name
Grigorash Oleg Vladimirovich
Scholastic degree
•
Academic rank
professor
Honorary rank
—
Organization, job position
• Kuban State Agrarian University
Заведующий кафедрой
Research interests
1. Разработка автономных систем электроснабжения с использованием возобновляемых источников энергии. 2. Разработка методик оценки качества подготовки студентов и эффективности деятельности профессорско-преподавательского состава.
Web site url
—
Current rating (overall rating of articles)
0
TOP5 co-authors
Articles count: 65
Сформировать список работ, опубликованных в Научном журнале КубГАУ
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RESEARCH WORK IS ONE OF THE IMPORTANT QUALITY ASPECTS OF EDUCATIONAL PROCESS
Description
The article shows that the quality of students depends on the qualifications of the teaching staff, which has a direct correlation with the results of research work
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METHODOLOGY OF EXPERIMENTAL RESEARCHES
Description
Today, the questions of accelerated development of science are essential; it has become a real productive force, the most powerful factor influencing the level of scientific and technical progress. The most important part of the research work is experimental studies. The article reveals the methodology of experimental research involving the content of laboratory and industrial research, main stages, as well as graphic presentation and the analysis of the results of studies; as well as the methodology for the general analysis of theoretical and experimental studies, the sequence of introduction of the results of the research and criteria for evaluating their effectiveness. The main issues of the methodology of experimental researches discussed in the article will increase the effectiveness of scientific and research work of scientific collectives of organizations and companies
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METHODICAL TRAINING – THE MAIN CON-DITION FOR TEACHING EXCELLENCE
Description
The article describes the characteristics of the management and conduct of teaching sessions with teachers of the department to improve their pedagogical skills, as well as the quality of teaching
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THE METHODS OF ASSESSING THE QUALITY OF KNOWLEDGE AND LABOR POTENTIAL OF UNIVERSITY GRADUATES
Description
Key indicators for employers are the quality of knowledge of graduates and their readiness for practice. The article suggests some methods of assessing the quality of knowledge and labor potential of graduates. Because the quality of training generally depends on the qualification of the faculty, the quality of students' knowledge is to be determined with the results of their learning and the qualification of the teachers who conducted their classes and supervised their final qualifying works. The author's analytical expressions for determining the quality of knowledge and labor potential of graduates, allow employers to choose specialists particularly required for their industry. However, for employers the rate of knowledge and labor potential of graduates of universities are indicative rates. In order to determine the choice of specific graduates, on the University's website starting from the 3rd year of a bachelor degree, we should post the information about the rating of individual students on educational and labor activity. The ratios determine the quality of knowledge of graduates and their labor potential, as well as reviews of employers should be the main indicators for the Ministry of education and science of the Russian Federation, on the basis of which we may assess the effectiveness of the universities, determine their ranking and generate a state order for training of specialists in higher education institutions
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THE METHOD OF CALCULATION OF FILTERS FOR STATIC CONVERTERS OF ELECTRIC POWER
Description
One of the important issues in the design of static converters of electric power, i.e. rectifiers and inverters, is to calculate the parameters of the output and the input filters. Output filters are designed to improve the quality of output voltage of inverters, and input filters are created to reduce ripple of the input voltage of the converter that occur when commuting power semiconductor devices, and smoothing fluctuations of the current consumed from the power supply. The complexity of analytical description of the harmonic composition of the output and the input of the voltage rectifiers and inverters makes it difficult to develop some accurate methods for calculating the parameters of their filters. At the same time, considering the discreteness of the number of possible parameters of real elements of the filter, the practical value of such techniques with a high analysis accuracy of the harmonic components is negligible. In this article, we suggest the technique of the simplified calculation of output and input filters for passive LC filters rectifiers and inverters. At the same time, the practice of mathematical modeling and design of transducers has shown that the calculations of the filter parameters for rectifiers and inverters are not significantly different from each other. Therefore, the analytical expressions for calculation of the filter parameters of rectifier used ripple coefficient, and if necessary the calculation of the filters of the inverter, instead of the pulse number in the formula can be substituted with the value of the harmonic; in addition, we have also taken into account the value of the load power factor
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METHOD OF PLANNING OF TRAINING LOAD FACTORED IN RESULT OF WORK OF TEACHERS
Description
This article proposes a method of planning of academic teaching staff training load based on teaching and guiding and research work in the accounting period, which allowing to increase the performance indicator
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METHODOLOGY TO EVALUATE THE EFFECTIVENESS OF THE FACULTY AND THE DEPARTMENT
Description
In the article we consider the technique of evaluating the performance of the faculty and the department for educational, methodical, scientific research and the development of material and technical base
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Description
This article presents the methods for estimating the quality of individual training of students, clusters and classes, as well as the effectiveness of the training activity of academic teaching staff
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THE CONCEPT OF UNINTERRUPTED POWER SUPPLY SYSTEMS
Description
We have revealed the main reasons for interruptions in power supply to consumers of electricity. To improve the reliability and the efficiency of power supply for responsible consumers, we have proposed to develop energy efficient combined energy-saving systems for uninterrupted power supply with use of renewable energy sources. The article lists major principles of the development of such systems; it shows the necessity of constructing a generalized schema that contains the possible types and the sources of electric power converters. It also reveals the modern requirements to systems of uninterrupted energy supply. To improve the operational and technical characteristics of the uninterruptible power supply, it has been proposed to use a new circuitry that includes a contactless power generators, the direct frequency converters used to stabilize the voltage and frequency of the current generators of wind turbines, static converters made with the use of single-phase transformers with rotating magnetic field, universal static converters that can operate in the regimes of known types of converters. The article presents features of the modular construction of systems of uninterrupted energy supply and optimization of their structural decisions on key performance criteria. It shows the algorithm of synthesis of structural designs of combined systems of uninterrupted power supply. An important step for further research with the aim of improving operational and technical characteristics of the combination of uninterrupted power supply systems is the mathematical modeling of physical processes in power circuits of the system in both normal and emergency modes of operation
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CONVERTERS OF UNINTERRUPTIBLE POWER SUPPLY WITH IMPROVED PERFORMANCE
Description
The article discusses structural schematics power circuits and voltage stabilization systems of converters with improved operational and technical characteristics
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