Liu ◽  
Junyong Sun ◽  
Lingzhi Yi ◽  
Jian Zhao ◽  
...  
Keyword(s):  
Fault Diagnosis ◽  
Asynchronous Motor ◽  
Intelligent Fault Diagnosis ◽  
Three Phase

scholarly journals A new approach to three-phase asynchronous motor model for electric power system analysis

2021 ◽  
Vol 12 (4) ◽  
pp. 2083
Author(s):  
Laura Collazo Solar ◽  
Angel A. Costa Montiel ◽  
Miriam Vilaragut Llanes ◽  
Vladimir Sousa Santos
Keyword(s):  
Power Systems ◽  
Reactive Power ◽  
Mechanical Load ◽  
Asynchronous Motor ◽  
Electrical Power ◽  
Variable Load ◽  
Electrical Power Systems ◽  
Active And Reactive Power ◽  
Voltage Variation ◽  
Three Phase

In this paper, a new steady-state model of a three-phase asynchronous motor is proposed to be used in the studies of electrical power systems. The model allows for obtaining the response of the demand for active and reactive power as a function of voltage and frequency. The contribution of the model is the integration of the characteristics of the mechanical load that can drive motors, either constant or variable load. The model was evaluated on a 2500 kW and 6000 V motor, for the two types of mechanical load, in a wide range of voltage and frequency, as well as four load factors. As a result of the evaluation, it was possible to verify that, for the nominal frequency and voltage variation, the type of load does not influence the behavior of the powers and that the reactive power is very sensitive to the voltage variation. In the nominal voltage and frequency deviation scenario, it was found that the type of load influences the behavior of the active and reactive power, especially in the variable load. The results demonstrate the importance of considering the model proposed in the simulation software of electrical power systems.

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