Results 11 to 20 of about 93,145 (342)
Harmonic current suppression method of virtual DC motor based on fuzzy sliding mode
Open Physics, 2023 In the operation of power grid, the low frequency subharmonics in power lines are easy to cause harmonic current problems. A harmonic current suppression method is constructed based on fuzzy sliding mode and virtual DC motor (VDC).
Shang Lisha +3 more
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Evaluation of harmonic suppression devices [PDF]
IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting, 2002 An assessment has been conducted of five commercially available devices to determine their ability to provide clean sinusoidal voltage to nonlinear loads and to eliminate harmonic current demanded by nonlinear loads. The devices tested were a passive series-shunt filter, a delta-wye isolation transformer, a ferroresonant magnetic synthesizer, an active
Tolbert, L.M. +2 more
openaire +1 more source
Fast-individual-harmonic-extraction technique [PDF]
, 2005 One outcome of a PhD project (C H Ng, University studentship) A collaborative work (the Energy Systems Group, Northumbria and Durham University). It deals with the problem of harmonic suppression or elimination in power systems for safety and power ...
Busawon, Krishna +3 more
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Novel Fractional-Order Repetitive Controller Based on Thiran IIR Filter for Grid-Connected Inverters
IEEE Access, 2022 The proportional-integral multi-resonance repetitive controller (PIMR-RC) can track the reference current signal of the grid-connected inverter without static error, suppress low-frequency harmonic disturbance signals, and have a fast dynamic response ...
Qiangsong Zhao +4 more
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Harmonic operation of a free-electron laser [PDF]
, 1991 Harmonic operation of a free-electron-laser amplifier is studied. The key issue investigated here is suppression of the fundamental. For a tapered amplifier with the right choice of parameters, it is found that the presence of the harmonic mode greatly ...
Antonsen, T +3 more
core +1 more source
An Inductive Active Filtering Method for Low-Voltage Distribution Networks
Machines, 2021 Three-phase unbalanced and nonlinear loads aggravate harmonic problems in low-voltage distribution networks. In this paper, a hybrid inductive and active filter (HIAF) system with a Ddy converter transformer is proposed.
Delu Li +3 more
doaj +1 more source
Optimal Modeled Six-Phase Space Vector Pulse Width Modulation Method for Stator Voltage Harmonic Suppression [PDF]
, 2018 Dual Y shift 30 six-phase motors are expected to be extensively applied in high-power yet energy-effective fields, and a harmonic-suppressing control strategy plays a vital role in extending their prominent features of low losses and ultra-quiet ...
Luo, Qiwu +3 more
core +2 more sources
A New Generalized Harmonic Evolution System [PDF]
, 2006 A new representation of the Einstein evolution equations is presented that is first order, linearly degenerate, and symmetric hyperbolic. This new system uses the generalized harmonic method to specify the coordinates, and exponentially suppresses all ...
Kidder, Lawrence E. +4 more
core +4 more sources
Novel Compact CPW-Fed Antennas with Harmonic Suppression and Bandwidth Enhancement
International Journal of Antennas and Propagation, 2012 Novel compact CPW-fed antennas with harmonic suppression are presented and investigated in detail. By inserting symmetrical slots connected to the end of CPW transmission line in the ground plane, and exploiting parasitic technique, harmonic suppression,
Zhi-Li Zhou, Li Li, Jing-Song Hong
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A Transplantable Frequency Selective Metasurface for High-Order Harmonic Suppression
Applied Sciences, 2017 A transplantable frequency selective metasurface element (FSMSE) for high-order harmonic suppression (HS) is presented in this paper. The proposed harmonic free FSMSE can be integrated with arbitrary frequency selective surfaces (FSSs) operating at the ...
Na Kou, Haixia Liu, Long Li
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