Design, Control, and Protection of a 13.2 kV, 1 MVA Solid State Transformer for Electric Vehicle Extreme Fast Charging Station

Bipu, Md Rashed Hassan; Montes, Oscar; Teng, Fei; Wang, Dakai; Awal, M. A.; Yu, Wensong; Husain, Iqbal; Lukic, Srdjan

doi:10.1109/tte.2024.3462920

Design, Control, and Protection of a 13.2 kV, 1 MVA Solid State Transformer for Electric Vehicle Extreme Fast Charging Station

Journal Article · Fri Jan 31 23:00:00 EST 2025 · IEEE Transactions on Transportation Electrification (Online)

DOI:https://doi.org/10.1109/tte.2024.3462920· OSTI ID:2561323

^[1]; Montes, Oscar ^[2]; ^[2]; ^[2]; ^[2]; ^[2]; ^[2]; ^[2]

North Carolina State University, Raleigh, NC (United States); NCSU
North Carolina State University, Raleigh, NC (United States)

In this article, a medium-voltage (MV) ac-dc solid state transformer (SST) for electric vehicle (EV) extreme fast charging (XFC) station is proposed. The SST adopts a cascaded H-bridge (CHB)-based structure where the active front end (AFE) power stages are connected in input-series followed by dual active bridge (DAB) converters connected in an output-parallel configuration providing galvanic isolation through a high-frequency transformer (HFT). The SST is rated for 1 MVA and connects directly to a three-phase 13.2 kV MV ac grid through ac switchgear and outputs 750-V dc. At the dc bus, several dc/dc converters are connected, each of which can charge an EV based on its battery capacity. A novel decentralized control architecture of the SST is adopted in this work which simplifies the MV dc link voltage and module-level power balancing. In addition, the local and central protection designs of the SST are presented which identify and respond to the internal fault of the system. Finally, the experimental validations of the SST hardware prototype are presented up to the rated voltage. Furthermore, this article details the design and implementation of the MV SST addressing the challenges of an isolated MV class power converter for connecting directly to the MV ac grid with unique controller architecture, distributed protection framework, and SST constructional features.

View Accepted Manuscript (DOE)

Research Organization:: North Carolina State University, Raleigh, NC (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: EE0008450

OSTI ID:: 2561323

Journal Information:: IEEE Transactions on Transportation Electrification (Online), Journal Name: IEEE Transactions on Transportation Electrification (Online) Journal Issue: 1 Vol. 11; ISSN 2332-7782

Publisher:: IEEECopyright Statement

Country of Publication:: United States

Language:: English

References (21)

