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A DC SSCB based on Natural Commutation in High Power Thyristors
Conference proceeding

A DC SSCB based on Natural Commutation in High Power Thyristors

Reza Kheirollahi, Shuyan Zhao, Zilong Zheng, Hua Zhang and Fei Lu
2023 IEEE Transportation Electrification Conference & Expo (ITEC)
21 Jun 2023
DOI: https://doi.org/10.1109/ITEC55900.2023.10187009
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

Circuit Breakers DCCBs Direct Current Circuit Breakers Medium voltage Potential Markets Power system reliability Prototypes Scalability Standards Thyristors Topology Voltage
This paper presents a fast solid-state circuit breaker (SSCB) for medium voltage dc (MVDC) applications. It makes use full benefits of high-power thyristors in main branch. Applying full-controlled switches in the main and auxiliary branches obtains a complete commutation in the thyristors, achieves a fast fault current interruption, enhances reliability, and provides scalability. The SSCB needs no charge/discharge circuits, resulting in an easy design procedure and a fast re-closing and re-breaking process. The presented topology is validated by experiments of a scale-down 750 V / 585 A prototype, where it achieves the reaction time interval of 800 µs. Meanwhile, peak voltage on main, auxiliary, and load commutation switches is 3.03, 3.026, and 1.17 kV, respectively.

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UN Sustainable Development Goals (SDGs)

This publication has contributed to the advancement of the following goals:

#7 Affordable and Clean Energy

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Collaboration types
Domestic collaboration
Web of Science research areas
Engineering, Electrical & Electronic
Transportation Science & Technology
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