Results 21 to 30 of about 488,244 (193)

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

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

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

Design of Over/Under Voltage Protection Relay using Arduino Uno for FREEDM System

open access: yesEuropean Journal of Electrical Engineering and Computer Science, 2018
This paper presents a new design for over/under voltage (OV/UV) protection scheme using Arduino microcontroller. The protection scheme is designed to protect the solid-state transformer (SST) branch of a Future Renewable Electric Energy Delivery and ...
M. Kotb   +2 more
semanticscholar   +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

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

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

Experimental Modeling of Forward Recovery Characteristics of IGBT for DC Circuit Breaker

open access: yesZhongguo dianli, 2021
DC circuit breaker is the main means to clear the faults in VSC-HVDC power grid. Before action of the hybrid DC circuit breaker, the IGBT in the transfer branch is in a state of zero voltage and zero current.
Hong SHEN   +4 more
doaj   +1 more source

Mine intrinsic safety power supply based on adjustable capacity and protection time

open access: yesMeikuang Anquan, 2021
In view of the contradiction between the capacity and impact resistance of mine intrinsically safe power supply, an intrinsically safe power supply with adjustable capacity and protection time, self-recovery and slow start function is designed.
ZOU Dedong, LIU Peng
doaj   +1 more source

An Improved Inverse-Time Over-Current Protection Method for a Microgrid with Optimized Acceleration and Coordination

open access: yesEnergies, 2020
This paper presents an improved inverse-time over-current protection method based on the compound fault acceleration factor and the beetle antennae search (BAS) optimization method for a microgrid.
Liang Ji   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy