1MW bi-directional DC solid state circuit breaker based on air cooled reverse blocking-IGCT

Agostini, Francesco; Vemulapati, Umamaheswara; Torresin, Daniele; Arnold, Martin; Rahimo, Munaf; Antoniazzi, Antonello; Raciti, Luca; Pessina, Davide; Suryanarayana, Harish

doi:10.1109/ests.2015.7157906

Cited by 69 publications

(17 citation statements)

References 3 publications

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“…Fig. 5 shows that this will result in slightly higher conduction losses when compared to other existing or proposed SSBTS topologies like [8], [13], [16], [17]. Nevertheless, the SSBTS is a device the role of which is to provide a first line of defence against faults in the PDN in which it is installed.…”

Section: Ssbts Topologymentioning

confidence: 98%

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Scalable Solid-State Bus-Tie Switch for Flexible Shipboard Power Systems

Ulissi

Lee

Dujić

2021

IEEE Trans. Power Electron.

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The need to increase efficiency and reduce operating cost of shipboard DC power distribution networks results in a desire to increase the operating voltage of such installations to the medium voltage levels. Devices such as solid state bus-tie switches are an essential component of such systems, as they allow for system reconfigurations and prevent fault propagation across different sections of the system. This paper presents a scalable solid state bus-tie switch topology designed initially for low voltage power distribution networks, but easily scalable in terms of voltage and current. The use of a single active device greatly increases simplicity and reliability of the solution. The ability to extend the current and voltage ratings has been verified on the prototypes through extensive experimental tests in parallel and series connection, respectively. Several methods for fault detection are discussed and further verified experimentally.

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Section: Ssbts Topologymentioning

confidence: 98%

“…• Interrupting topologies, that interrupt the current in both sides of the DC bus upon opening [13]- [17] ( Fig. 4a).…”

Section: Ssbts Topologymentioning

confidence: 99%

Scalable Solid-State Bus-Tie Switch for Flexible Shipboard Power Systems

Ulissi

Lee

Dujić

2021

IEEE Trans. Power Electron.

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“…This topology utilizes reverse-blocking IGCTs (RB-IGCTs) which have been proposed for use in solid-state DC circuit breakers [21], and are capable of blocking both forward and reverse voltages, but can only conduct forward currents [22]. RB-IGCTs have also been shown to have very low conduction losses, with a voltage drop of just 0.9 V at 1 kA/125 °C for the 2.5 kV version [22].…”

Section: A Reverse-blocking Igct Topologymentioning

confidence: 99%

Comparative Analysis of an MV Neutral Point Clamped AC-CHB Converter With DC Fault Ride-Through Capability

Collins

Green

2020

IEEE Trans. Ind. Electron.

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The AC side cascaded H-bridge converter with a two-level main bridge has previously been proposed as a fault tolerant converter for HVDC. This paper explores the benefits of replacing the two-level bridge with a neutral point clamped three-level (NPC) bridge for MVDC applications and defines the optimum operating conditions for this case. By modifying the topology to include an NPC main bridge, the peak stack voltage during normal operation is decreased considerably which results in a 58% reduction in the required number of sub-modules (SM), thereby significantly increasing efficiency. However, this sacrifices the fault ride-through capability as the stacks are no longer able to support the AC voltage and thus two new SM topologies are proposed. The proposed topologies function as single full-bridges with two capacitors in parallel during normal operation. Under fault conditions, the SMs divide into two series connected full-bridges to enable DC fault ride-through. Reverse-blocking IGCTs or ultra-fast mechanical switches are used to bypass the IGBTs which are unused in normal operation and therefore the topology maintains a high efficiency. Simulation results are shown, and the proposed topologies are compared with more conventional designs in terms of efficiency, energy storage requirement and device count.

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“…Three types of IGCTs have been presented, namely asymmetric (A-IGCT), reverse blocking (RB-IGCT) and reverse conducting (RC-IGCT) IGCTs [14]. The first switch can only block and conduct in forward direction.…”

Section: Protection Challenges In a Potential Mvdc Power Gridmentioning

confidence: 99%

Performance evaluation of high power semiconductor devices employed in solid-state circuit breakers for MVDC grids

Giannakis

Peftitsis

2019

2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)

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This paper presents a performance evaluation of power losses of three high-power and high-voltage power semiconductor devices, namely, IGBTs, BIGTs, and IGCTs operating in solid-state DC circuit breakers for medium voltage Direct Current grids. The performance of each breaker is evaluated for a wide range of DC voltages and load conditions under steady-state operation, whereas the criteria are the conduction losses associated with the switches and the corresponding junction temperature. The IGCT-based solid-state breaker achieved the lowest power losses, while the IGBT-based performed the highest losses under all the investigated cases. Last but not least, a comparative study regarding the transient responses of the three devices when a short-circuit occurs is also examined and presented. The superiority of BIGT-based breaker in terms of minimizing the short-circuit current is revealed.

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1MW bi-directional DC solid state circuit breaker based on air cooled reverse blocking-IGCT

Cited by 69 publications

References 3 publications

Scalable Solid-State Bus-Tie Switch for Flexible Shipboard Power Systems

Scalable Solid-State Bus-Tie Switch for Flexible Shipboard Power Systems

Comparative Analysis of an MV Neutral Point Clamped AC-CHB Converter With DC Fault Ride-Through Capability

Performance evaluation of high power semiconductor devices employed in solid-state circuit breakers for MVDC grids

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