Results 11 to 20 of about 1,605 (260)
Fault Current Characteristics of the DFIG under Asymmetrical Fault Conditions [PDF]
During non-severe fault conditions, crowbar protection is not activated and the rotor windings of a doubly-fed induction generator (DFIG) are excited by the AC/DC/AC converter.
Zhe Zhang, Xianggen Yin, Zhang Zhe
exaly +4 more sources
Numerous industrial applications involve loads that are very sensitive to electrical supply instabilities. These instances involve various types of voltage imbalances as well as more serious disturbances such as symmetrical and asymmetrical faults.
Syed Sabir Hussain Bukhari +2 more
exaly +3 more sources
Fault Tolerant CCS-MPC for Asymmetrical DTP-PMSM Drives Assisted by Fault Detection Algorithm
Fault tolerance is a highly desirable feature for safety-critical electric drive applications. This paper proposes an open-circuit fault tolerant model predictive controller (FT-MPC) for asymmetrical dual three-phase (DTP) permanent magnet synchronous ...
Adriano Navarro-Temoche +4 more
doaj +3 more sources
Active fault tolerant control for twin wind turbine subject to asymmetric fault [PDF]
This paper addresses the problem of control of a twin wind turbine which is subject to an electrical fault affecting only one stator phase of one turbine. An active fault tolerant control is proposed. The performance and robustness of the proposed control, comparing to a passive fault tolerant one developed in the literature, are shown through ...
Mariem Makni +5 more
openaire +3 more sources
Simulation-based post-fault analysis in WECS using DFIG systems under an unbalanced fault scenario
Fault analysis in an integrated Wind Energy Conversion System (WECS) is the highest priority factor to be taken into account for distributed generation (DG).
Muzamil Hussain Wadho +3 more
doaj +1 more source
Assessing Asymmetric Fault-Tolerant Software [PDF]
The most popular forms of fault tolerance against design faults use "asymmetric" architectures in which a "primary" part performs the computation and a "secondary" part is in charge of detecting errors and performing some kind of error processing and recovery. In contrast, the most studied forms of software fault tolerance are "symmetric" ones, e.g.
Peter T. Popov, Lorenzo Strigini
openaire +2 more sources
In case of an asymmetrical fault in PV accessed system, the inverter will simultaneously control the outputs of positive and negative sequence currents.
XU Xiaochun +3 more
doaj +1 more source
The negative-sequence current component and harmonic components generated when an asymmetrical fault occurs in the power grid seriously affect the normal operation of the photovoltaic (PV) grid-connected inverter.
Shiji Tian +3 more
doaj +1 more source
Improved DFIG capability during asymmetrical grid faults [PDF]
In the wind power application, different asymmetrical types of the grid fault can be categorized after the Y/d transformer, and the positive and negative components of a single-phase fault, phase-to-phase fault, and two-phase fault can be summarized.
Dao Zhou, Frede Blaabjerg
openaire +3 more sources
Submodule fault-tolerant control based adaptive carrier-PDPWM for modular multilevel converters
The modular multilevel converter (MMC) is considered a very promising candidate for medium-voltage and/or high-power grids. One of the major concerns in half-bridge MMCs, especially with large number of levels, is the fault occurs at the converter ...
Ahmed Elsanabary +4 more
doaj +1 more source

