Keywords
capacitor charge
capacitor initial voltage
charge efficiency
How to Cite
Abstract
An analysis of the transient processes during aperiodic charging of the capacitive energy storage (CES) of the electrical discharge installation (EDI) from the source of direct voltage (SDV) of the USDV was carried out under the condition of changing the initial voltage of the CES at the time of the start of charging. The dependences of energy characteristics (dose of energy that powers the capacitor, energy losses and efficiency) on the magnitude and sign (polarity) of the initial voltage CES were obtained. The energetically appropriate CES charge modes were determined. It is substantiated that increasing the initial voltage of the capacitor leads to an increase in the charging efficiency. The analysis of the ratio between the dose of energy that powers the CES during one charge cycle W*C and the energy of losses W*losses showed that the ratio W*C / W*losses increases with a change in the voltage U0C from –USDV to + USDV due to the fact that the energy of losses W*losses decreases faster than the dose of energy that powers the CES. References 11, Fig. 3, table 1.
References
Fryungel F. Pulse technique. Generation and application of capacitor discharges. Moscow: Nauka, 1970. 320 p. (Rus)
Pentegov I.V. Fundamentals of the theory of charging circuits of capacitive energy storage devices. Kyiv: Naukova Dumka. 1982. 422 p. (Rus)
Vovchenko A.I., Tertilov R.V. Synthesis of nonlinear parametric capacitive energy sources for a discharge pulse tech-nologies. Zbirnyk naukovyh prats Natsionalnogo universytetu korablebuduvania. Mykolaiv, 2010. No 4. Pp. 118–124. (Rus)
Kravchenko V.I., Petkov А.А. Parametrical synthesis of high-voltage pulse test devices with capacitive energy storage. Electrical Engineering & Electromechanics. 2007. No 6. Pp. 70–75. URI: http://dspace.nbuv.gov.ua/handle/123456789/142945 (Rus)
Nguyen P.K., Sugho J., Berkowitz A,E. MnBi particles with high energy density made by spark erosion. J. Appl. Phys. 2014. Vol. 115. Iss. 17. Pp. 17A756-1. DOI: https://doi.org/1.4868330
Casanueva R., Azcondo F.J, Branas C., Bracho S. Analysis, design and experimental results of a high frequency power supply for spark erosion. IEEE Transactions on Power Electronics. 2005. Vol. 20. Pp. 361–369. DOI: https://doi.org/10.1109/TPEL.2004.842992
Vovchenko O.I., Demydenko L.Yu., Blashchenko O.D., Starkov I.M. Improving the efficiency of high-voltage electric discharge installations which use exothermal dispersed media. Tekhnichna Electrodynamica. 2019. No 5. Pp. 77–82. DOI: https://doi.org/10.15407/techned2019.05.0077 (Rus)
Ochin P., Gilchuk A.V., Monastyrsky G.E., Koval Y., Shcherba A.A., Zaharchenko S.N. Martensitic Transfor-mation in Spark Plasma Sintered Compacts of Ni-Mn-Ga Powders Prepared by Spark Erosion Method in Cryo-genic Liquids. Materials Science Forum, 2013. Vol. 738–739. Pp. 451–455. DOI: https://doi.org/10.4028/www.scientific.net/MSF.738-739.451
Kravchenko V.I., Petkov А.А. Parametrical synthesis of high-voltage pulse test devices with capacitive energy storage. Electrical Engineering & Electromechanics. 2007. No 6. Pp. 70–75. URI: http://dspace.nbuv.gov.ua/handle/123456789/142945 (Rus)
Zeveke G.V., Ionkin P.A., Netushil A.V., Strakhov S.V. Fundamentals of Circuit Theory. Textbook for universi-ties. Moscow: Energy, 1975. 752 p. (Rus)
Grigoriev O.P., Zamiatin V.Ya., Kondratiev B.V., Pozhidaev S.L. Thyristors: Grigoriev O.P., Zamyatin V.Ya., Kondratyev B.V., Pozhidaev S.L. Thyristors: Handbook. Moscow: Radio i Sviaz', 1990. 272 p. (Rus)
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright (c) 2024 A.A. Shcherba, N.I. Suprunovska