Abstract
It were analyzed the processes of charging the capacitive electro-technical storage (CES), which can be the electrical insulation of modern high -voltage equipment (in particular power cables) during the current monitoring of its technical condition by the value of leakage currents when applying high voltage to insulation. The transformerless electro-technical system (ETS) of a resonance type, in which resonant inductive-capacitive circuit (ICС) with a high Q -factor carried out a multiple increase in AC voltage, was used to generate such voltage. Analytical expressions were obtained for the steady-state voltage on such CES and transient currents in the ETS circuit its charging. Simulation modeling of transient processes in the circuits of such ETS during CES charging was performed using the LTSpice software package. It is shown that the dependences of the output voltage and current of the ETS on time, obtained by analytical expressions, practically coincide with the results of simulation simulations. The influence of the ratio of the load capacitance and the resonant circuit capacitance on the relative load charging time and, accordingly, on the ETS power was studied. It was found that in order to increase the power of high -voltage transformerless ETS of the specified resonance type, it is necessary to increase the ratio of the CES capacity to the ICС capacity of the resonant circuit of the ETS. This approach can be used when using ETS with resonant ICCs to create powerful electric discharge installations (EDIs) for the implementation of technologies for obtaining electro-spark micro- and nanopowders with unique operational properties. When creating powerful EDIs, it is suggested to use the value of the above-mentioned ratio at least 10. References 31, figures 5.
References
Friungel F. Pulse technology. Generation and application of capacitor discharges. Moskva: Energiia, 1965. 488 p. (Rus)
Livshits A.L., Otto M.Sh. Pulse electrical engineering. Moskva: Energoatomizdat, 1983. 352 p. (Rus)
Schwab A. Measurements at high voltage. Moskva: Energiia, 1973. 239 p. (Rus)
Bluhm H. Pulsed power systems: principles and applications. Berlin: Springer-Verlag, 2006. Pp. 288–305.
Pentegov I.V. Fundamentals of the theory of charging circuits of capacitive energy storage. Kyiv: Naukova dumka, 1982. 422 p. (Rus)
Dubovenko K.V. Modeling of charging circuits of capacitive energy storage devices with an increased frequency link. Elektrotekhnika ta elektromehkanika. 2006. No 3. Pp. 58–63. (Rus)
Suprunovska N.I., Shcherba A.A. Processes of energy redistribution between parallel connected capacitors. Tekhnichna Elektrodynamika. 2015. No 4. Pp. 3–11. (Rus)
Shcherba A.A., Suprunovska N.I. Electric energy loss at energy exchange between capacitors as function of their initial voltages and capacitances ratio. Tekhnichna Elektrodynamika. 2016. No 3. Pp. 9–11. DOI: https://doi.org/10.15407/techned2016.03.009.
Biletsky O.O., Suprunovska N.I., Shcherba A.A. Dependence of power characteristics of circuit at charge of su-percapacitors on their initial and final voltages. Tekhnichna Elektrodynamika. 2016. No 1. Pp. 3–10. DOI: https://doi.org/10.15407/techned2016.01.003. (Ukr)
Vovchenko A.I., Boguslavsky L.Z., Miroshnichenko L.N. Trends in the development of high-power high-voltage pulse current generators at the Institute of IPPT of NAS of Ukraine. Tekhnichna Elektrodynamika. 2010. No 5. Pp. 69–74. (Rus)
Ochin P., Gilchuk A.V., Monastyrsky G.E., Koval Y.N., Shcherba A.A., Zaharchenko S.N. Martensitic Trans-formation in Spark Plasma Sintered Compacts of Ni-Mn-Ga Powders Prepared by Spark Erosion Method in Cryogenic Liquids. Materials Science Forum. 2013. Vol. 738–739. Pp. 451–455. DOI: https://doi.org/10.4028/www.scientific.net/MSF.738-739.451.
Milyakh A.N., Kubyshin B.E., Volkov I.V. Inductive-capacitive converters of voltage sources into current sources. Kyiv: Naukova Dumka, 1964. 304 p. (Rus)
Volkov I.V., Gubarevich V.N., Isakov V.N., Kaban V.P. Principles of construction and optimization of schemes of inductive-capacitive converters. Kyiv: Naukova dumka, 1981. 176 p. (Rus)
Spirin V.M., Hubarevich V.M., Marunia Y.V., Salko S.V., Grebenyuk V.G. Optimization of inductive-capacital converter with bridge one-phase rectifier, capacitary filter and parallel active load. Tekhnichna Elektrodynamika. 2019. No 6. Pp. 25–29. DOI: https://doi.org/10.15407/techned2019.06.025. (Ukr)
Zakrevsky S.I. Development and research of autonomous sources of stabilized current based on inductive-capacitive converters. diss. ... Candidate of Technical Sciences. Institute of Electrodynamics of the Academy of Sci-ences of the Ukrainian SSR. Kiev. 1971. 244 p. (Rus)
Kazanivsky M. Lazer power supply based on multiphase resonance converters. Proc. International Conference on Modern Problems of Radio Engineering, Telecommunications and Computer Science (TCSET). Lviv-Slavske, Ukraine, 23–27 February 2010. Pp. 115–115.
