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Duality, Vector Spaces and Absolutely Convex Modules
Applied Categorical Structures, 2006An interpretation of absolutely convex modules subject to a separatedness condition as the numerical counterpart of vector spaces is given. It is shown that the full reflective embedding \({\mathcal V}ec \to {\mathcal{AC}}\) is at the same time coreflective, too.
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1987
Let K be a field. A vector space V over the field K is an additive (abelian) group, together with a multiplication of elements of V by elements of K, i.e. an association $$ \left( {x,v} \right) \mapsto xv $$ of K × V into V, satisfying the following conditions: VS 1. If 1 is the unit element of K, then 1 υ = υ for all υ ∈ V. VS 2.
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Let K be a field. A vector space V over the field K is an additive (abelian) group, together with a multiplication of elements of V by elements of K, i.e. an association $$ \left( {x,v} \right) \mapsto xv $$ of K × V into V, satisfying the following conditions: VS 1. If 1 is the unit element of K, then 1 υ = υ for all υ ∈ V. VS 2.
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Discrete Space Vector Modulation Applied on a PMSM Motor
2006 12th International Power Electronics and Motion Control Conference, 2006The Permanent Magnet Synchronous Motors (PMSM) are extensively used in high-performance industrial applications. The electromagnetic torque in a PMSM is proportional to the angle between the stator and rotor flux linkages. Therefore, high dynamic response can be achieved by means of Direct Torque Control (DTC).
David Ocen +4 more
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Space Vector Modulation for Multiphase Inverters Based on a Space Partitioning Algorithm
IEEE Transactions on Industrial Electronics, 2009Since the late 1990s, multiphase drives have become a serious alternative to three-phase drives in some particular applications such as electric ship propulsion, locomotive traction, electric vehicles, and high-power industrial applications. Nowadays, the research activity is focused on the development of control strategies that can exploit the degrees
A. Lega +4 more
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The Research of Matrix Converter Space Vector Modulation
2012For the problems of matrix converter in practical application, firstly this paper analyzes the working principle of matrix converter and the space vector modulation control strategy, then uses matlab/simulink to model and simulate for matrix converter, analyze the key problems of space vector modulation control strategy between the simulation: the ...
Zhuo Xu +3 more
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Linearization of Over-Modulation in Dodecagonal Space Vector PWM
2019 IEEE 28th International Symposium on Industrial Electronics (ISIE), 2019Growing commercial acceptance of electric vehicles (EV) resulted in increased focus on the development of technologies associated with it. This includes research on vehicle charging systems, traction inverters and motors, transmission systems, cooling mechanisms to name a few.
S. Ranjith, R. Sudharshan Kaarthik
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2014
Modules at last! In most books on a similar subject modules appear on the very first pages. And there are good reasons for this. Ring theory and module theory are symbiotic. Many questions about rings can be handled most effectively by using modules. Moreover, sometimes modules seem to be inevitable.
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Modules at last! In most books on a similar subject modules appear on the very first pages. And there are good reasons for this. Ring theory and module theory are symbiotic. Many questions about rings can be handled most effectively by using modules. Moreover, sometimes modules seem to be inevitable.
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An Algorithmic Approach To Space Vector Modulation For Multiphase Inverters
2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition, 2009Since late 1990s multiphase drives have become a serious alternative to three-phase drives in some particular applications such as electric ship propulsion, locomotive traction, electric vehicles and high power industrial applications. Nowadays the research activity is focused on the development of control strategies that can exploit the degrees of ...
CASADEI, DOMENICO +4 more
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Discontinuous space vector modulation technique for motor supply
2011 IEEE EUROCON - International Conference on Computer as a Tool, 2011The paper presents a simulation study of a space vector modulation inverter that supplies an alternating current motor drive with low switching losses. A new technique of the reduced number of switchings within the modulating interval is proposed. Simulation results are based on the theoretical explanation.
Valery Vodovozov, Mikhail Egorov
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Space-Time and Space-Frequency Block Coded Vector OFDM Modulation
IEEE Communications Letters, 2017Vector orthogonal frequency division multiplexing (OFDM) is a promising modulation scheme, which allows for a flexible configuration and connects OFDM and single-carrier frequency domain equalization in a unified framework. In this letter, we design Alamouti-like space-time block coded and space-frequency block coded vector OFDM systems. Based on these
Jing Han 0008, Geert Leus
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