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- Title
Innovative local control of alternating voltage.
- Authors
Ukrayinets, Anatoliy; Shesterenko, Volodymyr
- Abstract
Introduction. It is shown the effect of low-quality current on electromagnetic and technical losses that is results in increasing expenses on power and energy, reduction of the equipment operating cycle, process losses, which include reducing production, decreasing product quality and production of low-quality products. Research and methods. The basic aspects of the analysis are nonsinusoidal voltage that depends on the network voltage. Expediency of using Fourier series is shown. Results and discussion. The voltage deviation is one of the major problems in power supply systems of industrial enterprises. Its solution is a priority task in the design of power supply systems. The way to improve voltage quality is suggested. The use of semiconductor devices eliminates several disadvantages of mechanical switching device (low speed, low resource) and leaves its main advantage, i.e. sinusoidal nature of voltage curve form. The possibility of using semiconductor devices to perform switching without distortion sinusoid in the time of passing zero allows eliminating the major drawback of mechanical switches their discreteness. This allows to create voltage stabilizers of any degree of accuracy, based on the principle of discrete control by switching transformer unsolders without breaking the current and distorting voltage curve. This explains the set of development directions both in this country and abroad aimed at replacement of contactor switch at currently working RUL (regulation under load) devices on thyristor. The systematic approach to voltage regulation that allows increasing economic performance of energy sources is introduced. The most promising is the regulation method acting on voltage and reactive power. Conclusions. We recommend using the results at food industry enterprises in order to improve the voltage quality. The diagram of the device, which could improve the quality of voltage in local area networks, is shown.
- Subjects
ELECTRIC potential; ELECTROMAGNETISM; PRODUCT quality; FOURIER series; SEMICONDUCTOR devices
- Publication
Ukrainian Journal of Food Science, 2017, Vol 5, Issue 2, p305
- ISSN
2310-1008
- Publication type
Article
- DOI
10.24263/2310-1008-2017-5-2-14