Results 31 to 40 of about 204,612 (306)
Improved rotor position estimation by signal injection in brushless AC motors, accounting for cross-coupling magnetic saturation [PDF]
, 2007 The paper presents an improved signal injection- based sensorless control method for permanent magnet brushless AC (BLAC) motors, accounting for the influence of cross-coupling magnetic saturation between the d- and q-axes.
Bingham, Chris +4 more
core +3 more sources
Induction motor control through AC/DC/AC converters [PDF]
Proceedings of the 2010 American Control Conference, 2010 We are considering the problem of controlling inductions motors driven through AC/DC rectifiers and DC/AC inverters. The control objectives are threefold: (i) forcing the motor speed to track a reference signal, (ii) regulating the DC Link voltage, (iii) assuring a satisfactory power factor correction (PFC) with respect to the power supply net.
A Elfadili +5 more
openaire +1 more source
Online optimal flux-weakening control of permanent-magnet brushless AC drives [PDF]
, 2000 An enhanced online optimal control strategy, which maximizes the flux-weakening performance of a brushless AC motor, is described, and applied to motors having different rotor topologies: interior (radial or circumferential), inset, and surface-mounted ...
Chen, Y.S., Howe, D., Zhu, Z.Q.
core +1 more source
Energies, 2023 In some power systems, the voltage waveform contains frequency components less than fundamental, called subharmonics or subsynchronous interharmonics. Voltage subharmonics can be both positive- and negative-sequence, independent of their frequency (order)
Piotr Gnaciński +3 more
doaj +1 more source
Robust control of synchronous motor through AC/DC/AC converters [PDF]
Control Engineering Practice, 2010 The problem of controlling synchronous motors, driven through AC/DC rectifiers and DC/AC inverters is addressed. The control objectives are three fold: (i) forcing the motor speed to track a varying reference signal in presence of motor parameter uncertainties;(ii) regulating the DC Link voltage; (iii )assuring a satisfactory power factor correction ...
El Magri, Abdelmounime +3 more
openaire +3 more sources
Adiabatic response and quantum thermoelectrics for ac driven quantum systems [PDF]
, 2016 We generalize the theory of thermoelectrics to include coherent electron systems under adiabatic ac driving, accounting for quantum pumping of charge and heat as well as the associated work exchange between electron system and driving potentials.
Arrachea, Liliana +3 more
core +3 more sources
New trends in electric motors and selection for electric vehicle propulsion systems
IET Electrical Systems in Transportation, 2021 The increase in the numbers of electric vehicles (EVs) is seen as an upgrading of the existing vehicles for various reasons. This calls for an in‐depth analysis of the heart of these vehicles—the motor. A motor in an electric vehicle propulsion system is
Sreedhar Madichetty +2 more
doaj +1 more source
Energies, 2023 In modern power systems, interharmonics have emerged as noninteger frequency components that appear in current or voltage signals. Double-stage AC-DC-AC converters have been identified as a primary source of interharmonics.
Alberto Gudiño-Ochoa +3 more
doaj +1 more source
The model of double-cage induction motor for the analysis of thermal fields in transient operations
Archives of Electrical Engineering, 2017 Emergency motor switch-on happens occasionally while operating a doublesquirrel- cage motor at full supply voltage with the rotor blocked (e.g., in coal mills). After releasing the blockage, the by now heated motor is started up again.
Mróz Jan
doaj +1 more source
High temperature machine: Characterization of materials for the electrical insulation
Open Physics, 2020 This paper aims to present and analyze the materials adapted to design a machine that can work with a high current density without any specific cooling system. In other words, the machine is equipped with material that supports high internal temperature,
Lecointe Jean-Philippe +4 more
doaj +1 more source