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DC Bus Voltage Regulation With Six-Step Operation in Maritime DC Power System

식스 스텝 운전을 이용한 선박용 DC 전력 시스템의 직류단 전압 제어

  • Yun, Jonghun (Dept. of Electrical and Computer Engineering, Seoul National University) ;
  • Son, Young-Kwang (Korea Electrotechnology Research Institute) ;
  • Sul, Seung-Ki (Dept. of Electrical and Computer Engineering, Seoul National University)
  • Received : 2021.02.26
  • Accepted : 2021.04.05
  • Published : 2021.08.20

Abstract

Active AC/DC converters with PWM operation are utilized to regulate rectified DC bus voltage of a permanent magnet synchronous generator in the maritime DC power system. A DC bus voltage regulation strategy that exploits the six-step operation is proposed in this study. Compared with that of the PWM operation, switching loss of the converter can be significantly reduced under the six-step operation. Moreover, conduction loss can also be reduced due to the high modulation index and reduced flux-weakening current of the six-step operation. A controller is used for the proposed DC bus voltage regulation strategy to verify its validity with the simulation and experimental setup. The simulation and the experimental test results showed that the converter loss reduces to a maximum of 70% and 19%, respectively.

Keywords

Acknowledgement

본 논문은 2021년도 BK21 FOUR 정보기술 미래 인재 교육 연구단에 의하여 지원되었음.

References

  1. A. P. Roskilly, R. Palacin, and J. Yan, "Novel technologies and strategies for clean transport systems," Applied Energy, Vol. 157, pp. 563-566, 2015. https://doi.org/10.1016/j.apenergy.2015.09.051
  2. DNV GL, "Maritime forecast to 2050," Accessed on: Nov. 15, 2019. [Online]. Available: https://www.dnvgl.com/publications/.
  3. R. D. Geertsma, R. R. Negenborn, K. Visser, and J. J. Hopman, "Design and control of hybrid power and propulsion systems for smart ships: A review of developments," Applied Energy, Vol. 194, pp. 30-54, 2017. https://doi.org/10.1016/j.apenergy.2017.02.060
  4. R. Barcellos, "The hybrid propulsion system as an alternative for offshore vessels servicing and supporting remote oil field operations," OTC Brasil, 2013.
  5. G. F. Reed, B. M. Grainger, A. R. Sparacino, and M. Zhi-Hong, "Ship to grid: Medium-voltage DC concepts in theory and practice," IEEE Power and Energy Magazine, Vol. 10, No. 6, pp. 70-79, Nov. 2012. https://doi.org/10.1109/MPE.2012.2212613
  6. S. O. Settemsdal, E. Haugan, K. Aagesen, B. Zahedi, and S. A. Drilling, "New enhanced safety power plant solution for DP vessels operated in closed ring configuration," in Proceedings of Dynamic Positioning Conference Marine Technology Society, pp. 1-21, 2014.
  7. D. Dujic and U. Javaid, "MVDC power distribution networks and technologies for marine applications," in Proceedings of ECPE Workshop, Aachen, Germany, pp. 1-28, 2018.
  8. F. Gao, X. Zheng, S. Bozhko, C. Hill, and G. Asher, "Modal analysis of a PMSG-based DC electrical power system in the more electric aircraft using eigenvalues sensitivity," IEEE Transactions on Transportation Electrification, Vol. 1, No. 1, pp. 65-76, Jun. 2015. https://doi.org/10.1109/TTE.2015.2427312
  9. Y. K. Son, S. Y. Lee, and S. K. Sul, "DC power system for fishing boat," in Proceedings of International Conference on Power Electronic Drives and Energy Systems (PEDES), pp. 1-6, Dec. 2018.
  10. A. Accetta and M. Pucci, "Energy management system in DC micro-grids of smart ships: Main gen-set fuel consumption minimization and fault compensation," IEEE Transactions on Industry Applications, Vol. 55, No. 3, pp. 3097-3113, May/Jun. 2019. https://doi.org/10.1109/tia.2019.2896532
  11. Y. Son, S. Lee, S. Ko, Y. Kim, and S. Sul, "Maritime DC power system with generation topology consisting of combination of permanent magnet generator and diode rectifier," IEEE Transactions on Transportation Electrification, Vol. 6, No. 2, pp. 869-880, Jun. 2020. https://doi.org/10.1109/tte.2020.2992474
  12. M. Huang, K. Chen, T. Chen, Y. Liang, and G. Pan, "An innovative constant voltage control method of PMSM-Type ISG under wide engine speed range for scooter with idling stop," IEEE Access, Vol. 7, pp. 20723-20733, 2019. https://doi.org/10.1109/ACCESS.2019.2896136
  13. Y. K. Won, S. Kim, and S. Sul, "Six-step operation of PMSM with instantaneous current control," IEEE Transactions on Industry Applications, Vol. 50, No. 4, pp. 2614-2625, Jul./Aug. 2014. https://doi.org/10.1109/tia.2013.2296652
  14. K. Asano et al., "High performance motor drive technologies for hybrid vehicles," in Proceedings of Power Conversion Conference, Nagoya, Japan, pp. 1584-1589, 2007.
  15. B. K. Bose, "A high-performance inverter-fed drive system of an interior permanent magnet synchronous machine," IEEE Transactions on Industry Applications, Vol. 24, No. 6, pp. 987-1087, Nov./Dec. 1988. https://doi.org/10.1109/28.17470
  16. P. Ghimire, D. Park, M. K. Zadeh, J. Thorstensen, and E. Pedersen, "Shipboard electric power conversion: System architecture, applications, control, and challenges [Technology leaders]," IEEE Electrification Magazine, Vol. 7, No. 4, pp. 6-20, Dec. 2019. https://doi.org/10.1109/mele.2019.2943948
  17. DNV GL, "Rules for classification ships: Part 4 systems and components-Chapter 8 electrical installations," 2018.