Results 61 to 70 of about 881,216 (213)

Comb-based radio-frequency photonic filtering with 20 ns bandwidth reconfiguration [PDF]

open access: yes, 2013
Optics LettersThe article of record as published may be found at http://dx.doi.org/10.1364/ol.38.002735We present a scheme to generate a 10 GHz optical frequency comb that is bandwidth reconfigurable on a time scale of tens of nanoseconds via electronic ...
Leaird, Daniel E.   +3 more
core   +3 more sources

Development of explosion-proof permanent magnet synchronous motor with variable-frequency drive integratio

open access: yesGong-kuang zidonghua, 2017
Domestic scraper conveyor has big rotary inertie and starting torque, which makes starting of its driving moter difficult, so the ordinary asynchronous motors can't fulfill the task.
ZHANG Yanmin, SU Hao, JIANG Qingzhang
doaj   +1 more source

Microcontroller Based Variable Frequency Power Inverter [PDF]

open access: yes, 2007
The variable frequency inverters have been used in wide applications, such as speed control of induction motors. The variable speed operation of a single phase and three-phase induction motors suffer from large harmonic and limited speed range. Therefore,
A. Ahmed, Khalid Ali Madi
core  

LINEAR AND NON-LINEAR VOLTAGE-TO-FREQUENCY MULTI-ZONE CONTROL OF SYNCHRONOUSLY MODULATED POWER ELECTRONIC INVERTERS

open access: yesJournal of Engineering Science (Chişinău)
The publication presents a brief analysis of the results from the study on power electronic converters based on voltage source inverters (VSIs) and neutral-point-clamped inverters (NPCIs) with scalar control modes implemented by ...
OLESCHUK, Valentin, VASILIEV, Irina
doaj   +1 more source

Опыт внедрения частотно-регулируемого электропривода насосной станции аммиакопровода [PDF]

open access: yes, 2013
The methodology and experience of implementing variable-frequency induction motor drive systems for the pumping station of enterprise «Ukrhimtransammiak» are summarized.
Горбачев, Николай Васильевич   +2 more
core  

High-performance control of dual-inertia servo-drive systems using low-cost integrated SAW torque transducers [PDF]

open access: yes, 2006
—This paper provides a systematic comparative study of compensation schemes for the coordinated motion control of two-inertia mechanical systems. Specifically, classical proportional–integral (PI), proportional–integral–derivative (PID), and resonance ...
Bingham, Chris   +2 more
core   +1 more source

Fault signal propagation through the PMSM motor drive systems [PDF]

open access: yes, 2017
This paper describes how a mechanical disturbance on the shaft of a variable speed permanent magnet motor (PMSM) is propagated to the supply input side of the drive system, and therefore may be detected by monitoring specific frequency components in the ...
Arellano-Padilla, J.   +3 more
core   +2 more sources

Simulation of Different Control Strategies of a Three-Phase Induction Motor Coupled to a Real Decanter Centrifuge for Olive Oil Extraction Focusing on Energy Saving

open access: yesApplied Sciences
This study presents the analysis and modeling of the optimal connection between an asynchronous three-phase electrical induction motor and a horizontal centrifuge used in olive oil extraction.
Orkhan Mammadov   +7 more
doaj   +1 more source

Variable-Frequency Drives : Three perspectives

open access: yes, 2014
Godkänd; 2014; 20140602 (jekman)
Ekman, Jonas   +3 more
openaire   +1 more source

To develop an efficient variable speed compressor motor system [PDF]

open access: yes, 2007
This research presents a proposed new method of improving the energy efficiency of a Variable Speed Drive (VSD) for induction motors. The principles of VSD are reviewed with emphasis on the efficiency and power losses associated with the operation of the
Mohd. Yatim, Abdul Halim   +1 more
core  

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