Abstract
The purpose of the research work is to identify new possibilities for the structural-algorithmic synthesis of active power electronic devices, PED(A) of the most common classes, AC/DC (in both transformer and transformerless designs), in the following currently relevant areas: 1) increasing the converted power when using actually available fully controllable switches with insufficient unit power (without parallel connection); 2) performing the function of output voltage regulation; 3) improving their electromagnetic and power energy compatibility by improving the input power factor (IPF) of non-linear loads (NL); 4) creating informational and methodological foundations for the NL comparative assessment and for their systematic design. Rational application areas for such PED(A) are, first of all, traction substations with a capacity from units to tens of MW. The pressing relevance of their deep modernization is especially obvious in cases where their lifetime exceeds 50 years and they use a single-channel passive version of PED(P) in the form of a traditional 3-phase bridge rectifier, whose perfection degree is characterized by a reduced value of its IPF. It is shown that the considered structural-algorithmic PED(P) organization of this class provides an input value of cosφ1(1)=1, both during their output voltage regulation and when the load current changes (without the use of special negative feedback for this purpose). A quantitative relationship has been established between unauthorized losses in the power transmission line caused by a reduced value of the IPF indicator. New solutions and recommendations for their application are proposed. Mathematical and computer modeling were used as research tools. The results are presented in the form of oscillograms, tables and graphs.
Keywords
rectifier devices (RD), transformers, structural-algorithmic synthesis, multi-channel conversion, regulation, input power factor, electromagnetic compatibility, power transmission line (PTL), unauthorized losses in PTL, mathematical and computer modeling
1. Sajeesh D., George S. Power factor improvement in rectifier circuit – A simulation study. 2014 Annual International Conference on Emerging Research Areas: Magnetics, Machines and Drives (AICERA/iCMMD). IEEE, 2014. doi: 10.1109/AICERA.2014.6908237.
2. Wei G., Hongchao J., Xingwu Y. A three-phase PWM rectifier with reactive power compensation function. 2014 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC). IEEE, 2014. doi: 10.1109/APPEEC.2014.7066073.
3. Wang C., Yang B., Shinohara N. Design of rectifiers for high power wireless power transmission system. 2019 IEEE Wireless Power Transfer Conference (WPTC). IEEE, 2019. Pp. 417-420. doi: 10.1109/WPTC45513.2019.9055624
4. Ivanov A.V., Klimov V.I., Levin. V.I. Reguliruemyi preobrazovatel postoyannogo toka v peremennyi s uluchshchennoy krivoy vykhodnogo napryazheniya. [Controlled DC to AC converter with improved output voltage waveform]. USSR Author’s Certificate, no. 341144, 1973.
5. Mytsyk G.S., Mikheev V.V., Fridman P.M. Multi-channel construction of converters with intermediate high-frequency conversion. Elektrichestvo [Elektrichestvo], 1992, no. 4, pp. 22–31. (In Russian)
6. Mytsyk G.S. On quality indicators and design features of modern transformer rectifier devices with a multi channel converting path. Promyshlennaya Energetika [Industrial Power Engineering], 2021, no. 3, pp. 2–12. (In Russian)
7. Hein Z.H. Razrabotka i issledovanie invertorov napryazheniya mnogokanalnogo tipa dlya solnechnykh elektrostantsiy. Kand. Diss. [Development and research of multi channel voltage inverters for solar power plants. Kand. Diss.]. Moscow, 2022. 160 p. (In Russian)
8. Konyakhin S.F. Issledovanie i razrabotka bortovykh transformatorno-vypryamitelnykh ustroistv s mnogokanalhym preobrazuyushchim traktom. Kand. Diss. [Research and development of on-board transformer-rectifier devices with a multi-channel converting path. Ph.D. Diss.]. Moscow, 2009.
