Results 21 to 30 of about 5,298,675 (236)

High Frequency Resonance Suppression Strategy of Three-Phase Four-Wire Split Capacitor Inverter Connected to Parallel Compensation Grid

open access: yesEnergies, 2022
With the continuous penetration and development of renewable energy power generation, the distributed grid and the microgrid are becoming increasingly important in modern power systems.
Guoli Feng   +5 more
doaj   +1 more source

An Optimized Carrier Phase-Shifted Modulation Strategy for Cuk PV Inverter

open access: yesIEEE Access, 2023
There exists the problems of output voltage zero-point drift and high even harmonic content of the three-phase Cuk liftable voltage photovoltaic (PV) inverter when it adopts the conventional carrier modulation method.
Renxi Gong, Cheng Zhao
doaj   +1 more source

Early slight inter-turn short circuit fault diagnosis of axial flux stator coreless permanent magnet motor based on phase difference [PDF]

open access: yesJournal of Hebei University of Science and Technology
Aiming at the problem of early inter-turn short circuit fault of axial flux stator coreless motor, a method for early inter-turn short circuit fault diagnosis and positioning of axial flux stator coreless motor based on the phase difference of zero ...
Xiaoguang WANG   +4 more
doaj   +1 more source

An individual sequencing control strategy for three-phase four-leg inverter under unbalanced loads

open access: yesEnergy Reports, 2023
Under the influence of the unbalanced load, the negative and zero sequence components in the output voltage of the three-phase four-leg voltage source inverter(TPFL-VSI) will cause asymmetry voltage.
Hanzhou Jiang, Huan Pan, Bin Shang
doaj   +1 more source

Sequence Subsums in Zero-Sum Theory

open access: yes, 2021
The last few years have seen the development and improvement of structural results in the area of sequence subsums over abelian groups. These results often have the flavor that either many elements can be represented as a sum of terms from  a ...
Grynkiewicz, David
core   +1 more source

Zero-Sequence Current Reduction Technique for Electrical Machine Emulators With DC Coupling by Regulating the SVM Zero States

open access: yes, 2022
In this article, a new zero-sequence current suppression technique for electrical machine emulators with reduced component count is proposed. The proposed control scheme is implemented by properly regulating the zero states in space vector modulation ...
Liu, Yujing,   +11 more
core   +1 more source

A new leakage protection method for mine power network

open access: yesGong-kuang zidonghua, 2016
A new leakage protection method was proposed which was based on least-square matrix algorithm. In the method, zero sequence current signal of each brance is extracted on the basis of additional DC source system, and DC component of the zero sequence ...
ZHAO Jianwen   +6 more
doaj   +1 more source

Automated signature generation for Zero-day polymorphic worms using a Double-honeynet [PDF]

open access: yes, 2012
Includes bibliographical references.This thesis proposes an accurate system for signature generation for Zero-day polymorphic worms. Thesis consists of two parts: In part one, polymorphic worm instances are collected by designing a novel Double-honeynet ...
Mohammed, Mohssen M Z E
core   +1 more source

Optimization research on carrier phase-shifting modulation method of cascade multi-level inverter

open access: yesGong-kuang zidonghua, 2014
The traditional carrier phase-shifting modulation method of cascade high-voltage inverter has the problems of large switching loss and low utilization rate of DC voltage, and modulation method based on combination of carrier phase-shifting and vector ...
ZHENG Zheng, YAN Fei, ZOU Jin
doaj   +1 more source

Retrospective Analysis of Donor Lymphocyte Infusions in Pediatric Patients With Mixed Chimerism After Hematopoietic Stem Cell Transplantation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is an essential therapy for several malignant and nonmalignant diseases, but relapse and graft loss remain the principal threats to its success. Routine monitoring of chimerism and minimal residual disease (MRD) enables early detection of imminent recurrence and guides ...
Carmen Junk   +10 more
wiley   +1 more source

Home - About - Disclaimer - Privacy