Results 41 to 50 of about 12,263,286 (349)
DC fault isolation study of bidirectional dual active bridge DC/DC converter for DC transmission grid application [PDF]
, 2015 Fast isolation and detection of DC faults is currently a limiting factor in high power DC transmission grid development. Recent research has shown that the role of DC/DC converters is becoming increasingly important in solving various DC grid challenges ...
Aboushady, Ahmed A. +2 more
core +2 more sources
A DC-Reactor-Based Solid-State Fault Current Limiter for HVdc Applications
IEEE Transactions on Power Delivery, 2019 Expansion of high-voltage dc (HVdc) systems to multi-terminal HVdc (MT-HVdc) systems/grids considerably increases the short-circuit levels. In order to protect the emerging MT-HVdc systems/grids against fault currents, proper dc fault current limiters ...
Amir Heidary +3 more
semanticscholar +1 more source
IET Generation, Transmission & Distribution, 2020 The increasing permeation of the distributed generators in the power system brings great challenges for fault diagnosis, especially for the distribution networks with ungrounded neutral or grounded by Peterson coil as the fault current is limited and ...
Fang Shi +4 more
doaj +1 more source
电力工程技术, 2022 The fault characteristics of direct current (DC) grids can be analyzed by addressing the grid damping characteristics. However,the frequency-dependent characteristics of the transmission line parameters are usually ignored in the conventional grid ...
CHEN Siwei +5 more
doaj +1 more source
High-temperature superconducting fault current microlimiters
, 2009 High-temperature superconducting microbridges implemented with YBa(2)Cu(3)O(7-delta) thin-films are shown to be possible fault current limiters for microelectronic devices with some elements working at temperatures below the superconducting critical ...
+9 more
core +1 more source
Fault Recovery Analysis of Grid-Forming Inverters With Priority-Based Current Limiters
IEEE Transactions on Power Systems, 2023 Grid-forming (GFM) inverters are required to operate robustly against grid faults. However, due to the limited over-current capability of inverters, current-limiting controls are usually applied to protect these semiconductor devices, which may prevent ...
Bo Fan, Xiongfei Wang
semanticscholar +1 more source
Sensors, 2022 With the increased demand for permanent magnet synchronous machines (PMSMs) in various industrial fields, interturn short fault (ITSF) diagnosis of PMSMs is under the limelight.
Hyeyun Jeong +3 more
doaj +1 more source
Frequency Extraction of Current Signal Spectral Components:A New Tool for the Detection of Rotor Electrical Faults in Induction Motors [PDF]
, 2019 This work expands the classical current signature analysis in induction machines in a two-stage spectral decomposition manner. The proposed methodology can be summarized in two main steps: initially, the current signals are analyzed using a time ...
Arvanitakis, I +3 more
core +1 more source
Analysis of DC offset in fault current caused by machines in a medium voltage distribution network
The Journal of Engineering, 2019 This study presents a study on the time when the short-circuit fault current in an MV distribution network will cross the zero point in the presence of DC offset affected by the local synchronous and/or induction machines.
Erfan Bashar +6 more
doaj +1 more source
Transform fault earthquakes in the North Atlantic: Source mechanisms and depth of faulting [PDF]
, 1988 The centroid depths and source mechanisms of 12 large earthquakes on transform faults of the northern Mid-Atlantic Ridge were determined from an inversion of long-period body waveforms.
Bergman, Eric A., Solomon, Sean C.
core +2 more sources