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Medium voltage direct current (MVDC) distribution networks have been considered for various applications, such as offshore wind farm collector systems, all-electric naval vessels, and aircraft. MVDC circuit breakers are a critical technology to directly manage faults in multi-terminal DC (MTDC) networks. However, DC current breaking is much more challenging than in AC systems because there is no natural...
Multi-terminal Voltage-Sourced Converter (VSC) High Voltage Direct Current (HVDC) transmission is expected to play a key role in future power transmission grids. Compared with AC transmission, DC transmission is more vulnerable to faults due to the lower DC side impedances and sensitive power electronics used in the converters. DC protection issues must be solved before any multi-terminal VSC-HVDC...
Circuit breakers for High Voltage Direct Current (HVDC) are seen as a required technological step in the development of HVDC grids. The development of several new HVDC circuit breaker prototypes indicate that this step may be achieved in the years to come. In order to facilitate the installation of HVDC circuit breakers, appropriate standards and tests need to be developed. These tests and standards...
Voltage-Sourced Converter (VSC) HVDC is attracting significant attention as the UK tries to meet its renewable energy targets. However, compared with the traditional Current-Sourced Converter (CSC) HVDC, VSC-HVDC is more vulnerable to DC faults due to the lower DC side impedances and more sensitive power electronics used in its construction. This paper investigates the equivalent two-level converter...
Voltage Source Converter (VSC) HVDC transmission is receiving significant attention as the UK is trying to meet its renewable energy targets. However, VSC-HVDC is more vulnerable to DC faults compared to more traditional CSC-HVDC transmission techniques, due to the low DC side impedances and sensitive power electronics within the converters. This paper investigates the two-level converter system response...
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