A Fixed-Frequency Soft-Switched Interleaved 3-Phase AC-to-DC Converter

 

Y. Du and A.K.S. Bhat

 

2017/04/25

Abstrac

This paper proposes a three-phase interleaved highfrequency transformer isolated ac-dc converter that is suitable for small scale wind energy conversion systems employing permanent magnet synchronous generators. This configuration is realized by interleaving three identical single-phase singlestage ac-dc converters obtained by integrating a rectifier, boost converter and fixed-frequency dual-tank LCL resonant converters. Based on a design example used for illustration
purpose, a converter is designed and PSIM simulation results are presented for various operating conditions, such as balanced and unbalanced 3-phase operation; two-phase operation. It is shown
that the converter maintains soft switching fore wide variation in supply voltage with low THD with high power factor.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ, Nº. 15)
Pages: 417-422 Date of Publication: 2017/04/25
ISSN: 2172-038X Date of Current Version:
REF: 338-17 Issue Date: April 2017
DOI:10.24084/repqj15.338 Publisher: EA4EPQ

Authors and affiliations

Y. Du(2) and A.K.S. Bhat(1)
1. Department of Electrical and Computer Engineering. University of Victoria (Canada)
2. Is now with Rinte pipe Ecomaterial Co., Ltd., Chang Zhou, China

Key word

Interleaved, soft-switched, PMSG, power factor correction, ac-to-dc.

References

[1] XZERES Wind. gXzeres wind producth. Website, May 2011. http://www.xzeres.com/products/.
[2] Z. Chen and E. Spooner. gVoltage source inverters for high-power, variable-voltage DC power sources,h Generation, Transmission and Distribution, IEE Proceedings, IET, vol. 148, pp. 439.447, 2001.
[3] S.M. Dehghan, M. Mohamadian, and A.Y. Varjani. gA new variable-speed wind energy conversion system using permanentmagnet synchronous generator and Z-source inverter,h IEEE Trans. on, Energy Conversion, vol. 24, no. 3, pp. 714.724, 2009.
[4] D.M. Vilathgamuwa, W. Xiaoyu, and CJ Gajanayake. gZ-source converter based grid-interface for variable-speed permanent magnet wind turbine generators,h in PESC 2008. IEEE, pp. 4545.4550, 2008.
[5] F. Deng and Z. Chen. gPower control of permanent magnet generator based variable speed wind turbines,h in ICEMS 2009, IEEE, pp.1.6, 2009.
[6] M.E. Haque, M. Negnevitsky, and K.M. Muttaqi. gA novel control strategy for a variable-speed wind turbine with a permanent-magnet synchronous generator,h IEEE Trans. on, Industry Applications, vol. 46, no. 1, pp. 331.339, 2010.
[7] D.S. Oliveira, M.M. Reis, C. Silva, C. Barreto, F. Antunes, and B.L. Soares. gA three-phase high-frequency semi-controlled rectifier for PM WECS,h IEEE Trans. on, Power Electronics, vol. 25, no. 3, pp.677.685, 2010.
[8] M. Singh, V. Khadkikar, and A. Chandra. gGrid synchronization with harmonics and reactive power compensation capability of a permanent magnet synchronous generator-based variable speed wind energy conversion system,h IET, Power Electronics, vol. 4, no.1, pp. 122.130, 2011.
[9] D.C. Lee and D.S. Lim. gAC voltage and current sensorless control of three-phase PWM rectifiers,h IEEE Trans. on, Power Electronics, vol. 17, no. 6, pp. 883.890, 2002.
[10] T. Kominami and Y. Fujimoto. gA novel nine-switch inverter for independent control of two three-phase loads,h in IAS 2007, IEEE, pp. 2346.2350, 2007.
[11] H.J. Chua and P.N. Enjeti, A three-phase AC/AC high-frequency link matrix converter for VSCF applications,h in IEEE PESC, 2003, pp. 1971-1976.
[12] Y. Du and A.K.S. Bhat, gAnalysis and design of a high-frequency isolated dual-tank LCL resonant AC-DC converterh, IEEE Internatl. Power Electronics Conf., ECCE Asia,Hiroshima, Japan,
pp. 1721-1727, May 18-21, 2014.
[13] Y. Du, gA high-frequency isolated integrated resonant ac-dc converters for PMSG based wind energy conversion system, PhD. Dissertation, Dept. of ECE, University of Victoria, B.C., 2013.