IEEE AccessThe rapid growth in HVDC (High Voltage Direct Current) grids has shown the falls of point-to-point connections. Several challenges such as the requirement of DC (Direct Current) fault blocking capability, interfacing of different grounding schemes ...
Mohamed Mansour +4 more
doaj +1 more source
Active control of DC fault currents in DC solid-state transformers during ride-through operation of multi-terminal HVDC systems [PDF]
, 2016 When a pole-to-pole dc fault occurs in a multi-terminal HVDC system, it is desirable that the stations and dc solid-state transformers on healthy cables continue contributing to power transfer, rather than blocking.
Li, Rui +3 more
core +1 more source
Randomized block coordinate DC algorithm
EURO Journal on Computational OptimizationWe introduce an extension of the Difference of Convex Algorithm (DCA) in the form of a randomized block coordinate approach for problems with separable structure. For n coordinate-blocks and k iterations, our main result proves a non-asymptotic convergence rate of O(n/k) in expectation, with respect to a stationarity measure based on a Forward-Backward
Hoomaan Maskan +3 more
openaire +2 more sources
NALISA SWITCHING SNUBBER AKTIF UNTUK BLOCK KONVERTER DC / DC
Sains & Teknologi, 2019 Problems using the snubber circuit at switcing electronic in buck converter circuit is to reduced of power losses caused by there is no other walked other dissimilar for the load current of burden of moment of switching of electronic of turn off, so that collector voltage will appear in the collector terminal.
Dodie Indryanto, R. Ahmad Cholilurrahman
openaire +1 more source
An auto-reclosing scheme for DC circuit breaker in VSC-HVDC transmission system
The Journal of Engineering, 2019 When a DC line fault happens, the converter will be blocked instantly. This leads to an interruption of power transmission and influences the stability of DC and AC systems.
Yuan Wang +3 more
doaj +1 more source
A Unified Arm Module-Based Average Value Model for Modular Multilevel Converter
IEEE Access, 2020 Modeling modular multilevel converter (MMC) for electromagnetic transients is challenging due to the massive number of switching devices. The fast and simultaneous switching events lead to high computational burden as the number of submodules in the MMC ...
Xuekun Meng +3 more
doaj +1 more source
Pre-charging and DC fault ride-through of hybrid MMC based HVDC systems [PDF]
, 2015 Compared to half-bridge based MMCs, full-bridge based systems have the advantage of blocking dc fault, but at the expense of increased power semiconductors and power losses.
Morrow, D John +3 more
core +1 more source
The Alternate Arm Converter: A New Hybrid Multilevel Converter With DC-Fault Blocking Capability
, 2013 This paper explains the working principles, supported by simulation results, of a new converter topology intended for HVDC applications, called the alternate arm converter (AAC).
Critchley, R +6 more
core +1 more source
DC-SIGN promotes Japanese encephalitis virus transmission from dendritic cells to T cells via virological synapses. [PDF]
, 2017 Skin-resident dendritic cells (DCs) likely encounter incoming viruses in the first place, and their migration to lymph nodes following virus capture may promote viral replication.
A Mathur +29 more
core +1 more source
PaRiS: Causally Consistent Transactions with Non-blocking Reads and Partial Replication [PDF]
, 2019 Geo-replicated data platforms are at the backbone of several large-scale online services. Transactional Causal Consistency (TCC) is an attractive consistency level for building such platforms.
Didona, Diego +2 more
core +2 more sources