Title :
Power Electronic Transformer for Smart Grid application
Author :
Morawiec, Marcin ; Lewicki, Arkadiusz ; Krzeminski, Zbigniew
Author_Institution :
Gdansk Univ. of Technol., Gdansk, Poland
Abstract :
In this paper the control system of Power Electronic Transformer (PET) for the Smart Grid application is proposed. The structure of PET is based on two Cascaded H-bridge (CHB) converters. The electrical energy is transferred between converters using Dual-Active-Bridges (DAB) and high-frequency transformers. This type of coupling has been used to connect the DC-links of all H-bridges. The proposed control system for PET makes it possible for DC-link voltage stabilization and allows to reduce the total harmonic distortion (THD) of converter currents and voltages. The simulation and experimental researches of 600 kVA / 3.3kV PET are presented in the paper.
Keywords :
bridge circuits; cascade networks; harmonic distortion; high-frequency transformers; power convertors; power transformers; smart power grids; CHB converter; DAB; DC-link voltage stabilization; PET; THD reduction; apparent power 600 kVA; cascaded H-bridge converter; dual active bridge; high-frequency transformer; power electronic transformer control system; smart grid application; total harmonic distortion reduction; voltage 3.3 kV; Bridge circuits; Capacitors; Computational modeling; Control systems; Positron emission tomography; Rectifiers; Voltage control; CHB converter; cascaded H-bridge; control system; power electronic transformer;
Conference_Titel :
Smart Grid and Renewable Energy (SGRE), 2015 First Workshop on
Conference_Location :
Doha
DOI :
10.1109/SGRE.2015.7208730
