Results 261 to 270 of about 272,304 (330)
Some of the next articles are maybe not open access.
Analysis of short-circuit asymmetrical currents in power distribution systems
2012 47th International Universities Power Engineering Conference (UPEC), 2012This work focuses on the study of electromagnetic transients existing in power systems in the occurrence of phase to ground and three phase faults, aiming to evaluate the dynamic capability of circuit breakers, switch disconnectors and current transformers.
M. J. S. Ramos +4 more
openaire +1 more source
IEEE transactions on power electronics, 2023
Active power backflow is a unique problem of three-phase isolated cascaded H-bridge (CHB) PV inverter during asymmetric grid voltage fault, resulting in the continuous rise of H-bridge dc-bus voltages and that the inverter will be eventually shut down ...
Tao Zhao +5 more
semanticscholar +1 more source
Active power backflow is a unique problem of three-phase isolated cascaded H-bridge (CHB) PV inverter during asymmetric grid voltage fault, resulting in the continuous rise of H-bridge dc-bus voltages and that the inverter will be eventually shut down ...
Tao Zhao +5 more
semanticscholar +1 more source
2023 IEEE 6th International Electrical and Energy Conference (CIEEC), 2023
For dual three-phase surface-mounted PM (DTPSPM) machines, three-phase short circuit (3PSC) is usually assumed to happen in only one winding group whilst the remaining one is normally supplied. In this paper, by fully utilizing healthy winding group (HWG)
Yidong Du +5 more
semanticscholar +1 more source
For dual three-phase surface-mounted PM (DTPSPM) machines, three-phase short circuit (3PSC) is usually assumed to happen in only one winding group whilst the remaining one is normally supplied. In this paper, by fully utilizing healthy winding group (HWG)
Yidong Du +5 more
semanticscholar +1 more source
Effect of asymmetrical dimensions in short circuit forces of power transformers
2005 International Conference on Electrical Machines and Systems, 2005Calculation of the short circuit forces is very important in power transformer design. The main goal of this paper is calculation of these forces along the LV&HV windings in power transformer by using finite element method (FEM). After that, we described how forces are changing by increasing of asymmetrical dimensions and misalignment of LV&HV ...
M. Allahbakhsi, K. Abbaszadeh, A. Akbari
openaire +1 more source
, 2020
In comparison with symmetric small molecule acceptors (SMAs), their asymmetric counterparts have received much less attention. Organic solar cells (OSCs) based on asymmetric non-fullerene SMAs previously reported show relatively low power conversion ...
Fangfang Cai +10 more
semanticscholar +1 more source
In comparison with symmetric small molecule acceptors (SMAs), their asymmetric counterparts have received much less attention. Organic solar cells (OSCs) based on asymmetric non-fullerene SMAs previously reported show relatively low power conversion ...
Fangfang Cai +10 more
semanticscholar +1 more source
Efficient Estimation and Characteristic Analysis of Short-Circuit Currents for MMC-MTDC Grids
IEEE transactions on industrial electronics (1982. Print), 2021Short-circuit current calculation and its characteristic analysis are the foundation of selecting circuit breakers and designing protection systems.
Hua Ye +3 more
semanticscholar +1 more source
IEEE Transactions on Antennas and Propagation, 2022
An extraction technique is proposed for electromagnetic characterization of metal-backed multilayer metamaterial (MM) structures demonstrating reflection-asymmetric property.
U. Hasar +7 more
semanticscholar +1 more source
An extraction technique is proposed for electromagnetic characterization of metal-backed multilayer metamaterial (MM) structures demonstrating reflection-asymmetric property.
U. Hasar +7 more
semanticscholar +1 more source
IEEE transactions on industrial electronics (1982. Print), 2021
This article investigates the influence of start rotor position on three-phase short-circuit (3PSC) current in dual three-phase surface-mounted permanent magnet (DTPSPM) machines.
Yidong Du +5 more
semanticscholar +1 more source
This article investigates the influence of start rotor position on three-phase short-circuit (3PSC) current in dual three-phase surface-mounted permanent magnet (DTPSPM) machines.
Yidong Du +5 more
semanticscholar +1 more source
IEEE Transactions on Transportation Electrification, 2021
This article investigates postdemagnetization unbalanced magnetic force (UMF) in single-three-phase permanent magnet (STPPM) and dual-three-phase PM (DTPPM) machines considering three-phase short circuit (3PSC).
Yidong Du +4 more
semanticscholar +1 more source
This article investigates postdemagnetization unbalanced magnetic force (UMF) in single-three-phase permanent magnet (STPPM) and dual-three-phase PM (DTPPM) machines considering three-phase short circuit (3PSC).
Yidong Du +4 more
semanticscholar +1 more source
2016 IEEE International Energy Conference (ENERGYCON), 2016
Phase-to-phase short-circuit faults in a permanent-magnet synchronous machines are quite dangerous because of the extremely high short-circuit transient current after fault. This paper presents a fault detection and identification diagnosis approach for asymmetrical faults in permanent-magnet synchronous machines, considering both inter-turn and phase ...
null Yuxue Ge +3 more
openaire +1 more source
Phase-to-phase short-circuit faults in a permanent-magnet synchronous machines are quite dangerous because of the extremely high short-circuit transient current after fault. This paper presents a fault detection and identification diagnosis approach for asymmetrical faults in permanent-magnet synchronous machines, considering both inter-turn and phase ...
null Yuxue Ge +3 more
openaire +1 more source