Results 41 to 50 of about 104,044 (167)

Simulation Study on the Electric Field of Three-Phase Three-Post Insulators Under Typical Defects

open access: yesEnergies
In three-phase three-post insulators, air gaps and crack defects are important sources of partial discharge and surface flashover. Using finite element analysis software, this study created a three-dimensional simulation model to investigate the effect ...
Zhuoran Yang   +6 more
doaj   +1 more source

Quantifying structural distortion manipulation for desired perovskite phase: Part II. Three-step workflow to reveal phase evolution logic

open access: yesJournal of Materiomics
Distortion manipulation emerges as an efficient approach to obtain desired perovskite phases for various applications. In part I of this study, we propose a paradigm to quantify the structural distortion manipulation, which enables us to obtain desired ...
Cheng Fang, Hong Wang, Siqi Shi
doaj   +1 more source

Optimal Control for Vienna Rectifier in Unbalanced Conditions

open access: yesTransactions of Nanjing University of Aeronautics and Astronautics
The Vienna rectifier is a widely adopted solution for high-power rectification due to its efficiency and straightforward design. However, its performance can degrade under unbalanced three-phase voltage conditions, leading to current zero-crossing ...
LIU Chengzi   +3 more
doaj   +1 more source

Design of mine-used single-phase harmonic suppression system

open access: yesGong-kuang zidonghua, 2016
In view of problem of severe distortion of local current wave caused by increase of low-voltage single-phase electrical equipment, a kind of single-phase harmonic suppression system used in low-voltage system was designed.
LUO Shuke
doaj   +1 more source

An innovative 11-level multilevel inverter topology with rotating trapezoidal SPWM for industrial and renewable applications

open access: yesScientific Reports
This paper provides a new, less complex multilevel inverter topology that can be used for industrial loads and renewable energy sources. The arrangement consists of eight switches to produce an 11-level output voltage with two uneven input sources ...
Shaik. Shakeera, K. Rachananjali
doaj   +1 more source

Lattice Distortion and Phase Stability of Pd-Doped NiCoFeCr Solid-Solution Alloys

open access: yesEntropy, 2018
In the present study, we have revealed that (NiCoFeCr)100−xPdx (x= 1, 3, 5, 20 atom%) high-entropy alloys (HEAs) have both local- and long-range lattice distortions by utilizing X-ray total scattering, X-ray diffraction, and extended X-ray ...
Fuxiang Zhang   +5 more
doaj   +1 more source

Quantifying structural distortion manipulation for desired perovskite phase: Part I. Paradigm demonstration in tungsten oxides

open access: yesJournal of Materiomics
Slight distortions can cause dramatic changes in the properties of crystalline perovskite materials and their derivatives. Due to the numerous types of distortions and unclarified distortion-structure relations, a quantitative distortion manipulation for
Cheng Fang, Hong Wang, Siqi Shi
doaj   +1 more source

Adaptive Phase Distortion Synthesis

open access: yes, 2009
This article discusses Phase Distortion synthesis and its application to arbitrary input signals. The main elements that compose the technique are presented. Its similarities to Phase Modulation are discussed and the equivalence between the two techniques is explored. Two alternative methods of distorting the phase of an arbitrary signal are presented.
Lazzarini, Victor   +3 more
openaire   +1 more source

High-Stability PGC-EKF Demodulation Algorithm Integrated with a Phase Delay Compensation Module

open access: yesPhotonics
To effectively eliminate the nonlinear distortion caused by the modulation depth (C value) drift and carrier phase delay (θ) in the phase-generated carrier (PGC) demodulation scheme, the PGC-PDC-EKF joint algorithm is presented, which combines phase ...
Hengyang Zhao   +4 more
doaj   +1 more source

CONTROL TECHNIQUES FOR VARIOUS BIPOLAR PWM STRATEGIES OF THREE PHASE FIVE LEVEL CASCADED INVERTER [PDF]

open access: yesJournal of Engineering Science and Technology, 2015
This paper presents different types of bipolar Pulse Width Modulation (PWM) strategies for the chosen Cascaded MultiLevel Inverter (CMLI). The main purpose of MLI is to use power semiconductor devices of lower voltage ratings to realize high voltage ...
C. R. BALAMURUGAN   +2 more
doaj  

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