ANALYSIS OF CONVERTERS SYNCHRONOUS FREQUENCY WITH THE COMPOSITION OF WEAPONS AND MILITARY EQUIPMENT FOR THEIR MODERNIZATION, TAKING INTO ACCOUNT THE EXPERIENCE OF ENVIRONMENTAL PROTECTION
DOI:
https://doi.org/10.26906/SUNZ.2019.2.042Keywords:
synchronous frequency converter, bearing friction coefficient, mechanical losses, uninterrupted operation, increase in operating time of synchronous frequency convertersAbstract
The article discusses a method for upgrading a synchronous frequency converter based on the improvement of bearing assemblies. The necessary reliability and mobility of power supply is provided by autonomous power sources, along with synchronous frequency converters (PRN). Such converters should provide the necessary parameters of alternating current, and therefore when choosing a frequency inverter, it is necessary to compare their technical data, which should be taken into account in the list of advantages. One of the main mechanisms, on which it is necessary to pay attention to the bearing unit, which can significantly worsen the energy performance in the frequency response system. Where the energy losses in bearings consist mainly of friction losses resulting from slipping at the points of contact of the rolling bodies with rings and separator, the imperfect quality of the material of the rolling bodies and rings, as well as mechanical losses of the lubricant. They are not constant in time and are determined by the design of the bearing, its modes of operation and lubrication, and therefore the power is to some extent spent on overcoming friction in the bearing. The purpose of the article. Determination of the influence of the coefficient of friction of bearings on the work of frequency converters and provide suggestions for the modernization of transducers of synchronous frequency. Conclusions. New bearings are proposed to significantly reduce the coefficient of friction while increasing the operating time of synchronous frequency converters. Thanks to the modernization of the PSF it is possible to ensure the stability of the frequency of the converted voltage and provide the necessary reliability in the supply of electricity and reduce losses by almost 1,5 times. The proposed technological solution to improve the PSF with the new types of bearings, they have a significant drawback due to the difficulties that may arise in the manufacture, but have a relatively high life span. Improvement of the bearing is reserved for changing the design with the storage of technical requirements for them, but without a separator and lubricants (lubrication).Downloads
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