Demonstration of Solid State Circuit Breakers within Low Voltage DC Distribution System for Shipboard Applications

Langston, James; Hauer, J.F.; Leonard, Isaac; Sloderbeck, M.; Steurer, M.; Dalessandro, Donald; Fikse, T. H.; Borraccini, Joseph

doi:10.1109/ests.2019.8847821

Cited by 6 publications

(2 citation statements)

References 11 publications

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“…The SSDCCBs use highpower semiconductor devices to realise current interruption. Thanks to the power electronic device's breaking time which is as short as microseconds, the breaking speed of the SSDCCBs is extremely fast and current limiting effect is excellent as well [5,6]. However, the on-state losses of solid-state switch is high, which requires cooling system to ensure the heat balance of the CB [7,8].…”

Section: Introductionmentioning

confidence: 99%

A fast LVDC vacuum hybrid circuit breaker: Dielectric recovery and design consideration

Liu

Liang

et al. 2021

IET Generation Trans & Dist

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Aiming at the fast protection requirements of electrical ships LVDC distribution system, this paper studies a topology of unidirectional vacuum hybrid circuit breaker. The hybrid circuit breaker is an improved current injection LVDC breaker based on precharged capacitor, which improves the dielectric recovery capability of vacuum interrupter after artificial current zero by using a freewheel diode. A synthetic test platform is built to study the dielectric strength recovery characteristics of a 45 mm diameter CuCr50 butt contact vacuum interrupter (driven by Thomson coil actuator, average opening speed of about 3 m/s)under high current(about 20 kA) and small gap(about 1 mm). The experimental results indicate that the dielectric strength of the contact can recover at a very fast speed within the arc time of 100 µs; when the arc time is increased to 320 µs, the dielectric strength of the contact cannot recover for a long time. Therefore, the design principle of the circuit breaker is obtained: within the arc time of 100 µs, by increasing the arc time can increase the contact distance, so the transient interruption voltage tolerance margin of the circuit breaker can be improved. Based on the results of the test, this paper also proposes a calculation method of forced commutation circuit parameters, which is verified by the simulation. The research results show that the DC circuit breaker can realise the rapid breaking of 20 kA fault current within 2 ms, and has a good application prospect in the LVDC distribution system.

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Section: Introductionmentioning

confidence: 99%

A fast LVDC vacuum hybrid circuit breaker: Dielectric recovery and design consideration

Liu

Liang

et al. 2021

IET Generation Trans & Dist

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“…Mitigating the voltage unbalance and to reduce the power loss in bipolar low voltage dc distribution system is proposed in [20] where IGBT-based static load transfer switch (SLTS) algorithm is used to generate the switching signals in reconfiguring the structure of loads. Application of SSCB in 1 kV dc distribution system for shipboard applications has been described in [21] which can isolate the fault with less than 50 µs. In this research, a switchboard-based control (SBC) system is used as the back-up protection of SSCB to observe the undervoltage condition and trip the breaker.…”

Section: Introductionmentioning

confidence: 99%

Review of Solid State Transfer Switch on Requirements, Standards, Topologies, Control, and Switching Mechanisms: Issues and Challenges

et al. 2020

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Large-scale industrial loads, sensitive loads, and electrical power distribution systems suffer from power quality issues such as voltage interruptions, flickering, and sags which can cause a significant financial loss. The semiconductor based solid-state transfer switch (SSTS) can utilize the dual power feeders to protect the loads against these power disturbance issues. Conventional SSTS often requires more than quarter cycles to complete the transfer process because of load dependent commutation. Numerous researchers proposed the improved SSTS with impulse commutated circuit, which can reduce the transfer time and provide better ride-through capability against voltage sags. However, the SSTS specification depends on the application types and design procedure. Recently, hybrid SSTS has been introduced by the researchers to overcome all these issues. It has been investigated that not much papers are available in literature so far to aggregate all these issues. Therefore, towards the novel contribution of research, this review critically described the requirements, standards, and specifications of SSTS; control and switching mechanisms; and application of SSTS as single or hybrid topology, to give a comprehensive idea to the future researchers about the design of SSTS for a specific application. This paper also contributes to analyzing the key issues related to the SSTS applications, which can provide an easy control strategy and reduce the transfer time significantly. Overall, this research will strengthen the efforts of the researchers and industrialists to select, develop, and design the appropriate SSTS for a particular application.

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Power Hardware-in-the-Loop Simulation to Verify Protection Coordination for DC Microgrid

Watanabe

Langston

Hauer

et al. 2023

2023 IEEE Applied Power Electronics Conference and Exposition (APEC)

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Demonstration of Solid State Circuit Breakers within Low Voltage DC Distribution System for Shipboard Applications

Cited by 6 publications

References 11 publications

A fast LVDC vacuum hybrid circuit breaker: Dielectric recovery and design consideration

A fast LVDC vacuum hybrid circuit breaker: Dielectric recovery and design consideration

Review of Solid State Transfer Switch on Requirements, Standards, Topologies, Control, and Switching Mechanisms: Issues and Challenges

Power Hardware-in-the-Loop Simulation to Verify Protection Coordination for DC Microgrid

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