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Dynamic properties of system «rectifier with buck converter - load»

Dynamic properties of system «rectifier with buck converter - load»

Abstract

The introduction of high-speed rolling stock, the growth of passenger and freight transportation are placing ever greater demands for power supply devices and electric energy quality in a contact network. The application of direct current at traction substation along with uncontrolled diode rectifier of a controlled buck converter allows adjusting the average value of rectified voltage in the contact system. In addition, using the buck converter in a closed structure allows compensating the unwanted harmonic components of the load voltage. The need for investigating the dynamic properties of the “rectifier buck converters - load” system is specified by the possibility of realizing the finite duration processes in the voltage regulation channel, allowing the load voltage harmonic compensation on the feedback circle. The buck converter, operating in the pulse width modulation mode, allows using it as a wideband active filter. All the above requires a mathematical description of dynamic processes in the described system for the task solution. The obtained system of equations allows describing the dynamic processes in rectifying installation with width-controlled BC.

В статье выполнен анализ динамических свойств системы «выпрямитель с вольтодобавочным преобразователем – нагрузка». Полученные уравнения динамики данной системы позволяют включить выпрямитель с вольтодобавочным преобразователем в замкнутую структуру с целью улучшения его электромагнитной совместимости с контактной сетью.

У статті виконаний аналіз динамічних властивостей системи «випрямляч з вольтододавальним перетворювачем – навантаження». Отримані рівняння динаміки даної системи дозволять включити випрямляч з вольтододавальним перетворювачем до замкнутої структури з метою покращення його електромагнітної сумісності з контактною мережею.

Keywords

УДК 621.311.442.4, buck converter; dynamic properties; automatic control system; pulse width converter, вольтодобавочный преобразователь; динамические свойства; система автоматического регулирования; широтно-импульсный преобразователь, випрямляч; вольтододавальний перетворювач; динамічні властивості; система автоматичного регулювання; широтно-імпульсний перетворювач

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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
Average
Average
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