Buscar
Mostrando ítems 31-40 de 112
Estudo experimental da indução magnética
(Universidade Estadual Paulista (Unesp), 2012)
This work will discuss how magnetic fields can be produced, either generated by magnets, natural, artificial, or even by an electric current going through a wire, as discovered by Oersted. Besides the theoretical content, ...
Controle sem sensores mecânicos para gerador síncrono a ímã permanente
(Universidade Federal de Santa MariaBREngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia Elétrica, 2015-07-29)
This Thesis proposes sensorless vector control schemes that combine designed
observers in the discrete-time domain to estimate the rotor position and speed for a
permanent magnet synchronous generator of non-salient ...
Método de controle Sensorless para motores síncronos de imãs permanentes
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2019-11-29)
This paper presents the study and development of a sensorless control method for the Permanent Magnet Synchronous Motor (PMSM) based on the estimation of back Electromotive Force (back-EMF). A vector control method is ...
Lei de Weber e indução de correntes
([s.n.], 1993)
Estudo experimental da indução magnética
(Universidade Estadual Paulista (UNESP), 2015)
Estudo experimental da indução magnética
(Universidade Estadual Paulista (Unesp), 2015)
Nanometric alternating magnetic field generator
(2017)
In this work we introduce an alternating magnetic field generator in a cylindrical nanostructure. This field appears due to the rotation of a magnetic domain wall located at some position, generating a magnetic region that ...
Direct Power Control of an Axial Flux Permanent Magnet Synchronous Machine
(2017)
This paper presents a Direct Power Control (DPC) strategy for a variable speed Axial Flux Permanent Magnet Synchronous Generator (AFPMSG). The method consists on calculating the instantaneous power by measuring the machine ...
Quantum Theory of Triboelectricity
(2020-10-30)
We propose a microphysical theory of the triboelectric effect by which mechanical rubbing separates charges across the interface between two materials. Surface electrons are treated as an open system coupled to two baths, ...
FARGO3D: A new GPU-oriented MHD code
(IOP Publishing, 2016-03)
We present the FARGO3D code, recently publicly released. It is a magnetohydrodynamics code developed with special emphasis on the physics of protoplanetary disks and planet-disk interactions, and parallelized with MPI. The ...