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Внешние и энергетические характеристики двенадцатифазных компенсированных выпрямителей с векторным управлением

Внешние и энергетические характеристики двенадцатифазных компенсированных выпрямителей с векторным управлением

Abstract

Представлена схема двенадцатифазного компенсированного выпрямителя с векторным управлением и компенсирующим устройством, фильтрующим в коммутирующие конденсаторы в определенной пропорции как четно-, так и нечетно-кратные гармоники входных токов преобразовательных блоков (комбинированным компенсирующим устройством). Исследованы квазиустановившиеся электромагнитные процессы, протекающие в данном преобразователе в основном режиме, численно-аналити¬ческим методом при общепринятых для мощных преобразователей допущениях. Обобщена теория электромагнитных процессов, протекающих в компенсированном выпрямителе, на случай двенадцатифазной схемы при наличии векторного управления. Получены внешние и энергетические характеристики выпрямителя. Сделан вывод о возможности уменьшения суммарной установленной мощности компенсирующего устройства в случае его комбинированного исполнения, а также о расширении диапазона токов нагрузки, при которых выпрямитель работает в основном режиме, по сравнению с традиционными преобразователями, в которых компенсирующее устройство работает на частоте питающей сети.

A circuitry of twelve-phase compensated rectifier with vectorial control is presented. The circuitry includes compensating device that filters in commutating capacitors both odd-multiple and even-multiple harmonics of rectifier assembliy input currents in certain ratio (combined compensating device). Quasi-steady state electromagnetic processes of the rectifier in basic mode were studied using high-power converter assumptions. The study was performed by means of numerical analytic method. The theory of steady-state electromagnetic processes of compensated rectifier was generalized for the case of twelve-phase rectifier with vectorial control. Output and power performances of the rectifier were determined. The paper presents conclusions about possible decrease of compensating device total capacity at combined usage, and output current range expansion for basic mode in comparison with network frequency compensating devices.

Keywords

КОМПЕНСИРОВАННЫЙ ВЫПРЯМИТЕЛЬ, ВЕКТОРНОЕ УПРАВЛЕНИЕ, КОМПЕНСИРУЮЩЕЕ УСТРОЙСТВО, ВНЕШНИЕ ХАРАКТЕРИСТИКИ, ЭНЕРГЕТИЧЕСКИЕ ХАРАКТЕРИСТИКИ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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