Montes O.A., Son S., Kim S., Seok H., Lee J.S., Kim M. Forward-flyback resonant converter for high-efficient medium-power photovoltaic applications. Proc. Conference of IEEE on Applied Power Electronics Conference and Exposition (APEC), Tampa, FL, USA, 26–30 March 2017. Pp. 1223–1228. DOI: https://doi.org/10.1109/APEC.2017.7930851.
Densley J. Ageing mechanisms and diagnostics for power cables – An overview. IEEE Electrical Insulation Magazine. 2001. Vol. 17. No 1. Pp. 14–22. DOI: https://doi.org/10.1109/57.901613.
Hartlein R. Diagnostic testing of underground cable systems (cable diagnostic focused initiative). NEETRAC, Atlanta, GA, USA, Tech. Rep. DOE DE-FC02-04CH11237, NEETRAC 04-211/04-212/09-166, 2010.
Titko A.I., Vaskovsky Yu.N. Scientific foundations, methods and diagnostic tools for asynchronous motors. Kiev: Institute of Electrodynamics of the National Academy of Sciences of Ukraine, 2015. 300 p. (Rus)
Danikas M.G., Sarathi R. Electrical machine insulation: Traditional insulating material, nanocomposite polymers and the question of electrical trees. Funktechnikplus J. 2014. Vol. 1. Issue 5. Pр. 7–32.
Shcherba A.A., Vinnychenko D.V., Suprunovska N.I. Scientific concept of the development of high-voltage electrical systems of the resonant type with fast-acting control and parametric stabilization of load modes. Tekhnichna Elektrodynamika. 2024. No 2. Pp. 30–41. DOI: https://doi.org/10.15407/techned2024.02.030. (Ukr)
Eigner A., Rethmeier K. An overview on the current status of partial discharge measurements on AC high volt-age cable accessories. IEEE Electrical Insulation Magazine. 2016. Vol. 32. No 2. Pp. 48–55. DOI: https://doi.org/10.1109/MEI.2016.7414231.
Shcherba M., Shcherba A., Peretyatko Y. Mathematical Modeling of Electric Current Distribution in Water Trees Branches in XLPE Power Cables Insulation. Proc. 2020 IEEE 7th International Conference on Energy Smart Sys-tems (ESS 2020), Kyiv, Ukraine, 12–14 May 2020. Pp. 353–356. DOI: https://doi.org/10.1109/ESS50319.2020.9160293.
Shcherba A., Shcherba M., Peretyatko Y. Electric Field Disturbance Near Water Trees In XLPE Insulation of Power Cables and Self-carrying Insulated Wires at Non-Sinusoidal Voltages and Currents. Proc. Conference IEEE 3rd KhPI Week on Advanced Technology (KhPI Week 2022), Kharkiv, Ukraine, 03–07 October 2022. Pp. 1–4. DOI: https://doi.org/10.1109/KhPIWeek57572.2022.9916385.
Shahsavarian T., Shahrtash S.M. Modelling of aged cavities for partial discharge in power cable insulation. IET Sciences, Measurement and Technology. 2015. Vol. 9. No 6. Pp. 661–670. DOI: https://doi.org/10.1049/iet-smt.2014.0222.
Shcherba A.A., Shcherba M.A., Peretyatko Yu.V. Electro-physical processes of degradation of cross-linked polyethylene insulation of power cables and self-carrying insulated wires under non-sinusoidal voltages and currents. Tekhnichna Elektrodynamika. 2023. No 1. Pp. 3–6. DOI: https://doi.org/10.15407/techned2023.01.003. (Ukr)
Shcherba A.A., Podoltsev A.D., Kucheryavaya I.N., Zolotarev V.M., Belyanin R.V. Modeling and control of long-term electromagnetic and thermal processes in induction channel furnace for copper rod production. Tekhnichna Elektrodynamika. 2017. No 4. Pp. 55–64. DOI: https://doi.org/10.15407/techned2017.04.055. (Rus)
Vinnychenko D., Nazarova N., Vinnychenko I. Transformerless high-voltage resonant charging systems for ca-pacitive energy storage devices for electro-discharge technologies. Proc. of IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO), Lviv, Ukraine, 10–14 October 2022. Pp. 727–731. DOI: https://doi.org/10.1109/ELNANO54667.2022.9927052.
Vinnychenko D.V., Nazarova N.S., Vinnychenko I.L. Research of characteristics of high voltage transformerless resonant charger of capacitary storage device Tekhnichna Elektrodynamika. 2023. No 2. Pp. 21–27. DOI: https://doi.org/10.15407/techned2023.02.021. (Ukr)
Zeveke G.V., Ionkin P.A., Netushil A.V., Strakhov S.V. Fundamentals of Circuit Theory. Moskva: Energiia, 1975. 752 p. (Rus)

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright (c) 2024 Array