Results 21 to 30 of about 11,977,292 (286)

Dynamic Response Enhancement and Fault Protection of Boost Converter-Fed Brushless DC Motor in Aerospace Applications

open access: yesApplied Sciences, 2019
The permanent magnet (PM) brushless DC (BLDC) machine has been widely used in various applications due to its high reliability and simplicity. In aerospace applications, the requirements of its dynamic acceleration characteristic and fault protection ...
Wei Wang, Jingwen Wang
doaj   +1 more source

International White Book on DER Protection : Review and Testing Procedures [PDF]

open access: yes, 2011
This white book provides an insight into the issues surrounding the impact of increasing levels of DER on the generator and network protection and the resulting necessary improvements in protection testing practices.
Burt, Graeme   +7 more
core   +3 more sources

Analysis and RTDS Simulation on Suppression Methods for TV Fuses Frequently Blown

open access: yesZhongguo dianli, 2020
Potential transformer (TV) is an important equipment for measurement and protection in distribution network. The high voltage side of TV is usually equipped with fuse for protection, but abnormal fuse blown often occurs, affecting the safety of power ...
Yuan GUI   +5 more
doaj   +1 more source

Probability risk assessment of island operation event for large scale photovoltaic plant

open access: yesAutomatika, 2019
Original methodology for the calculation of island operation event occurrence possibility is proposed for the photovoltaic power plants connected to medium voltage grid.
Mihovil Ivas   +3 more
doaj   +1 more source

Design of a new type of integrated test bench for mine-used high-voltage protector

open access: yesGong-kuang zidonghua, 2016
A new type of integrated test bench for mine-used high-voltage protector was designed. The overall structure and design schemes of software and hardware of the test bench were introduced.
HUANG Hesong   +3 more
doaj   +1 more source

Voltage security evaluation based on perturbation method [PDF]

open access: yes, 2009
This is the post-print version of the final paper published in International Journal of Electrical Power & Energy Systems. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing,
Mousavi, A, Rashidinejad, M
core   +1 more source

Small-Area Radiofrequency-Energy-Harvesting Integrated Circuits for Powering Wireless Sensor Networks

open access: yesSensors, 2019
This study presents a radiofrequency (RF)-energy-harvesting integrated circuit (IC) for powering wireless sensor networks with a wireless transmitter with an industrial, scientific, and medical (ISM) of 915 MHz.
Guo-Ming Sung   +3 more
doaj   +1 more source

High Voltage Optical Fibre Sensor for Use in Wire Relay Electrical Protection Systems [PDF]

open access: yes, 2016
The last few decades have a wide spread use of optical fibre sensors in many applications. Optical fibre sensors have significant benefits over existing conventional sensors such as; high immunity to electromagnetic interference, the ability to transmit ...
Bashour, Rami
core   +1 more source

Analysis and Control of Low-Voltage Ride-Through Capability Improvement for PMSG Based on an NPC Converter Using an Interval Type-2 Fuzzy Logic System

open access: yesElektronika ir Elektrotechnika, 2019
Wind farms must be linked to the grid during the voltage sag. Therefore, the improvement of low-voltage ride-through (LVRT) capability of wind turbine (WT) is a vitally issue. Protection system based on an interval type-2 fuzzy logic system (IT-2 FLC) is
Altan Gencer
doaj   +1 more source

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben   +4 more
wiley   +1 more source

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