Results 111 to 120 of about 21,371 (301)
Research on commutation failure of Jinsu DC transmission project caused by a complex AC fault
The Journal of Engineering, 2019 Commutation failure is an important factor on safe and stable operation of the receiving-end power grid for high voltage direct current (HVDC) project. A commutation failure event in Jinsu DC transmission project caused by a complex AC failure was taken ...
Wei Peng +3 more
doaj +1 more source
Climate‐related exposures and seizures in children: A systematic review
Epilepsia, EarlyView.Abstract Objective Climate‐related exposures, including air pollution, temperature extremes, humidity, and atmospheric conditions, are increasingly recognized as potential seizure triggers. As climate change intensifies, understanding the environmental contributors to pediatric seizure risk has important implications for anticipatory guidance and ...
Caroline Sarpy +5 more
wiley +1 more source
Field–Circuit Model of a Novel PMDC Motor with Rectangular NdFeB Permanent Magnets in Ansys Maxwell
EnergiesAccurate analysis of commutation phenomena in permanent magnet DC (PMDC) motors requires simultaneous consideration of electromagnetic field distribution and armature circuit dynamics.
Paweł Strączyński +4 more
doaj +1 more source
A history of the tithe system in England, 1690-1850 with special reference to Staffordshire [PDF]
This thesis attempts to provide a general history of the tithe system during the last century and a half of its existence in its old form. It attempts this partly through a detailed study of one county, thus enabling a wider variety of legal ...
Evans, Eric J.
core
, 2017 Commutation failure is a common fault for line-commutated converters in the inverter. To reduce the possibility of commutation failure, many prediction algorithms based on alternating current (AC) voltage detection have already been implemented in high ...
Ziping Wu +6 more
core +1 more source
Hybrid Inverters With Dual Switching Frequencies for Switched Reluctance Motors
Energy Science &Engineering, EarlyView.A hybrid dual‐switching‐frequency inverter for SRMs is proposed, combining SiC and IGBT devices based on rotor inductance. The method enables accurate current tracking with simple hysteresis control, significantly reducing torque ripple, vibration, and acoustic noise while cutting inverter cost compared to full‐SiC solutions.
Fares S. El‐Faouri +4 more
wiley +1 more source
The Feasibility Test of Electric Propulsion Systems: Case Study for a Light and Fixed‐Wing Aircraft
Energy Science &Engineering, EarlyView.ABSTRACT This study investigates the feasibility and performance of a fully electric propulsion system (EPS) integrated into a light fixed‐wing aircraft. The system consists of a 65 kW‐class electric motor, a high‐efficiency inverter, and dual lithium‐ion battery packs with a total capacity of 27 kWh—collectively engineered to fulfill both power ...
Byeong Gyu Gang
wiley +1 more source
, 2016 Line commutated HVDC systems are widely used due to their high power ratings. However, one of the disadvantages of such HVDC systems is the high risk of commutation failures when AC disturbances arise.
Oketch, Innocent
core +1 more source
Feminist Anthropology, EarlyView.Abstract In this paper, we will construct and analyze intersecting definitions of womanhood among middle‐class women living in Karachi, Pakistan. Women are agents of their lives and are not passive voices. In this paper, we present narratives of women who resist “societal” narratives of womanhood to live a life of their choosing.
Urooba Ahmed Fatima +7 more
wiley +1 more source
Commutativity and Commutative Pairs of Some Differential Equations
CoRR, 2017 Scientific and Technological Research Council of TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [115E952]
openaire +4 more sources