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High Power Capacitor Clamped Modular Resonant Dc/Dc Converter for Offshore Wind Energy Systems


S. Priyadharshini, K. Devaraj
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Recently, the interest in offshore wind farms is powerful resource, has been increased significantly because of the stronger and more stable winds at sea, which will lead to a increase power production. DC/DC power conversion solutions are becoming more popular for fulfilling the growing challenges in the offshore wind power industry. This paper presents several multilevel modular DC/DC conversion systems based on the capacitor-clamped module concept for high power offshore wind energy applications. Two types of the capacitor-clamped modules, the double-switch module and switchless module, are discussed. A soft-switching technique is adopted to achieve minimal switching losses and the maximum system efficiency. Theoretical analysis is carried out for the 2n+1 level cascaded configurations based on the capacitor-clamped modules. The inherent interleaving property of the proposed configurations effectively reduces the output voltage ripple without adding extra components. A cascaded hybrid topology is developed by the combination of double-switch and switchless modules. The experimental results of two 5-kW prototype capacitor-clamped converters are presented to validate the theoretical analysis and principles as well as attest the feasibility of the proposed topologies

S. Priyadharshini, K. Devaraj

Capacitor-clamped module, cascaded configuration, double-switch module, offshore wind energy, soft switching technique, and switchless module.

  1. Wang and M. S. N. Thi, "Stability analysis of four PMSG-based offshore wind farms fed to an SG-based power system through an LCC-HVDC Link," IEEE Trans. Ind. Electron., vol. 60, no. 6, pp. 2392–2400, Jun. 2013.
  2. P. Engel, N. soltau, H. Stagge, and R. W. De Doncker, "Dynamic and balanced control of three-phase high-power dual-active bridge DC/DC converters in DC-grid applications," IEEE Trans. Power Electron., vol. 28, no. 4, pp. 1880–1889, Dec. 2012.
  3. Garces and M. Molinas, "A study of efficiency in a reduced matrix converter for offshore wind farms," IEEE Trans. Ind. Electron., vol. 59, no. 1, pp. 184–193, Jan. 2012.
  4. Parastar and J. K. Seok, "High-power-density power conversion systems for HVDC-connected offshore wind farms," Journal of Power Electronics, vol. 13, no. 5, pp. 746–756, Sep. 2013.
  5. Denniston, A. Massoud, S. Ahmed, and P. Enjeti, "Multiple-module high-gain high-voltage DC–DC transformers for offshore wind energy systems," IEEE Trans. Ind. Electron., vol. 58, no. 5, pp. 1877–1886,May 2011.
  6. Robinson, D. Jovcic, and G. Joos, "Analysis and design of an offshore wind farm using a MV DC grid," IEEE Trans. Power Del., vol. 25, no. 4, pp. 2164–2173, Oct. 2010.
  7. Ortiz, J. Biela, and J. W. Kolar, "1 megawatt, 20 kHz, isolated, bidirectional 12 kV to 1.2 kV DC–DC converter for renewable energy applications," in Proc. IEEE ICPE, 2010, pp. 3212–3219.
  8. Parastar and J. K. Seok, "High-gain resonant switched-capacitor cell-based DC/DC converter for offshore wind energy systems," IEEE Trans. Power Electron., to be published.
  9. Veilleux, B. T. Ooi, P. W. Lehn, "Marx DC–DC converter for high power application," IET Power Electron., vol. 6, No. 9, pp. 1733–1741, Nov. 2013.
  10. Veilleux and B. T. Ooi, "Marx-dc-dc converter for connecting offshore wind farms to multiterminal HVDC," in Proc. IEEE PES, 2013, pp. 1–5.
  11. Chen, A. Q. Huang, C. Li, G. Wang, and W. Gu, "Analysis and comparison of medium voltage high power DC/DC converters for offshore wind energy systems," IEEE Trans. Power Electron., vol. 28, no. 4, pp. 2014–2023, Apr. 2013.
  12. Keiser, P. K. Steimer, and J. W. Kolar, "High power resonant switched-capacitor step-down converter," in Proc. IEEE PESC, 2008, pp. 2772–2777.
  13. K. Law, K. W. E. Cheng, and Y. P. B. Yeung, "Design and analysis of switched-capacitor-based step-up resonant converters," IEEE Trans.Circuits Syst. I, Reg. Papers, vol. 52, no. 5, pp. 943–948, May 2005.
  14. Cao and F. Z. Peng, "Zero-current-switching multilevel modular switched-capacitor DC–DC converter," IEEE Trans. Ind. Appl., vol. 46, no. 6, pp. 2536–2544, Nov./Dec. 2010.
  15. H. Khan and L. M. Tolbert, "A multilevel modular capacitor clamped DC-DC converter," IEEE Trans. Ind. Appl., vol. 43, no. 6, pp.1628-1638, Nov./Dec. 2007.
  16. W. Qian, J. G. C. Rivera, F. Z. Peng, and D. Cao, "A Multilevel DCDC converter with high voltage gain and reduced component rating and count," in Proc. IEEE APEC, 2011, pp. 1146–1152.

Publication Details

Published in : Volume 3 | Issue 1 | January-February - 2017
Date of Publication Print ISSN Online ISSN
2017-02-28 2395-1990 2394-4099
Page(s) Manuscript Number   Publisher
321-326 IJSRSET173173   Technoscience Academy

Cite This Article

S. Priyadharshini, K. Devaraj, "High Power Capacitor Clamped Modular Resonant Dc/Dc Converter for Offshore Wind Energy Systems ", International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 1, pp.321-326, January-February-2017.
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