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A DC Solid-State Circuit Breaker Based on Transient Current Commutation
Journal article   Open access   Peer reviewed

A DC Solid-State Circuit Breaker Based on Transient Current Commutation

Reza Kheirollahi, Hua Zhang, Shuyan Zhao and Fei Lu
IEEE journal of emerging and selected topics in power electronics, v 10(4), pp 4614-4625
Aug 2022
DOI: https://doi.org/10.1109/JESTPE.2021.3116605
Featured in Collection :   UN Sustainable Development Goals @ Drexel
url
https://doi.org/10.1109/jestpe.2021.3116605View
Accepted (AM)Open Access (Publisher-Specific),  Open

Abstract

Active injection circuit (AIC) Logic gates MOSFET Oscillators Silicon carbide solid-state circuit breakers (SSCBs) Switches Transient analysis transient current commutation (TCC) Voltage
This article proposes a new dc solid-state circuit breaker (SSCB) based on silicon carbide (SiC) MOSFETs. There are two main contributions. First, a transient current commutation (TCC) is obtained in the main switch during current interruption. To achieve this, a compact and fast active injection circuit (AIC) is employed. TCC brings two main benefits: 1) it eliminates the effects of parasitic inductances in circuit connections and removes voltage oscillations on the gate of the main switch, which prevents spurious turn-on and 2) it eliminates the transient power shock on the switch during turn-off, which extends the lifetime of SSCB and increases its reliability. Second, the voltage on the employed metal oxide varistor (MOV) is reduced to zero during the OFF-state. This extends the maximum allowable dc bus voltage on the SSCB and solves the MOV reliability issue in the SSCBs. The presented SSCB employs a time-sequence control and needs no real-time detections of the dc current, which simplify the design. LTspice simulations of 380 V/80 A and 600 V/80 A are presented, and the results are compared with MOV- and MOV resistor-capacitor-diode (MOV-RCD)-based SSCBs. Also, experiments of a 380 V/80 A prototype validate the effectiveness of the proposed SSCB in practice where the voltage on the SSCB is clamped to 721 V with a fixed response time of 9.4 \mu \text{s} .

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29 citations in Web of Science
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UN Sustainable Development Goals (SDGs)

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#7 Affordable and Clean Energy

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Web of Science research areas
Engineering, Electrical & Electronic
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