A New Power Electronic Transformer Applied to Distribution System

Article Preview

Abstract:

This paper proposes a new power electronic transformer (PET) to be used for distribution system, which is composed of the three-stage power circuits. The input stage uses Modular Multilevel Converter (MMC) to reduce the voltage stress rating of components, meanwhile, the harmonic components in the current will be deduced significantly, to make DC capacitor voltage of MMC rectifier balance, a control method is proposed. The isolation stage use a middle-frequency transformer to realize voltage conversion and isolation of the low-voltage side from the high-voltage side. In the third-stage, a inverter outputs the desired voltage and power to the load. The simulation results are presented to show the validity of the proposed PET system.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

2879-2885

Citation:

Online since:

October 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] L. Chen, G. Baoming, B. Daqiang, M. Qingqing. An effective power electronic transformer applied to distribution system. 2011 International Conference on Electrical Machines and Systems (ICEMS), Beijing, China, 2011, pp.1-6.

Google Scholar

[2] M. R. Banaei, E. Salary. Power quality improvement based on novel power electronic transformer. 2011 2nd Power Electronics, Drive systems and Technologies Conference, Tehran 2011, pp.286-291.

DOI: 10.1109/pedstc.2011.5742434

Google Scholar

[3] Z. Chuanhong, M. Weiss, A. Mester, S. Lewdeni-Schmid. Power Electronic Transformer (PET) Converter Design of a 1. 2MW Demonstrator for Traction Applications. 2012 International Symposium on Power Electronics, Electrical Drives, Automation and Motion. 2012, pp.855-860.

DOI: 10.1109/speedam.2012.6264496

Google Scholar

[4] C. Li, X. Yunxiang, L. Xiang, W. Zhiping. The topology analysis and compared of high-frequency power electronic transformer. Power and Energy Engineering Conference (APPEEC), Asia-Pacific, Shanghai. 2012, pp.1-6.

Google Scholar

[5] S. Allebrod, R. Hamerski, R. Marquardt. New Transformerless, Scalable Modular Multilevel Converters for HVDC-Transmission. IEEE Power Electronics Specialists Conference, Rhodes, Greece. 2008, pp.174-179.

DOI: 10.1109/pesc.2008.4591920

Google Scholar

[6] M. Saeedifard, R. Iravani. Dynamic Performance of a Modular Multilevel Back-to-Back HVDC System. IEEE Transactions on Power Delivery, 2010, 25(4), pp.2903-2912.

DOI: 10.1109/tpwrd.2010.2050787

Google Scholar

[7] G. Minyuan, X. Zheng, L. Huijie. Analysis of DC voltage ripples in modular multilevel converters. Power System Technology (POWERCON), Hangzhou, China. 2010, pp.1-6.

DOI: 10.1109/powercon.2010.5666128

Google Scholar

[8] Akagi H. Classification, terminology, and application of the modular multilevel cascade converter (MMCC). Power Electronics Conference (IPEC), Sapporo, Japan. 2010, pp.508-515.

DOI: 10.1109/ipec.2010.5543243

Google Scholar