The efficiency in interleaved structures based on VSI topologies

In this work the VSI structure is analyzed in Synchronous Active Front End configuration (SAFE). An analysis on power losses and thermal behaviors of the SAFE compared with its base version (AFE) is given. In these structures, due to the parallelization in current, the number of AC link reactors grows up with the number of interleaved converters. For this reason, at the end, an investigation on the energy managed by AC link reactors is carried out. The whole study has been conducted at parity of Power Quality impact at the PCC. The power converter is employed in the renewable energy scenario. The SAFE employment is largely diffused in this kind of application due to its capability to manage the tradeoff between the flexibility of the energy and the Power Quality impact.

[1]  S. R. Bull,et al.  Renewable energy today and tomorrow , 2001, Proc. IEEE.

[2]  Colonel William T. McLyman,et al.  Transformer and inductor design handbook , 1978 .

[3]  P. Ladoux,et al.  Comparison of high voltage modular AC/DC converters , 2012, International Symposium on Power Electronics Power Electronics, Electrical Drives, Automation and Motion.

[4]  P. Ladoux,et al.  Considerations on boost inductor design in back-to-back converters for renewable energy , 2011, 2011 International Conference on Clean Electrical Power (ICCEP).

[5]  F. Blaabjerg,et al.  Power electronics as efficient interface in dispersed power generation systems , 2004, IEEE Transactions on Power Electronics.

[6]  P. Marino,et al.  Improved and extended DG capability in voltage regulation by reactive and active power , 2007, 2007 International Conference on Power Engineering, Energy and Electrical Drives.

[7]  W.E. Reid,et al.  Power quality issues-standards and guidelines , 1994, Proceedings of IEEE Pulp and Paper Industry Conference.

[8]  M Fioretto,et al.  Power losses analysis in AC/DC conversion based on active front end systems , 2010, SPEEDAM 2010.

[9]  Steffen Bernet,et al.  Design of $LCL$ Filters of Active-Front-End Two-Level Voltage-Source Converters , 2009, IEEE Transactions on Industrial Electronics.

[10]  A. Testa,et al.  Design criteria for AC link reactors in active front end converters for renewable energy applications in smart grids , 2012, 2012 IEEE International Energy Conference and Exhibition (ENERGYCON).

[11]  J. Marvin,et al.  Semiconductor power losses in AC inverters , 1995, IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting.