Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Characteristic analysis of parallel-rotor hybrid generator based on exciter types

  • Woo, Hyeon Myeong (Department of Mechatronics Engineering, Kyungsung University) ;
  • Lee, Dong-Hee (Department of Mechatronics Engineering, Kyungsung University)
  • Received : 2019.11.12
  • Accepted : 2020.02.21
  • Published : 2020.05.20
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Abstract

In this paper, a characteristic analysis and a performance comparison of a permanent magnet (PM) exciter and a conventional winding exciter for a parallel-rotor-type hybrid generator is presented. The proposed rotor of the hybrid generator comprises two separate structures, a PM and a field winding. The two rotors are attached in parallel to improve the efficiency and self-starting characteristics. Using this configuration, the PM rotor produces base flux to generate enough no-load voltage and the field winding rotor is used to regulate that output voltage. Because of the PM rotor flux, the automatic voltage regulator can self-start the generator by taking the voltage induced by the PM flux, regardless of the exciter. The self-start capability, dynamic response and efficiency of both exciters are compared and investigated. It can be confirmed through experiments that the PM exciter shows better efficiency and dynamic response with reduced mechanical complexity.

Keywords

Acknowledgement

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2018R1D1A1B07043989).

References

  1. David, A.K., Wen, F.: Market power in electricity supply. IEEE Trans. Energy Convers. 16(4), 352-360 (2001) https://doi.org/10.1109/60.969475
  2. Erlich, I., Shewarega, F., Feltes, C., Koch, F.W., Fortmann, J.: Offshore wind power generation technologies. Proc. IEEE 101(4), 891-905 (2013) https://doi.org/10.1109/JPROC.2012.2225591
  3. Barote, L., Marinescu, C.: PMSG wind turbine system for residential applications. SPEEDAM 2010, 772-777 (2010)
  4. Gomis-Bellmunt, O., Junyent-Ferre, A., Sumper, A., Bergas-Jane, J.: Permanent magnet synchronous generator offshore wind farms connected to a single power converter. In: IEEE PES General Meeting. Providence, RI, USA, pp. 1-6 (2010)
  5. Abedini, A., Nasiri, A.: PMSG wind turbine performance analysis during short circuit faults. In: 2007 IEEE Canada Electrical Power Conference. Montreal, Qc, Canada, 25-26 October 2007, pp. 160-165 (2007)
  6. Cho, C., Ahn, J., Lee, D.: Self-excitation system using high-efficiency low-power PM generator. In: 2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC). Budapest, Hungary, 2018, pp. 428-433(2018)
  7. Zhu, S., Liu, C., Wang, K., Hu, Y., Ning, Y.: Theoretical and experimental analyses of a hybrid excitation synchronous generator with integrated brushless excitation. IET Electr. Power Appl. 10(4), 258-267 (2016) https://doi.org/10.1049/iet-epa.2015.0262
  8. Kamiev, K., Nerg, J., Pyrhonen, J., Zaboin, V., Hrabovcova, V., Rafajdus, P.: Hybrid excitation synchronous generators for island operation. IET Electr. Power Appl. 6(1), 1-11 (2012) https://doi.org/10.1049/iet-epa.2010.0226
  9. Shakal, A., Liao, Y., Lipo, T.A.: A permanent magnet AC machine structure with true field weakening capability. In: ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings. Budapest, Hungary, pp. 19-24 (1993)
  10. Gieras, J.F., Rozman, G.I.: Permanent magnet electric generator with variable magnet flux excitation. EP Patent, 2,107,664 (2014)
  11. Glennon, T.F.: Voltage regulated permanent magnet generator system. US Patent, 4,663,581 (1987)
  12. Naoe, N., Fukami, T.: Trial production of a hybrid excitation type synchronous machine. In: IEMDC 2001. IEEE International Electric Machines and Drives Conference (Cat. No.01EX485). Cambridge, MA, USA, pp. 545-547 (2001)
  13. Shushu, Z., Chuang, L., Yinhang, N., Jie, T.: A two-stage brushless excitation method for hybrid excitation synchronous generator. IEEE Trans. Magn. 51(6), 1-11 (2015)
  14. Barakat, A., Tnani, S., Champenois, G., Mouni, E.: Output voltage control of synchronous generator using diode and thyristor excitation structures combined with multivariable H∞ controllers. IET Power Appl. 6(4), 203-213 (2012) https://doi.org/10.1049/iet-epa.2011.0013
  15. Noland, J.K., Evestedt, F., Perez-Loya, J.J., Abrahamsson, J., Lundin, U.: Comparison of thyristor rectifier configurations for a six-phase rotating brushless outer pole PM exciter. IEEE Trans. Ind. Electron. 65(2), 968-976 (2018) https://doi.org/10.1109/tie.2017.2726963
  16. Noland, J.K., Evestedt, F., Perez-Loya, J.J., Abrahamsson, J., Lundin, U.: Testing of active rectification topologies on a six-phase rotating brushless outer pole PM exciter. IEEE Trans. Energy Convers. 33(1), 59-67 (2018) https://doi.org/10.1109/tec.2017.2746559