Results 21 to 30 of about 645,823 (187)
Induction motor control through AC/DC/AC converters [PDF]
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.
Abderrahim Elfadili +5 more
openaire +2 more sources
It has been proven that fuzzy controllers are capable of controlling non-linear systems where it is cumbersome to develop conventional controllers based on mathematical modeling.
Hosein Marzi
doaj +1 more source
Performance estimation of interior permanent-magnet brushless motors using the voltage-driven flux-MMF diagram [PDF]
The flux-magnetomotive force (flux-MMF) diagram, or "energy conversion loop," is a powerful tool for computing the parameters of saturated interior permanent-magnet brushless motors, especially when the assumptions underlying classical dq theory are not ...
Cossar, C. +3 more
core +1 more source
Performance of halbach magnetized brushless ac motors [PDF]
In this paper, an anisotropic bonded NdFeB Halbach magnetised ring magnet, which is oriented in powder alignment system during injection moulding and subsequently impulse magnetised, is employed. The features of such a Halbach magnetised machine, in terms of the airgap field distribution, and the back-emf and cogging torque waveforms, etc.
Zhu, Z.Q. +5 more
openaire +2 more sources
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
Impact of cross-saturation in sensorless control of transverse-laminated synchronous reluctance motors [PDF]
Synchronous reluctance (SyR) motors are well suited to a zero-speed sensorless control, because of their inherently salient behavior. However, the cross-saturation effect can lead to large errors on the position estimate, which is based on the ...
Pastorelli, Michele Angelo +2 more
core +1 more source
CARRIER SIGNAL INJECTION BASED SENSORLESS CONTROL OF PERMANENT MAGNET BRUSHLESS AC MACHINES [PDF]
This thesis is focused on the carrier signal injection based sensorless control of Permanent Magnet (PM) Brushless AC (BLAC) machines. Based on the machine saliency property, carrier signal injection based sensorless techniques have been well developed ...
Gong, Liming
core +6 more sources
Using the AC Drive Motor as a Transducer for Detecting Electrical and Electromechanical Faults [PDF]
Condition monitoring of AC motors is a subject area that has received extensive research. Whether this monitoring is carried out on a scheduled basis by engineer intervention, or continuously using an on-line unit, the results of this testing enable ...
Lane, Mark
core +4 more sources
High temperature machine: Characterization of materials for the electrical insulation
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
New trends in electric motors and selection for electric vehicle propulsion systems
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

