Results 21 to 30 of about 4,140,882 (287)

Closed Form Solution of Synchronous Machine Short Circuit Transients [PDF]

, 2010
This paper presents the closed form solution of the synchronous machine transients undergoing short circuit. That analytic formulation has been derived based on linearity and balanced conditions of the fault.
Gibson H.M. Sianipar
core   +1 more source

Pronounced Photovoltaic Response from Multi-layered MoTe2 Phototransistor with Asymmetric Contact Form

Nanoscale Research Letters, 2017
In this study, we fabricate air-stable p-type multi-layered MoTe2 phototransistor using Au as electrodes, which shows pronounced photovoltaic response in off-state with asymmetric contact form.
Junku Liu, Nan Guo, Xiaoyang Xiao, Kenan Zhang, Yi Jia, Shuyun Zhou, Yang Wu, Qunqing Li, Lin Xiao   +8 more
doaj   +1 more source

Observer-Based Active Fault-Tolerant Control of an Asymmetric Twin Wind Turbine

Information, 2022
This paper deals with the design of an active fault-tolerant control based on observers for a twin wind turbine, consisting of two wind turbines mounted on the same tower. We consider an asymmetric conditions case, when only one turbine is affected by an
Mariem Makni, Ihab Haidar, Jean-Pierre Barbot, Franck Plestan, Nabih Feki, Mohamed Slim Abbes   +5 more
doaj   +1 more source

Fault-Tolerant Operation of an Open-End Winding Five-Phase PMSM Drive with Inverter Faults [PDF]

, 2013
The authors would like to thank the ADEME for the funding of the MHYGALE project.Multi-phase machines are known for their fault-tolerant capability. However, star-connected machines have no fault tolerance to inverter switch short-circuit fault.
NGUYEN, Ngac Ky, Ngac-Ky Nguyen, KESTELYN, Xavier, SEMAIL, Eric, Paul Sandulescu, Eric Semail, Nguyen, Ngac-Ky, SANDULESCU, Paul, MEINGUET, Fabien, Fabien Meinguet, Xavier Kestelyn   +10 more
core   +1 more source

IPM Synchronous Machine Drive Response to Symmetrical and Asynunetrical Short Circuit Faults [PDF]

IEEE Power Engineering Review, 2002
A closed-form solution is presented for the steady-state response of interior permanent magnet (IPM) synchronous machines to symmetrical short circuits including the effects of q-axis magnetic saturation. Machine response to single-phase asymmetrical short circuits is also investigated.
Welchko, B., Jahns, T., Soong, W., Nagashima, J.   +3 more
openaire   +2 more sources

Research on the Short-Circuit Characteristics of Trench-Type SiC Power MOSFETs Under Single and Repetitive Pulse Strikes

Micromachines
This paper investigates the short-circuit characteristics of 1.2 kV symmetrical and asymmetrical trench-gate SiC MOSFETs. Based on the self-designed short-circuit test platform, single and repetitive short-circuit tests were carried out to characterize ...
Li Liu, Bo Pang, Siqiao Li, Yulu Zhen, Gangpeng Li   +4 more
doaj   +1 more source

Evaluation of Weakening Effect of Stator Parallel Branch Circuit on Main Field Asymmetry

Zhongguo dianli
The short circuit between turns of the rotor winding is a weak characteristic electrical fault of the turbine generator, which makes the fault detection difficult.
Bingbing CHEN, Yucai WU, Xuan JI, Xinkai ZHU   +3 more
doaj   +1 more source

Dynamic Equivalence Modeling of Short-Circuit Faults in Wind Farms Considering Wake Effects

Shanghai Jiaotong Daxue xuebao
Fast and accurate analysis of the short-circuit characteristics of large wind farms has important engineering application value, and the short-circuit characteristics of wind farms under the influence of the wake effect vary greatly.
YU Hao, LI Canbing, YE Zhiliang, PENG Sui, REN Wanxin, CHEN Sijie, TANG Binwei, CHEN Dawei
doaj   +1 more source

Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals

Advanced Engineering Materials, EarlyView.
This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao, Sriram Subramanian, Gianluca Memoli   +2 more
wiley   +1 more source

Short-circuit test.

, 2018
This is the schematic of short-circuit test.
Lele Yao (5873825), Lingling Liu (117880), Donghui Li (94039)   +2 more
core   +1 more source