DOI: https://doi.org/10.15407/techned2019.02.015

INCREASING OF THE EFFICIENCY OF POWER ELECTRONICS DEVICES BY THE CONTROL OF CHARGING TIME OF THE CAPACITORS IN THEIR CIRCUITS

Authors
I.V. Volkov¹, V.I. Zozulev¹, O.I. Khrysto^2
1 – Institute of Electrodynamics of National Academy of Sciences of Ukraine,
pr. Peremohy, 56, Kyiv, 03057, Ukraine,
e-mail: Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript
² – Institute of Pulse Processes and Technologies of National Academy of Sciences of Ukraine,
pr. Bohoiavlenskyi, 43-A, Mykolaiv, 54018, Ukraine

Abstract

A method for controlling the output parameters (voltage and amplitude of pulses) of devices of power electronics by controlling the charging time or recharging of capacitors included in these devices and using the chains of their capacitive filters is proposed. Controlled rectifiers based on combining the Gretz and Latour circuits and a magnetic - semiconductor high-voltage pulse generator with such a rectifier at its input are considered. It is shown that the application of the proposed control method makes it possible to increase the rectified voltage by almost two times without using a transformer and to obtain a "hard" external characteristic of the rectifier. It has been proved possible to obtain any ratedl value of rectified voltage in the range from 300 to 600 V with a single-phase 220 V supply, which extends the capabilities of developers of converter devices. References 5, figures 4, table 1.

Key words: Latour-Grets rectifier, secondary power supply, external characteristic, voltage stabilization, magnetic-semiconductor pulse generator MSGP.

Received:    05.03.2018
Accepted:    30.05.2018
Published:  19.02.2019

References

1. Volkov I.V., Zozulev V.I., Kuskova N.I., Khrysto O.I. Development of principles for constructing a pre-transformer part of magnetic-semiconductor pulse generators. Pratsi Instytutu elektrodynamiky Natsionalnoi Akademii Nauk Ukrainy. 2017. No 47. Pp. 45-53. (Rus)
2. Holubev V.V. Pulse conversion of alternating voltage. Kyiv: Naukova dumka, 2014. 248 p. (Rus)
3. Zozulev V.I. Devices of converter technique based on the reconfiguration of distributed structures. Pratsi Instytutu elektrodymamiky Natsionalnoi Akademii Nauk Ukrainy. 2017. No 46. Pp. 71-80. (Rus)
4. Yrvynh M. Hottlyb. Power supplies. Inverters. Converters. Linear and pulsed stabilizers. Moskva: Postmarket, 2002. 544 p. (Rus)
5. Rashid M.H. Power Electronics. N.Y. Academic Press, 2012. 895 p.

PDF