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
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
Hepatitis C lipo-Viro-particle from chronically infected patients interferes with TLR4 signaling in dendritic cell. [PDF]
PLoS ONE, 2007 BACKGROUND: Hepatitis C virus (HCV) can be purified from serum of chronically-infected patients in the form of Lipo-Viro-Particles (LVP), which are triglycerid-rich lipoprotein-like particles containing viral RNA and proteins.
Sophie Agaugué +3 more
doaj +1 more source
A novel protection scheme for an LVDC distribution network with reduced fault levels [PDF]
, 2017 Low Voltage Direct Current (LVDC) distribution is one of the new promising technologies that have the potential to accelerate the wider integration of distributed renewables.
Burt, Graeme +2 more
core +1 more source
Proportion and failure analysis of full-bridge sub-modules in a hybrid MMC
The Journal of Engineering, 2019 Isolating DC bipolar short-circuit fault is one of the difficulties faced by the flexible DC distribution system. This study aims to the hybrid modular multi-level converter (MMC).
Yonghui Song +3 more
doaj +1 more source
Antiferromagnetism at the YBa2Cu3O7 / La2/3Ca1/3MnO3 interface
, 2004 The magnetic properties of a series of YBa2Cu3O7-x/La2/3Ca1/3MnO3 (YBCO/LC1/3MO) superlattices grown by dc sputtering at high oxygen pressures (3.5 mbar) show the expected ferromagnetic behaviour. However, field cooled hysteresis loops at low temperature
E. Baca +7 more
core +1 more source