name
Bondarchuk Andrey Viktorovich
Scholastic degree
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Academic rank
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Honorary rank
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Organization, job position
• Kuban State Agrarian University
Research interests
Разработка автономных источников электроэнергии для АПК
Web site url
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Current rating (overall rating of articles)
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TOP5 co-authors
Articles count: 2
Сформировать список работ, опубликованных в Научном журнале КубГАУ
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SOURCES OF UNINTERRUPTED AND AUTONOMOUS POWER SUPPLY
Description
The article describes the main block diagrams of three types of uninterruptible power supply: backup; interactive; double conversion. The main functions are: the function backup or emergency source of electrical power; the function of protective devices (from an overload currents and short-circuit); improving the quality of the power supply voltage. Alsoб we have disclosed the features of the advantages and disadvantages of uninterruptible power supplies three groups: Off-Line / Stand-By / back-up UPS (passive - reserve); Line-Interactive (line interactive type); On-Line. The article discloses new approaches to structural and schematic-based uninterruptible power supply, including at use of renewable energy, so that the failure of one of the sources does not lead to exit from the operation of the entire of power supply system. As a rule, such systems are built on a modular principle. It is shown that now for remote users from external networks is advisable to apply a system autonomous power supply, representing the totality of sources and converters of electric power, ensuring uninterrupted power supply to consumers. We have presented a typical structure of autonomous systems and given an option of the block diagram of the system and are given explanations and principles of its work. Significantly improves performance reliability of autonomous systems using the modularity of its main functional units. In addition, to increase the efficiency of the system can be through the use in the construction of transformers with static converters rotating magnetic field. To improve the weight, which is important for the transport systems, it is necessary to use links with the intermediate high-frequency electric power conversion in static converters
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FREQUENCY CONVERTERS WITH IMPROVED PERFORMANCE
Description
In the autonomous power supply systems there are widely used frequency converters that are able to simultaneously increase or decrease the frequency of the current and voltage stabilizing power supply. These positive properties of frequency converters can improve the operational and technical characteristics of the autonomous power supply system in the complex. The article suggests a functional diagram of a frequency converter performed on reversible rectifiers. We have presented timing diagrams illustrating the principle of its operation. The article also deals with two functional scheme of direct frequency converters executed on single-phase, threephase transformer with a rotating magnetic field. The principle of operation of these schemes has been also discussed in the timing diagrams. The proposed technical solutions for frequency converters contain a smaller amount of power electronic devices that make it possible, thereby reducing the level of electromagnetic interference, increase the efficiency and reliability of performance inverters. The considered scheme of frequency converters, can improve the technical characteristics of the autonomous power supply systems in the complex. We can significantly improve the performance of power systems through the use of modular aggregating principle of the basic functional units of an autonomous system
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doc 186.295kb