Semiconductor Devices in Solid-State/Hybrid Circuit Breakers: Current Status and Future Trends

Gu, Chunyang; Wheeler, Patrick; Castellazzi, Alberto; Watson, Alan J.; Effah, Francis Boafo

doi:10.3390/en10040495

Cited by 37 publications

(15 citation statements)

References 48 publications

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“…In addition, there are more hybrid bridge structures in the ac field, like the flux coupling type in [90], the fully controllable switch type in [91] and other hybrid bridge types in [92]. They combine the bridge structure with other topologies to achieve better performance.…”

Section: A Bridge Type Solid-state Inductive Fclmentioning

confidence: 99%

Inductive Fault Current Limiters in VSC-HVDC Systems: A Review

et al. 2020

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Fast emerging fault current levels in high voltage direct current (HVDC) systems has always been a significant obstacle to building a safer and more reliable grid. Inductive fault current limiters (FCLs), compared with its resistive counterpart, are very effective in restricting the fault rising speed that causes major damage during the whole fault process. In this study, a comprehensive review of the methods used for building inductive type FCLs in HVDC systems is presented. The fault current characteristics of the modern HVDC system is discussed to obtain the basic requirements for the FCL. On the basis of different technological domains, various inductive-type FCL topologies and devices are well categorized and analyzed. After the overall discussion and comparison, representative works, as well as new progress and future prospects, are conveyed in detail. One may find the content of this study helpful as a detailed literature review or a practical technical guidance of this field.

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Section: A Bridge Type Solid-state Inductive Fclmentioning

confidence: 99%

Inductive Fault Current Limiters in VSC-HVDC Systems: A Review

et al. 2020

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“…It is required that the circuit breaker should work with a high level of safety and reliability to either switch fast or reduce the fault current. Several breaker topologies are analyzed and discussed in [24]; however, both of them use more than two switches, this will increase the cost and complexity of the circuit. The topology of the SSCB with SiC MOSFET is proposed in [25], the fault detection circuit is composed of two resistors to detect variations in gate voltage.…”

Section: Circuit Topology and Operation Principlementioning

confidence: 99%

A Digital-Controlled SiC-Based Solid State Circuit Breaker with Soft Switch-Off Method for DC Power System

Qin

Xun

et al. 2019

Electronics

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Due to the lower on-state resistance, direct current (DC) solid state circuit breakers (SSCBs) based on silicon-carbide (SiC) metal-oxide-semiconductor field-effect transistors (MOSFETs) can reduce on-state losses and the investment of the cooling system when compared to breakers based on silicon (Si) MOSFETs. However, SiC MOSFETs, with smaller die area and higher current density, lead to weaker short-circuit ability, shorter short-circuit withstand time and higher protection requirements. To improve the reliability and short-circuit capability of SiC-based DC solid state circuit breakers, the short-circuit fault mechanisms of Si MOSFETs and SiC MOSFETs are revealed. Combined with the desaturation detection (DESAT), a “soft turn-off” short-circuit protection method based on source parasitic inductor is proposed. When the DESAT protection is activated, the “soft turn-off” method can protect the MOSFET against short-circuit and overcurrent. The proposed SSCB, combined with the flexibility of the DSP, has the μs-scale ultrafast response time to overcurrent detection. Finally, the effectiveness of the proposed method is validated by the experimental platform. The method can reduce the voltage stress of the power device, and it can also suppress the short-circuit current.

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“…This is a challenge for mechanical circuit breakers as their operating time is relatively long (12.5 ms) [12]. To address this, significant research is being carried out into the development of solid-state (SSCBs) and hybrid circuit breakers which have exhibited fault clearing times of 0.4 ms and 6.5 ms respectively [13]. Whilst these present a solution to the harsh time constraints, they currently are not commercially available and are financially expensive solutions [14].…”

Section: Challenges For Existing DC Protection Schemes Against mentioning

confidence: 99%

An Investigation into the Limitations of the Combined dv/dt and di/dt Protection Technique for Compact d.c. Distribution Systems

Smith

Wang

Emhemed

et al. 2018

2018 53rd International Universities Power Engineering Conference (UPEC)

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d.c. distribution networks interfaced by two-level voltage source converters (VSCs) are characterised by rapid fault current development, which places severe time constraints on d.c. protection. A proposed solution to ease this is the implementation of advanced converters with current management capabilities such as modular multilevel converter (MMC). However, the limited fault current caused by MMC will make the widely used LV current-based protection less effective. A new method, targeted utility-scale LVDC distribution networks at conditions with limited fault current, combining dv/dt and di/dt has been proposed in literature with promising results for fast and selective protection. However, further investigation must be carried out to determine its applicability and limitations for protecting future compact d.c. distribution systems. This paper presents an investigation into the selective capabilities of the combined dv/dt and di/dt protection technique for a range of fault scenarios. The study considers the effects of sampling frequency, fault locations, and the network architecture with the aim of determining the limitations of the protection method. A simplified converter model with active fault current limiting and blocking capabilities is built in PSCAD/EMTDC and implemented in a radial and ring compact d.c. distribution network to facilitate the study.

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Semiconductor Devices in Solid-State/Hybrid Circuit Breakers: Current Status and Future Trends

Cited by 37 publications

References 48 publications

Inductive Fault Current Limiters in VSC-HVDC Systems: A Review

Inductive Fault Current Limiters in VSC-HVDC Systems: A Review

A Digital-Controlled SiC-Based Solid State Circuit Breaker with Soft Switch-Off Method for DC Power System

An Investigation into the Limitations of the Combined dv/dt and di/dt Protection Technique for Compact d.c. Distribution Systems

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