Design of Three Phase Solid State Transformer Deployed within Multi-Stage Power Switching Converters

Umair Tahir; Ghulam Abbas; Dan Ovidiu Glavan; Valentina E. Balas; Umar Farooq; Marius M. Balas; Ali Raza; Muhammad Usman Asad; Jason Gu

doi:10.20944/preprints201907.0295.v1

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preprints.org > engineering > control and systems engineering > doi: 10.20944/preprints201907.0295.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Design of Three Phase Solid State Transformer Deployed within Multi-Stage Power Switching Converters

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Version 1 : Received: 25 July 2019 / Approved: 26 July 2019 / Online: 26 July 2019 (01:02:25 CEST)

A peer-reviewed article of this Preprint also exists.

Tahir, U.; Abbas, G.; Glavan, D.O.; Balas, V.E.; Farooq, U.; Balas, M.M.; Raza, A.; Asad, M.U.; Gu, J. Design of Three Phase Solid State Transformer Deployed within Multi-Stage Power Switching Converters. Appl. Sci. 2019, 9, 3545. Tahir, U.; Abbas, G.; Glavan, D.O.; Balas, V.E.; Farooq, U.; Balas, M.M.; Raza, A.; Asad, M.U.; Gu, J. Design of Three Phase Solid State Transformer Deployed within Multi-Stage Power Switching Converters. Appl. Sci. 2019, 9, 3545.

Abstract

This paper presents a symmetrical topology for the design of solid-state transformer, made up of power switching converters, to replace conventional bulky transformers. The proposed circuitry not only reduces the overall size but also provides power flow control with the ability to be interfaced with renewable energy resources (RESs) to fulfill the future grid requirements at consumer end. Solid state transformer provides bidirectional power flow with variable voltage and frequency operation and has the ability to maintain unity power factor, and current total harmonic distortion (THD) for any type of load within defined limits of IEEE standard. Solid State Transformer offers much smaller size as compared to that of the conventional iron core transformer. MATLAB/Simulink platform is adopted to test the validity of the proposed circuit for different scenarios by providing the simulation results evaluated at 25 kHz switching frequency.

Keywords

decoupled controller; ferrite material; proportional integral (PI); solid state transformer (SST); space vector pulse width modulation (SVPWM); voltage source converter (VSC); voltage source inverter (VSI)

Subject

Engineering, Control and Systems Engineering

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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