9. Hlaing M.O. Sozdanie informatsionno metodicheskogo obespecheniya dlya sistemnogo proektirovaniya preobrazuyushchikh elektronnykh, transformatorno elektronnykh i generiruyushchikh mashinno elektronnykh system elektrotekhnicheskikh kompleksov avtonomnykh obyektov. Doct. Diss. [Creation of information and methodological support for the systemic design of converting electronic, transformer-electronic, and generating machine-electronic systems of electrical complexes for autonomous objects. Doct. Diss.]. Moscow, 2016. 467 p. (In Russian)
10. Tin A.Z. Rezultaty issledovaniya vozmozhnostey sovershenstvovaniya elektronnykh i mashinno-elektronnykh preobrazovateley povyshennoy moshchnosti na osnove ispolzovaniya printsipa mnogokanalnogo preobrazovaniya energeticheskogo potoka. Kand. Diss. [Results of a study on the possibilities for improving high-power electronic and machine-electronic converters based on the use of the principle of multi-channel conversion of energy flow. Kand. Diss.]. Moscow, 2020. 200 p. (In Russian)
11. Soe N.N. Hein. Razrabotka elektronnykh preobrazovateley na osnove printsipa mnogokanalnogo preobrazovaniya dlya relsovykh transportnykh sredstv. Kand. Diss. [Development of electronic converters based on the multi-channel conversion principle for rail vehicles. Kand. Diss.]. Moscow, 2023. 170 p. (In Russian)
12. Bronstein I.N., Semendyaev K.A. Spravochnik po matematike dlya inzhenerov i uchashchikhsya VTUZov [Handbook of Mathematics for Engineers and Students of Higher Technical Educational Institutions]. Moscow, Nauka Publ., 1964. 608 p. (In Russian)
13. Solanki J., Frohleke N., Bocker J., Duppe G., Averberg A., Wallmeier P. Voltage-sequence-control-based high-current rectifier system. IEEE Transactions on Industry Applications, 2015, vol. 51, no. 5, pp. 3995-4005. doi: 10.1109/TIA.2015.2422772.
14. Alves R.L., Barbi I. A new hybrid high power factor three-phase unidirectional rectifier. 2006 IEEE International Symposium on Industrial Electronics (ISIE). IEEE, 2006. Pp. 1046-1051. doi: 10.1109/ISIE.2006.295781
15. Ibrahim A.U., Zhong W., Xu M.D. A 50-kW three-channel wireless power transfer system with low stray magnetic field. IEEE Transactions on Power Electronics. 2021, vol. 36, no. 9, pp. 9941-9954. doi: 10.1109/TPEL.2021.3064373.
16. Babaei M., Monfared M., Sharifi S., Rezazadeh H. Z-source flyback PFC rectifier for energy storage systems. 2020 11th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC). IEEE, 2020. doi: 10.1109/PEDSTC49159.2020.9088376.
17. Gomes de Freitas L.C., Simoes M.G., Canesin C.A., de Freitas L.C. A novel programmable PFC based hybrid rectifier for ultra clean power application. 2004 IEEE 35th Annual Power Electronics Specialists Conference. IEEE, 2004, vol. 3, pp. 2172-2177. doi: 10.1109/PESC.2004.1355456.
18. Rahman N.A., Kamarudin K., Baharom R. Boost active power factor correction converter using various current controllers in double loop control algorithm. 2020 IEEE International Conference on Power and Energy (PECon). IEEE, 2020. Pp. 24-28. doi: 10.1109/PECon48942.2020.9314613.
19. Mytsyk G.S., Myo Min Thant, Tyuryakhin E.O. Controlled three-phase rectifier devices with input power factor corrector. Elektroenergiya. Peredacha i raspredelenie [Electric power. Transmission and distribution], 2024, no. 5, pp. 116–124. (In Russian)
20. Mytsyk G.S., Myo Min Thant, Vorontsov K.A. Reguliruemoe transformatorno vypryamitel’noe ustroistvo [Controlled transformer-rectifier device]. Patent RF, no. 2802419, 2023.
Mytsyk G.S., Myo M.T. Improving the Energy Efficiency of Local Three-phase AC Voltage Power Lines to Non-linear Loads. Elektrotekhnicheskie sistemy i kompleksy [Electrotechnical Systems and Complexes], 2026, no. 3(72), pp. 4-14. (In Russian). https://doi.org/10.18503/2311-8318-2026-3(72)-4-14