Results 11 to 20 of about 428,164 (266)

Active Filtering of Inverter Output Waveforms Based on Orthogonal Space Vector Theory

open access: yesEnergies, 2022
This paper presents a DC/AC converter consisting of two two-level inverters. The complex converter is built using two standard three-phase inverters: the main inverter (MI) and the auxiliary one (AI).
Adam Muc, Jan Iwaszkiewicz
doaj   +1 more source

A Study on Common Mode Voltage Reduction Strategies According to Modulation Methods in Modular Multilevel Converter

open access: yesEnergies, 2021
Low level modular multilevel converter (MMC) is a promising candidate for medium voltage applications such as MVDC (medium voltage DC current) transmission and megawatt machine drives.
Chang-Hwan Park   +4 more
doaj   +1 more source

Hyperspaces of topological vector spaces: their embedding in topological vector spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1976
Let L L be a real (Hausdorff) topological vector space. The space
Prem Prakash, Murat R. Sertel
openaire   +3 more sources

Space vector representation of induction motor model in field weakening regime [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2012
In this paper a space vector model of an induction motor in a field weakening regime is detailed. Stator and rotor flux space vector trajectories are shown in a complex plane for the case when the machine is supplied by limited voltage.
Matić Petar   +2 more
doaj   +1 more source

Assessment of Efficiency and Reliability of Wide Band-Gap Based H8 Inverter in Electric Vehicle Applications

open access: yesEnergies, 2019
This paper analyzes the performance of a three-phase converter architecture with a reduced common mode voltage to be used in electric motor drives. Starting from the classical three-phase bridge architecture, two additional switches are inserted in the ...
Luca Concari   +7 more
doaj   +1 more source

On Characterization of δ-Topological Vector Space

open access: yesRatio Mathematica, 2021
The main objective of this paper is to present the study of δ-topological vector space, δ-topological vector space are defined by using δ-open sets and δ-continuous mapping which was introduced by J.H.H. Bayati[3] in 2019. In this paper, along with basic
Shallu Sharma   +2 more
doaj   +1 more source

On the learnability of vector spaces

open access: yesJournal of Computer and System Sciences, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Valentina S. Harizanov   +1 more
openaire   +2 more sources

Study on a new kind of control method of single-phase rectifiers

open access: yesDianzi Jishu Yingyong, 2018
According to these drawbacks of traditional direct power control(DPC) in single-phase PWM rectifiers such as slow dynamic response,poor anti-interference ability and variable switching frequency, an algorithm based on outer loop adopting the feedback of ...
Hu Xiaoxue   +5 more
doaj   +1 more source

Enhanced Performance Modified Discontinuous PWM Technique for Three-Phase Z-Source Inverter

open access: yesEnergies, 2020
Various industrial applications require a voltage conversion stage from DC to AC. Among them, commercial renewable energy systems (RES) need a voltage buck and/or boost stage for islanded/grid connected operation.
Ahmed A. Hossameldin   +3 more
doaj   +1 more source

MADNESS IN VECTOR SPACES [PDF]

open access: yesThe Journal of Symbolic Logic, 2019
AbstractWe consider maximal almost disjoint families of block subspaces of countable vector spaces, focusing on questions of their size and definability. We prove that the minimum infinite cardinality of such a family cannot be decided in ZFC and that the “spectrum” of cardinalities of mad families of subspaces can be made arbitrarily large, in analogy
openaire   +2 more sources

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