Increasing the efficiency of ship electric power systems using pulse electric energy converters
Article Sidebar
Main Article Content
Abstract
A comprehensive study of electrical processes in modular-structure converters with step-down power channels implementing an autotransformer inductor configuration under boundary (critical) operating conditions has been carried out. The specific features of current and voltage formation in the conversion modules are examined, and key patterns of their dynamics at the transition between continuous and discontinuous current modes are identified. A comparative analysis of single-phase and multiphase power conversion schemes has been performed. Special attention is given to the influence of phase-shifting, module configuration, transformer ratio of the inductor, and interaction between power channels on the overall energy performance of the system. Variations in output power, ripple amplitude, and current and voltage waveforms are investigated, as well as the role of primary and secondary inductances in ensuring the stability and efficiency of converter operation. Based on mathematical modeling, optimal parameter ranges have been established that improve energy efficiency, reduce output ripple, and enhance converter performance under boundary load conditions. The obtained results may be applied to the design of high-performance modular power converters and next-generation multiphase power supply systems.
Article Details
References
2. Kharchenko R.Y., Kochetkov A.V., Mikhaylenko V.S. (2022). Analysis of methods for automated research of DC voltage converters of modular structure. Radio Electronics, Computer Science, Control, vol. 3, pp. 7-21.
3. Kharchenko R.Y., Zavadskiy V.A., Kochetkov A.V. (2023). Methods for automated research of DC voltage converters. In Proceedings of the International Scientific and Technical Conference «Ship Electrical Engineering, Electronics and Automation» Original conference held (November 22–23, 2022). Odesa: NU «OMA». Р. 85-89.
4. Kochetkov O.V., Zarytska O.I., Gaur T.O. (2023). Doslidzhennia vplyvu velychyny vkhidnoi napruhy na pokaznyky yakosti elektrychnoi enerhii peretvoriuvachiv postiinoi napruhy modulnoi struktury [Research of the influence of input voltage magnitude on the power quality indicators of modular-structure DC voltage converters] In Proceedings of the XIII International Scientific and Technical Conference «Ship Electrical Engineering, Electronics and Automation». Original conference held (November 22–23, 2022). Odesa: NU «OMA». Р. 104-107.
5. Kochetkov O.V., Mashin V.M., Kryvoruchko D.Y., Gaur T.O., Dranchuk S.M., Kharchenko R.Y. (2025). Alhorytmy avtomatyzovanoho doslidzhennia peretvoriuvachiv postiinoi napruhy modulnoi struktury [Algorithms for automated research of modular-structure DC voltage converters]. Visnyk Odeskoho natsionalnoho morskoho universytetu, vol. 3(77). Р. 117-128. DOI: https://doi.org/10.47049/2226-1893-2025-3-117-128
6. Kharchenko R.Y., Kochetkov O.V., Gaur T.O. (2023). Elektrychni protsesy pidvyshchuiuchykh peretvoriuvachiv postiinoi napruhy modulnoi struktury v hranychnomu rezhymi funktsionuvannia. [Electrical processes of modular- structure step-up DC voltage converters under boundary operating conditions] In Proceedings of the XIII International Scientific and Technical Conference «Ship Electrical Engineering, Electronics and Automation» Original conference held (November 22-23, 2022). Odesa: NU «OMA». Р. 108-110.