To protect the converters and minimize the power transmission interruption during dc line
faults, it is necessary to detect the faults at ultra high speed for the modular multilevel …

Fast and reliable DC fault detection is one of the main challenges for modular multilevel
converter (MMC) based DC grid with DC circuit breakers (DCCBs). This paper extracts the …

Given the current evolution of Voltage Source Converters (VSC), Multi-Terminal High
Voltage Direct Current (MTDC) grids are now becoming a real possibility. Still, some …

The fast dc line protection is one of the key techniques for the multi-terminal flexible dc grid
whose main technical difficulty lies in quick and reliable fault identification. The traditional …

Ease of integration of the variable speed diesel generators resulting in substantial reduction
of the fuel consumption is the key motivation for the development of the dc shipboard power …

Microgrids, which are small electric power systems, accommodate different distributed
generations and energy storage system. When faults occur outside or inside a microgrid, the …

Series-connected-based offshore wind farms can eliminate bulky central offshore
converters, transformers, and platforms. In a series-connected-based offshore wind farm, the …

Fast and reliable direction criterion is important for the protection of multi-terminal HVDC
grid, not only for direction pilot protection, but also for excluding backward fault in …

摘要快速可靠的方向保护对直流线路保护研究具有重要意义. 传统行波方向保护基于正反向行波
幅值比识别故障方向, 保护动作速度快且无需依赖线路边界, 应用前景广阔. 但研究发现 …

For modular multilevel converter (MMC) based DC grids, current-limiting reactors (CLRs) are
mainly employed to suppress the fault current and provide boundary effects to detect internal …