Solid-State Circuit Breaker Based on Cascaded Normally-On SiC JFETs for Medium-Voltage DC Distribution Networks

Dong He; Haohui Zhou; Zheng Lan; Wei Wang; Student Member; Jinhui Zeng; Member; Xueping Y; Z. John Shen; Fellow; IEEE

doi:10.23919/PCMP.2023.000143

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Solid-State Circuit Breaker Based on Cascaded Normally-On SiC JFETs for Medium-Voltage DC Distribution Networks

Contents | 更新时间：2026-06-24

- Solid-State Circuit Breaker Based on Cascaded Normally-On SiC JFETs for Medium-Voltage DC Distribution Networks
- Solid-State Circuit Breaker Based on Cascaded Normally-On SiC JFETs for Medium-Voltage DC Distribution Networks
- 现代电力系统保护与控制（英文） 2024年9卷第2期
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.23919/PCMP.2023.000143
  中图分类号：
- 纸质出版：2024
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Dong He, Haohui Zhou, Zheng Lan, 等. Solid-State Circuit Breaker Based on Cascaded Normally-On SiC JFETs for Medium-Voltage DC Distribution Networks[J]. 现代电力系统保护与控制（英文）, 2024,9(2).

Dong He, Haohui Zhou, Zheng Lan, et al. Solid-State Circuit Breaker Based on Cascaded Normally-On SiC JFETs for Medium-Voltage DC Distribution Networks[J]. Protection and Control of Modern Power Systems, 2024, 9(2).
Dong He, Haohui Zhou, Zheng Lan, 等. Solid-State Circuit Breaker Based on Cascaded Normally-On SiC JFETs for Medium-Voltage DC Distribution Networks[J]. 现代电力系统保护与控制（英文）, 2024,9(2). DOI： 10.23919/PCMP.2023.000143.

Dong He, Haohui Zhou, Zheng Lan, et al. Solid-State Circuit Breaker Based on Cascaded Normally-On SiC JFETs for Medium-Voltage DC Distribution Networks[J]. Protection and Control of Modern Power Systems, 2024, 9(2). DOI： 10.23919/PCMP.2023.000143.

摘要

Abstract

Solid-state circuit breakers (SSCBs) are critical components in the protection of medium-voltage DC distribution networks to facilitate arc-free

fast and reliable isolation of DC faults. However

limited by the capacity of a single semiconductor device

using semiconductor-based SSCBs at high voltage is challenging. This study presents the details of a 1.5 kV

63 A medium-voltage SSCB

composed primarily of a solid-state switch based on three cascaded normally-on silicon carbide (SiC) junction field-effect transistors (JFETs) and a low-cost programmable gate drive circuit. Dynamic and static voltage sharing among the cascaded SiC JFETs of the SSCB during fault isolation is realized using the proposed gate drive circuit. The selection conditions for the key parameters of the SSCB gate driver are also analyzed. Additionally

an improved pulse-width modulation current-limiting protection solution is proposed to identify the permanent overcurrent and transient inrush current associated with capacitive load startup in a DC distribution network. Using the developed SSCB prototype and the fault test system

experimental results are obtained to validate the fault response performance of the SSCB.

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