State of the Art of Solid-State Transformers: Advanced Topologies, Implementation Issues, Recent Progress and Improvements Hannan, Mahammad A.; Ker, Pin Jern; Lipu, Molla S. Hossain IEEE Access, Vol. 8 https://doi.org/10.1109/ACCESS.2020.2967345	journal	January 2020
A Comprehensive Review of Power Converter Topologies and Control Methods for Electric Vehicle Fast Charging Applications Safayatullah, Md; Elrais, Mohamed Tamasas; Ghosh, Sumana IEEE Access, Vol. 10 https://doi.org/10.1109/ACCESS.2022.3166935	journal	January 2022
Medium Voltage Solid State Transformer for Extreme Fast Charging Applications Awal, M. A.; Montes, Oscar Andrés; Teng, Fei 2023 IEEE Applied Power Electronics Conference and Exposition (APEC) https://doi.org/10.1109/APEC43580.2023.10131285	conference	March 2023
Gate Driver Power Supply with Air-gapped Transformer for Medium Voltage Converters Teng, Fei; Feng, Hao; Lukic, Srdjan 2022 IEEE Applied Power Electronics Conference and Exposition (APEC) https://doi.org/10.1109/APEC43599.2022.9773678	conference	March 2022
Experimental Validation of Parallel Connection of RB-IGCTs for High Efficiency Solid State Circuit Breaker Zhang, Yuzhi; Raheja, Utkarsh; Rodrigues, Rostan 2020 IEEE Energy Conversion Congress and Exposition (ECCE) https://doi.org/10.1109/ECCE44975.2020.9235967	conference	October 2020
Coordination of Solid-State Circuit Breakers for DC Grids Under High-Fault-di/dt Conditions Chavan, Govind; Song, Xiaoqing; Chatterjee, Debanjan 2022 IEEE Energy Conversion Congress and Exposition (ECCE) https://doi.org/10.1109/ECCE50734.2022.9947849	conference	October 2022
Hierarchical Failure Mode Effect Analysis for the Protection Design of a MV AC-DC Solid State Transformer based EV Extreme Fast Charging Station Bipu, Md Rashed Hassan; Berdugo, Oscar Andres Montes; Lukic, Srdjan 2023 IEEE Energy Conversion Congress and Exposition (ECCE) https://doi.org/10.1109/ECCE53617.2023.10362709	conference	October 2023
A Purely Decentralized Control System Based on Cascaded Power Electronic Traction Transformer Niu, Jiaxuan; Yang, Xu; Li, Haonan 2024 IEEE 10th International Power Electronics and Motion Control Conference (IPEMC2024-ECCE Asia) https://doi.org/10.1109/IPEMC-ECCEAsia60879.2024.10567971	conference	May 2024
99% Efficient 10 kV SiC-Based 7 kV/400 V DC Transformer for Future Data Centers Rothmund, Daniel; Guillod, Thomas; Bortis, Dominik IEEE Journal of Emerging and Selected Topics in Power Electronics, Vol. 7, Issue 2 https://doi.org/10.1109/JESTPE.2018.2886139	journal	June 2019
Toward Extreme Fast Charging: Challenges and Opportunities in Directly Connecting to Medium-Voltage Line Srdic, Srdjan; Lukic, Srdjan IEEE Electrification Magazine, Vol. 7, Issue 1 https://doi.org/10.1109/MELE.2018.2889547	journal	March 2019
Medium-Voltage Solid-State Transformer: Technology for a Smarter and Resilient Grid Huang, Alex Q. IEEE Industrial Electronics Magazine, Vol. 10, Issue 3 https://doi.org/10.1109/MIE.2016.2589061	journal	September 2016
Improving the Stability of Cascaded DC/DC Converter Systems via Shaping the Input Impedance of the Load Converter With a Parallel or Series Virtual Impedance Zhang, Xin; Ruan, Xinbo; Zhong, Qing-Chang IEEE Transactions on Industrial Electronics, Vol. 62, Issue 12 https://doi.org/10.1109/TIE.2015.2459040	journal	December 2015
Utility Direct Interfaced Charger/Discharger Employing Unified Voltage Balance Control for Cascaded H-Bridge Units and Decentralized Control for CF-DAB Modules Sha, Deshang; Xu, Guo; Xu, Yaxiong IEEE Transactions on Industrial Electronics, Vol. 64, Issue 10 https://doi.org/10.1109/TIE.2017.2696511	journal	October 2017
Resilient Information Architecture Platform for the Smart Grid: A Novel Open-Source Platform for Microgrid Control Tu, Hao; Du, Yuhua; Yu, Hui IEEE Transactions on Industrial Electronics, Vol. 67, Issue 11 https://doi.org/10.1109/TIE.2019.2952803	journal	November 2020
Voltage and Power Balance Control for a Cascaded H-Bridge Converter-Based Solid-State Transformer Zhao, Tiefu; Wang, Gangyao; Bhattacharya, Subharshish IEEE Transactions on Power Electronics, Vol. 28, Issue 4 https://doi.org/10.1109/TPEL.2012.2216549	journal	April 2013
A Comprehensive Harmonic Analysis and Control Strategy for Improved Input Power Quality in a Cascaded Modular Solid State Transformer Gorla, Naga Brahmendra Yadav; Kolluri, Sandeep; Chai, Merlin IEEE Transactions on Power Electronics, Vol. 34, Issue 7 https://doi.org/10.1109/TPEL.2018.2873201	journal	July 2019
Extreme Fast Charging of Electric Vehicles: A Technology Overview Tu, Hao; Feng, Hao; Srdic, Srdjan IEEE Transactions on Transportation Electrification, Vol. 5, Issue 4 https://doi.org/10.1109/TTE.2019.2958709	journal	December 2019
800-V Electric Vehicle Powertrains: Review and Analysis of Benefits, Challenges, and Future Trends Aghabali, Iman; Bauman, Jennifer; Kollmeyer, Phillip J. IEEE Transactions on Transportation Electrification, Vol. 7, Issue 3 https://doi.org/10.1109/TTE.2020.3044938	journal	September 2021
Series Connection of SiC MOSFETs with Hybrid Active and Passive Clamping for Solid State Transformer Applications Wang, Dakai; Yu, Wensong 2019 IEEE 7th Workshop on Wide Bandgap Power Devices and Applications (WiPDA) https://doi.org/10.1109/WiPDA46397.2019.8998791	conference	October 2019
7.2kV/100kVA Solid State Transformer Based on Half Bridge LLC Resonant Converter and 15kV SiC AC Switch Xu, Wei; Rajendran, Sanjay; Guo, Zhicheng 2023 IEEE Applied Power Electronics Conference and Exposition (APEC) https://doi.org/10.1109/apec43580.2023.10131549	conference	March 2023
Design Of Minimum Volume Emc Input Filters For An Ultra Compact Three-phase Pwm Rectifier Heldwein, Marcelo L.; Kolar, Johann W. Eletrônica de Potência, Vol. 14, Issue 2 https://doi.org/10.18618/rep.2009.2.085096	journal	May 2009

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32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
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Design, Control, and Protection of a 13.2 kV, 1 MVA Solid State Transformer for Electric Vehicle Extreme Fast Charging Station

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