Results 21 to 30 of about 1,345,661 (295)
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
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
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
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Chromatic Zeros On Hierarchical Lattices and Equidistribution on Parameter Space [PDF]
, 2021 Associated to any finite simple graph $\Gamma$ is the chromatic polynomial $P_\Gamma(q)$ whose complex zeroes are called the chromatic zeros of $\Gamma$.
Chio, Ivan, Roeder, Roland
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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
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
Tripping of circuit breakers in PV installations due to zero sequence field impedance [PDF]
, 2011 On the roof of a wool processing company a 385 kWp PV installation is installed. When production of the installation is more than 60% of the rated power the circuit breaker trips.
Debruyne, Colin +3 more
core +2 more sources
The theory of instantaneous power in three-phase four-wire systems: a comprehensive approach [PDF]
, 1999 This paper describes a holistic approach to the theory of instantaneous power in three-phase four-wire systems, focusing on the original theory created in 1983 and a modified theory presented in 1994.
Akagi, Hirofumi +2 more
core +1 more source
Zero-sequence current suppression control for fault current damper based on model predictive control
Electric Power Systems Research, 2023 Electrical Sustainable ...
Ajay Shetgaonkar +3 more
openaire +3 more sources