Results 11 to 20 of about 470,563 (307)

Analysis of Interharmonics Generation in Induction Motors Driven by Variable Frequency Drives and AC Choppers

open access: yesEnergies, 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

Direct torque control of brushless DC drives with reduced torque ripple [PDF]

open access: yes, 2005
The application of direct torque control (DTC) to brushless ac drives has been investigated extensively. This paper describes its application to brushless dc drives, and highlights the essential differences in its implementation, as regards torque ...
Howe, D., Liu, Y., Zhu, Z.Q.
core   +1 more source

Unified Direct-Flux Vector Control for AC Motor Drives [PDF]

open access: yes, 2010
The paper introduces a Unified Direct-Flux Vector Control scheme suitable for sinusoidal AC motor drives. The AC drives considered here are Induction Motor, Synchronous Reluctance and synchronous Permanent Magnet motor drives, including Interior and ...
Bojoi, R.   +2 more
core   +1 more source

Self-Commissioning of Inverter Nonlinear Effects in AC Drives [PDF]

open access: yes, 2012
The paper presents a novel technique for an accurate identification of the inverter nonlinear effects, such as the dead-time and on-state voltage drops. The proposed technique is very simple and it is based only on a current control scheme.
Armando, Eric Giacomo   +3 more
core   +1 more source

Improved speed estimation in sensorless PM brushless AC drives [PDF]

open access: yes, 2002
The application of flux-observer-based sensorless control to permanent-magnet brushless AC motor drives is described. Current methods of speed estimation are assessed, both theoretically and experimentally, and an improved method, which combines the best
Howe, D., Shen, J.X., Zhu, Z.Q.
core   +1 more source

A novel axial air‐gap transverse flux switching PM generator: Design, simulation and prototyping

open access: yesIET Electric Power Applications, 2023
Wind energy as the cleanest source of renewable energy requires a highly efficient lightweight generator that provides maximum power density while having the least vibration noise and maintenance.
Aghil Ghaheri   +2 more
doaj   +1 more source

Optimal torque control of fault-tolerant permanent magnet brushloss machines [PDF]

open access: yes, 2003
Describes a novel optimal torque control strategy for fault-tolerant permanent magnet brushless ac drives operating in both constant torque and constant power modes.
Atallah, K., Howe, D., Wang, J.B.
core   +1 more source

Multi‐agent control in modular motor drives by means of gossip consensus

open access: yesIET Electric Power Applications, 2022
A modular motor drive (MMD) can be considered as a multi‐agent system, in which the agents work together to reach a common goal. One agent in such an MMD comprises only a subset of the concentrated windings and power electronic converter modules and is ...
Lynn Verkroost   +3 more
doaj   +1 more source

FCS–MPC with Nonlinear Control Applied to a Multicell AFE Rectifier

open access: yesSensors, 2022
The use of controlled power converters has been extended for high power applications, stacking off-the-shelve semiconductors, and allowing the implementation of, among others, AC drives for medium voltages of 2.3 kV to 13.8 kV.
Eduardo Espinosa   +5 more
doaj   +1 more source

Local weak observability conditions of sensorless AC drives [PDF]

open access: yes, 2015
Alternating current (AC) electrical drive control without mechanical sensors is an active research topic. This paper studies the observability of both induction machine and synchronous machine sensorless drives.
Duc, Gilles   +3 more
core   +3 more sources

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