Results 21 to 30 of about 1,353,401 (296)
FPGA Implementation of a General Space Vector Approach on a 6-Leg Voltage Source Inverter [PDF]
, 2011 A general algorithm of a Space Vector approach is implemented on a 6-leg VSI controlling a PM synchronous machine with three independent phases. In this last case, the necessity of controlling the zero-sequence current motivates the choice of a special ...
BRUYERE, Antoine +6 more
core +6 more sources
Comparison of Finite-Element-Based State-Space Models for PM Synchronous Machines [PDF]
, 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
Non-Directional Earth Fault Passage Indication in Isolated Neutral Distribution Networks
Energies, 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
Gong-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
Torque capability enhancement of dual three-phase PMSM drive with fifth and seventh current harmonics injection [PDF]
, 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
Journal of Modern Power Systems and Clean Energy, 2019 To explore the clustered voltage balancing mechanism of the cascaded H-bridge static synchronous compensator (STATCOM), this paper analyzes the causes of unbalanced clustered voltage. The negative-sequence current caused by the compensation of unbalanced
Yu Jin +4 more
doaj +1 more source
A line selection method of mine leakage protectio
Gong-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
The Novel SLIM Method for the Determination of the Iron Core Saturation Level in Induction Motors [PDF]
, 2017 Lately, a new diagnostic mean has been introduced for reliable fault diagnosis in delta-connected induction motors.This diagnostic mean is the zero-sequence current frequency spectrum.
Gyftakis, Kostas
core +1 more source
IGBT-SiC dual fed open end winding PMSM drive [PDF]
, 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
Investigation of negative sequence injection capability in H-bridge multilevel STATCOM [PDF]
, 2014 The aim of this paper is to investigate the ability of star- and delta-connected H-bridge multilevel STATCOMs to exchange negative-sequence current with the grid. Zero-sequence injection is utilized for capacitor voltage balancing.
Behrouzian, Ehsan +2 more
core +1 more source