scholarly journals Design and software implementation of solid state transformer

2018 ◽  
Vol 7 (3) ◽  
pp. 1776
Author(s):  
Dr Raaed Faleh Hassan
Keyword(s):  
Solid State ◽  
Power Transformer ◽  
Harmonic Distortion ◽  
Current Control ◽  
Software Implementation ◽  
Solid State Transformer ◽  
Output Stage ◽  
Dc Voltage ◽  
Three Phase ◽  
Step Down

The work presented in this paper concerned with the analysis, design and software implementation of the Solid State Transformer as an alternative to the conventional power transformer. The proposed transformer aims to perform the same task as the conventional one with additional facilities and advantages. Three stages are considered to configure the Solid State Transformer. The first stage which is known as input stage and implemented using Vienna rectifier which converts the AC voltage of the main supply to a DC voltage. The second stage (isolation stage) step down the DC voltage to a lower level DC voltage. This stage consists of a single – phase five-level diode clamped inverter, 1 KHz step – down transformer and fully controlled bridge rectifier. The output stage (third stage) is a three-phase three-level diode clamped inverter which converts the low level DC voltage to a three-phase, 50 Hz AC voltage. Model Predictive Current Control has been employed for driving transformer’s stages. The gating signal is produced directly when the given cost function is minimized, therefore there is no need of any modulator. Behavior of the proposed structure is achieved by simulation which shows high quality power conversion with low Total Harmonic Distortion.    

A Three-phase Active Front End Converter System Enabled by 10 kV SiC MOSFETs aimed at a Solid State Transformer Application

2021 ◽  
pp. 1-1
Author(s):  
Anup Anurag ◽  
Sayan Acharya ◽  
Nithin Kolli ◽  
Subhashish Bhattacharya ◽  
Todd Weatherford ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Transformer ◽  
Front End ◽  
Three Phase

scholarly journals Control of Three-Phase Solid-State Transformer With Phase-Separated Configuration for Minimized Energy Storage Capacitors

2020 ◽  
Vol 8 (3) ◽  
pp. 3014-3028 ◽  
Author(s):  
Takanori Isobe ◽  
Rene A. Barrera-Cardenas ◽  
Zijin He ◽  
Yang Zou ◽  
Katsushi Terazono ◽  
...  
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Solid State Transformer ◽  
Three Phase

scholarly journals Power Control of a Modular Three-Port Solid-State Transformer With Three-Phase Unbalance Regulation Capabilities

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 72859-72869
Author(s):  
Yuyang Li ◽  
Qiuye Sun ◽  
Dehao Qin ◽  
Ke Cheng ◽  
Zhibo Li
Keyword(s):  
Solid State ◽  
Power Control ◽  
Solid State Transformer ◽  
Three Phase

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

2019 ◽  
Vol 9 (17) ◽  
pp. 3545 ◽  
Author(s):  
Umair Tahir ◽  
Ghulam Abbas ◽  
Dan Glavan ◽  
Valentina Balas ◽  
Umar Farooq ◽  
...  
Keyword(s):  
Solid State ◽  
Power Flow ◽  
Harmonic Distortion ◽  
Iron Core ◽  
Switching Frequency ◽  
Switching Converters ◽  
Renewable Energy Resources ◽  
Solid State Transformer ◽  
Power Switching ◽  
Bidirectional Power Flow

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. The proposed solid-state transformer provides bidirectional power flow with variable voltage and frequency operation and has the ability to maintain unity power factor; and total harmonic distortion (THD) of current for any type of load within defined limits of Institute of Electrical and Electronics Engineers (IEEE) standard. Solid state transformer offers much smaller size compared to 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.

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