Results 21 to 30 of about 425,748 (301)
Control Strategies for Open-End Winding Drives Operating in the Flux-Weakening Region [PDF]
, 2013 This paper presents and compares control strategies for three-phase open-end winding drives operating in the flux-weakening region. A six-leg inverter with a single dc-link is associated with the machine in order to use a single energy source.
KESTELYN, Xavier +4 more
core +1 more source
On weighted zero-sum sequences
Advances in Applied Mathematics, 2012 24 pages. Accepted version for publication in Adv.
Sukumar Das Adhikari +2 more
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Zeros of recurrence sequences [PDF]
Bulletin of the Australian Mathematical Society, 1991 We give an upper bound for the number of zeros of recurrence sequences defined over an algebraic number field in terms of their order, the degree of their field of definition and the number of prime ideal divisors of the characteristic roots of the sequence.
van der Poorten, A. J. +1 more
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Electrical engineering & Electromechanics, 2017 Purpose. Information technologies allow multidimensional analysis of information about the state of the power system in a single information space in terms of providing network-centric approach to control and use of unmanned aerial vehicles as tools for ...
Ye. I. Sokol +5 more
doaj +1 more source
On the zeros of a special sequence of polynomials [PDF]
Mathematics of Computation, 1982 The zeros of the polynomials P n
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Energies, 2021 We developed an International Electrotechnical Commission (IEC) 61850-based centralized protection scheme to prevent single line-to-ground (SLG) faults in the feeders and busbars of ungrounded distribution systems.
Soon-Ryul Nam +4 more
doaj +1 more source
Linear recurrence sequences without zeros [PDF]
Czechoslovak Mathematical Journal, 2014 There are two main results in the paper. In order to quote them we recall the following. Given a positive integer \(d\) and \(2d\) fixed integers \(a_0,\dots ,a_{d-1}\) and \(x_0,\dots ,x_{d-1}\) with nonzero \(a_0\); a linear recurrent sequence \((x_n)\) of order \(d\) is defined by these data if \[ x_{n+d}=\sum_{j=0}^{d-1}a_jx_{n+j} \] for all ...
Dubickas, Artūras, Novikas, Aivaras
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Вестник Северо-Кавказского федерального университета, 2022 The article presents a technique for assessment the level of consumers’ impact on the voltage asymmetry by the zero sequence at the point of common connection. The results of a computational experiment that determine the possibility of using the level of
Dmitrii Kostyukov
doaj
Design of a mine-used low-voltage leakage protection device
Gong-kuang zidonghua, 2020 In view of low reliability of leakage protection device of coal mine low-voltage power grid based on line selection principle of zero-sequence power direction, a hardware and software design scheme of mine-used low-voltage leakage protection device was ...
ZHENG Qingle +3 more
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Pattern Frequency Sequences and Internal Zeros
Advances in Applied Mathematics, 2002 Consider the number of permutations in the symmetric group on n letters that contain c copies of a given pattern. As c varies (with n held fixed) these numbers form a sequence whose properties we study for the monotone patterns and the patterns 1, l, l-1, ..., 2. We show that, except for the patterns 1, 2 and 2, 1 where the sequence is well-known to be
Department of Mathematics, University of Florida, Gainesville, Florida, f1bona@math.ufl.eduf1 ( host institution ) +3 more
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