Space vector representation of induction motor model in field weakening regime [PDF]
Serbian Journal of Electrical Engineering, 2012 In this paper a space vector model of an induction motor in a field weakening regime is detailed. Stator and rotor flux space vector trajectories are shown in a complex plane for the case when the machine is supplied by limited voltage.
Matić Petar +2 more
doaj +1 more source
Hybrid-Excited Permanent Magnet-Assisted Synchronous Reluctance Machine
Energies, 2022 This paper presents the results of simulation tests of a unique hybrid-excited permanent magnet machine operating in in different working regimes.
Marcin Wardach +8 more
doaj +1 more source
IPMSM torque control strategies based on LUTs and VCT feedback for robust control under machine parameter variations [PDF]
, 2016 In recent years, Interior Permanent Magnet Synchronous Machines (IPMSMs) have attracted a considerable attention in the scientific community and industry for Electric and Hybrid Electric Vehicle (HEV) propulsion systems.
Arias Pujol, Antoni +6 more
core +1 more source
A Review on Variable Flux Machine Technology: Topologies, Control Strategies and Magnetic Materials
IEEE Access, 2019 Modern applications demand challenging operation requirements from electrical machines. Variable-flux machine (VFM) concepts are found to offer new opportunities for improved machine design. This paper reviews the VFM technology. Three topologies, mainly
Rekha Jayarajan +2 more
doaj +1 more source
Actuators, 2023 In the field-weakening region, the traditional field-weakening method for induction motor drives based on model predictive control (MPC) is to take a no-load operation as the premise and adjust the flux reference in the cost function proportional to the ...
Jingtao Huang +3 more
doaj +1 more source
Off-fault tensile cracks: A link between geological fault observations, lab experiments, and dynamic rupture models [PDF]
, 2012 We examine the local nature of the dynamic stress field in the vicinity of the tip of a semi-infinite sub-Rayleigh (slower than the Rayleigh wave speed, c_R) mode II crack with a velocity-weakening cohesive zone. We constrain the model using results from
Griffith, W. A. +4 more
core +1 more source
Impact of the motor magnetic model on direct flux vector control of interior PM motors [PDF]
, 2011 The stator-field-oriented, direct-flux vector control has been proven to be effective in terms of linear torque control and model independent performance at limited voltage and current (i.e. in flux weakening) for AC drives of various types.
Bojoi, R. +2 more
core +1 more source
Direct Flux Field Oriented Control of IPM Drives with Variable DC-Link in the Field-Weakening Region [PDF]
, 2009 This paper presents the direct flux control of an interior permanent-magnet (IPM) motor drive in the field-weakening region. The output torque is regulated by the coordinated control of the stator flux amplitude and the current component in quadrature ...
Armando, Eric Giacomo +2 more
core +1 more source
Field Oriented Control of IPM Drives for Flux Weakening Applications [PDF]
EPE Journal, 2010 Interior Permanent Magnet (IPM) drives are adapted to flux-weakening, then to constant power operation over a wide speed range. Most of the control strategies for IPM motor drives are based on the control of the current vector. Flux-weakening is obtained by proper current references, that are calculated according to the magnetic model of the motor ...
PELLEGRINO, GIANMARIO +2 more
openaire +2 more sources
Effect of the source charge on charged-beam interferometry [PDF]
, 1998 We investigate quantal perturbations of the interferometric correlations of charged bosons by the Coulomb field of an instantaneous, charged source. The source charge increases the apparent source size by weakening the correlation at non-zero relative ...
B. Erazmus +23 more
core +1 more source