Results 11 to 20 of about 201,576 (288)
Modular Locally Constant Mappings in Vector Ultrametric Spaces [PDF]
Abstract and Applied Analysis, 2011 We give some sufficient conditions for mappings defined on vector ultrametric spaces to be modular locally constant.
Fallahi, Kamal, Nourouzi, Kourosh
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A Space Vector Based Zero Common-Mode Voltage Modulation Method for a Modular Multilevel Converter
World Electric Vehicle Journal, 2023 A modular multilevel converter (MMC) can generate different common-mode voltage (CMV) values due to the high-frequency changing of the switching state under various modulation strategies.
Guozheng Zhang +4 more
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Computing well-covered vector spaces of graphs using modular decomposition
Computational and Applied Mathematics, 2023 AbstractA graph is well-covered if all its maximal independent sets have the same cardinality. This concept was introduced by Plummer in 1970 and naturally generalizes to the weighted case. Given a graph G, a real-valued vertex weight function w is said to be a well-covered weighting of G if all its maximal independent sets are of the same weight with ...
Martin Milanič, Nevena Pivač
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Smooth Compactifications of the Abel-Jacobi Section
Forum of Mathematics, Sigma, 2023 For $\theta $ a small generic universal stability condition of degree $0$ and A a vector of integers adding up to $-k(2g-2+n)$ , the spaces $\overline {\mathcal {M}}_{g,A}^\theta $ constructed in [AP21, HMP+22] are observed to ...
Sam Molcho
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Space vector modulation method for modular multilevel converters [PDF]
IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014 This paper presents a generalized space vector modulation (SVM) method for any modular multilevel converter (MMC). The proposed SVM method produces the maximum level number (i.e., 2«+l, where n is the number of submodules in the upper or lower arm of each phase) of the output phase voltages and a higher equivalent switching frequency than other ...
Yi Deng +3 more
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On common fixed points in modular vector spaces [PDF]
Fixed Point Theory and Applications, 2015 AbstractIn this work, we discuss the concept of Banach operator pairs in modular vector spaces. We prove the existence of common fixed points for these type of operators which satisfy a modular continuity in modular compact sets. On the basis of our result, we are able to give an analog of DeMarr’s common fixed point theorem for a family of symmetric ...
Abdou, Afrah AN, Khamsi, Mohamed A
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Modular space‐vector pulse‐width modulation for nine‐switch converters [PDF]
IET Power Electronics, 2013 Recently, nine‐switch inverter (NSI) has been presented as a dual‐output inverter with constant frequency (CF) or different frequency (DF) operation modes. However, the CF mode is more interesting because of its lower switching device rating. This study proposes a new space‐vector modulation (SVM) method for the NSI that supports both the CF and DF ...
Dehghan, Seyed Mohammad +3 more
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Research on Simplified SVPWM for Multilevel MMC-SVG
Zhejiang dianli, 2022 SVPWM （space vector pulse width modulation） is difficult to be applied to MMC （modular multilevel converter） control， the paper proposes an SVPWM applicable to arbitrary MMC.
TAN Fenglei, ZHU Chao, DENG Kai
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Orthogonality and complementation in the lattice of subspaces of a finite vector space [PDF]
Mathematica Bohemica, 2022 We investigate the lattice $ L( V)$ of subspaces of an $m$-dimensional vector space $ V$ over a finite field ${\rm GF}(q)$ with a prime power $q=p^n$ together with the unary operation of orthogonality.
Ivan Chajda, Helmut Länger
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Hybrid Modulation for Modular Voltage Source Inverters with Coupled Reactors
Energies, 2020 This paper proposes and discusses a concept of a hybrid modulation for the control of modular voltage source inverters with coupled reactors. The use of coupled reactors as the integrating elements leads to significant reduction in the size and weight of
Krzysztof Jakub Szwarc +5 more
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