Results 21 to 30 of about 11,639,860 (350)
Energies, 2018 This paper presents a procedure to estimate the impacts on voltage harmonic distortion at a point of interest due to multiple nonlinear loads in the electrical network.
Allan Manito +5 more
doaj +1 more source
Non-sinusoidal current and current reversals in a gating ratchet [PDF]
, 2015 In this work, the ratchet dynamics of Brownian particles driven by an external sinusoidal (harmonic) force is investigated. The gating ratchet effect is observed when another harmonic is used to modulate the spatially symmetric potential in which the ...
Dinis, Luis, Quintero, Niurka R.
core +4 more sources
Circuit Structure and Control Method to Reduce Size and Harmonic Distortion of Interleaved Dual Buck Inverter [PDF]
, 2020 A new circuit structure and control method for a high power interleaved dual-buck inverter are proposed. The proposed inverter consists of six switches, four diodes and two inductors, uses a dual-buck structure to eliminate zero-cross distortion, and ...
Cho, Min-Gi +4 more
core +1 more source
IEEE Access, 2023 The paper reports an experimental non-linear load evaluation regarding current harmonics sensitivity to supply voltage harmonics. A base for the model is proposed relying on the time-domain waveform variations, rather than impedance or conductance ...
Kamran Daniel +5 more
doaj +1 more source
World Electric Vehicle Journal, 2022 In order to solve the problem that the three-phase current of the interior permanent magnet synchronous motor (IPMSM) contains the 11th and 13th current harmonics, a multiple synchronous rotating frame transformation (MSRFT)-based current harmonic ...
Yamei Xu +5 more
doaj +1 more source
Directed harmonic currents near hyperbolic singularities [PDF]
Ergodic Theory and Dynamical Systems, 2017 Let $\mathscr{F}$ be a holomorphic foliation by curves defined in a neighborhood of $0$ in $\mathbb{C}^{2}$ having $0$ as a hyperbolic singularity. Let $T$ be a harmonic current directed by $\mathscr{F}$ which does not give mass to any of the two separatrices. We show that the Lelong number of $T$ at $0$ vanishes.
openaire +2 more sources
Design of a mine-used switching power supply
Gong-kuang zidonghua, 2018 For problems of existing mine-used switching power supply such as large harmonic current, low power factor and so on, a mine-used switching power supply was designed by use of technologies of active power factor correction and resonant soft switching ...
LIN Yin
doaj +1 more source
IEEE Access, 2020 Due to the power-grid low-order harmonic voltage and the nonlinearity of power electronic devices, the grid-connected converter of wind power generation system produces grid-connected harmonic current. In order to improve the output power quality of full-
Zhaoyan Zhang, Peiguang Wang
doaj +1 more source
Optimal design of a new step-down 18-pulse autotransformer
工程科学学报, 2017 Aiming at the requirement for voltage regulation with a 18-pulse autotransformer-rectifier, a novel step-down 18-pulse topology was designed and optimized based on the advantage of present topologies.
NIU Lan +3 more
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Improved Deadbeat Predictive Control Based Current Harmonic Suppression Strategy for IPMSM
Energies, 2022 When the interior permanent magnet synchronous motor (IPMSM) is running, there are abundant harmonics in the stator current. In order to achieve the suppression of current harmonics, the current harmonic extraction method and current harmonic controller ...
Xin Gu, Yiyang Li, Wei Chen, Xuefeng Jin
doaj +1 more source