Results 111 to 120 of about 1,496 (223)
Voltage Source Converters (VSCs) operating as active rectifiers inherently lack current-limiting capabilities for faults occurring on the DC side due to the presence of freewheeling diodes in IGBT or MOSFET structures.
Evangelos E. Pompodakis +1 more
doaj +1 more source
Feasibility and Simulation Study of DC Hybrid Circuit Breakers
Interruption of DC is more challenging than that of AC because of the absence of DC zero-crossings. This thesis proposes an alternative counter-voltage (ACV) DC hybrid circuit breaker (DC-HCB).
Shang, Yang
core +1 more source
Electronically Assisted Direct Current Circuit Breakers
DC power is gaining tractions recently, however, DC fault protection remains a major technical challenge. Popular and cost-effective AC mechanical circuit breakers do not offer sufficient DC interruption capability.
Feng, Yanjun
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Estimation of vacuum condition in vacuum circuit breakers
In this paper a method is described for the estimation of the pressure inside vacuum circuit breakers which have been in operation for several years. The method is applicable for measurements in the field and uses only electrical measurement techniques ...
Gruntjes, R.J.B. +2 more
core +1 more source
Review of HVDC Circuit Breakers Topologies
Voltage Source Converter-High Voltage Direct Current (VSC-HVDC) is the most efficient and reliable method for electrical power transmission over long distances.
Muriithi, Christopher M. +3 more
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A DC circuit breaker for an electric vehicle battery pack
Electric vehicle battery packs require DC circuit breakers for safety. These must break thousands of Amps DC at hundreds of Volts. The Sunshark solar racing car has a 140V 17Ahr battery box which needs such a breaker.
Walker, G. R., Walker, Geoffrey R.
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High-voltage dc (HVDC) transmission systems are commonly used to connect offshore wind power plants (WPPs) with onshore ac grids. However, conventional half-bridge-based modular multilevel converters (MMCs) are vulnerable to dc faults, making it ...
Mitsuyoshi Enomoto +3 more
doaj +1 more source
HVDC circuit breakers modeling in multiterminal grids
Transition towards sustainable energy systems lead to transformation of the existing electrical power grids. One of the key enabling technologies for this transformation is high voltage direct current (HVDC) technology that has range of advantages ...
Yanushkevich, Alexander
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