Results 21 to 30 of about 1,722,896 (320)

Control Strategies for Open-End Winding Drives Operating in the Flux-Weakening Region [PDF]

open access: yes, 2013
This paper presents and compares control strategies for three-phase open-end winding drives operating in the flux-weakening region. A six-leg inverter with a single dc-link is associated with the machine in order to use a single energy source.
BRUYERE, Antoine   +4 more
core   +5 more sources

Influence of grid configuration on current conducting behaviour in PV installations [PDF]

open access: yes, 2011
On the roof of an industrial site a 385 kWp PhotoVoltaic installation is operational. When production of this system reaches 60% of the installed power, the circuit breaker trips.
Debruyne, Colin   +3 more
core   +2 more sources

Analysis on Circulating Current and Split Capacitor Voltage Balance for Modular Multilevel Converter Based Three-phase Four-wire Split Capacitor DSTATCOM

open access: yesJournal of Modern Power Systems and Clean Energy, 2021
We propose a modular multilevel converter (MMC) based three-phase four-wire (3P4W) split capacitor distribution static synchronous compensator (DSTATCOM), aiming at compensating unbalanced and reactive load currents.
Lei Lin, Jialu He, Chen Xu
doaj   +1 more source

Modeling, design, and experimental test of a zero‐sequence current electromagnetic suppressor [PDF]

open access: yesInternational Transactions on Electrical Energy Systems, 2020
This work has been supported by CNPq ‐ National Council for Scientific and Technological Development, by CAPES ‐ Coordinationfor the Improvement of Higher Education Personnel through the PDSE ‐ Doctoral Program Sandwich Abroad 7427‐12‐3, and by FCT ‐ Foundation for Science and Technology within the Project Scope: UID/CEC/00319/2019 and FCT within ...
Stefani Carolline Leal Freitas   +5 more
openaire   +4 more sources

Torque capability enhancement of dual three-phase PMSM drive with fifth and seventh current harmonics injection [PDF]

open access: yes, 2017
© 2017 IEEE. A method for enhancing torque capability of a dual three-phase permanent magnet synchronous machine (PMSM) based on conventional dual three-phase drive system by injecting the fifth and seventh current harmonics without any hardware re ...
Hu, Y., Odavic, M., Zhu, Z.Q.
core   +1 more source

IGBT-SiC dual fed open end winding PMSM drive [PDF]

open access: yes, 2017
This paper proposes a dual fed common dc link inverter Open End Winding-Permanent Magnet Synchronous Motor (OEW-PMSM) Drive. In order to increase the system efficiency a dual technology converter is used, with one inverter composed of standard IGBT ...
Cox, Tom   +4 more
core   +1 more source

Non-Directional Earth Fault Passage Indication in Isolated Neutral Distribution Networks

open access: yesEnergies, 2020
In this paper, two new methods for locating single-phase to ground faults in isolated neutral distribution networks are proposed. The methods are based on the analysis of symmetrical sequence currents.
Amir Farughian   +2 more
doaj   +1 more source

Comparison of Finite-Element-Based State-Space Models for PM Synchronous Machines [PDF]

open access: yes, 2014
An interior-permanent-magnet motor is modeled by a combined analytical-numerical approach, in which the relationships between the stator currents and flux linkages are identified with static finite-element (FE) analysis.
Arkkio, Antero   +4 more
core   +1 more source

A line selection method of mine leakage protectio

open access: yesGong-kuang zidonghua, 2020
Aiming at problem of low accuracy of line selection when single-phase grounding fault occurs in mine power supply system at present, according to characteristics of obvious difference of zero-sequence current waveform between fault line and non-fault ...
YU Qun, SHANG Xueli
doaj   +1 more source

Underground power supply system grounding fault section positioning method based on wide-area current transient component

open access: yesGong-kuang zidonghua, 2022
At present, most of the research on underground power supply system grounding fault positioning in coal mine adopts the transient method, which needs to collect zero sequence voltage and zero sequence current of the line at the same time.
OUYANG Min   +10 more
doaj   +1 more source

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