Results 41 to 50 of about 1,020,895 (303)

Sensorless Direct Field-Oriented Control of Three-Phase Induction Motor Drives for Low-Cost Applications [PDF]

open access: yes, 2008
A sensorless direct rotor field-oriented control (SDRFOC) scheme of three-phase induction motors for low-cost applications is presented in this paper. The SDRFOC algorithm is based on a sensorless closed-loop rotor flux observer whose main advantages are
PELLEGRINO, GIAN - MARIO LUIGI   +3 more
core   +1 more source

A Comparison of Techniques for Fault Detection in Inverter-Fed Induction Motors in Transient Regime

open access: yesIEEE Access, 2017
Fault detection in induction motors operating in non-stationary regimes has become a need in today's industry. Most of the works published deal with line-fed motors. Nevertheless, the number of inverter-fed induction motors has significantly increased in
Vanessa Fernandez-Cavero   +3 more
doaj   +1 more source

The impact of demagnetization on the feasibility of permanent magnet synchronous motors in industry applications

open access: yesJournal of Advanced Research, 2019
Permanent magnet (PM) motors are rapidly replacing the dominant induction motors in industrial applications including pumps, fans, and compressors.
A.A. Adly, A. Huzayyin
doaj   +1 more source

Experimental High-Frequency Parameter Identification of AC Electrical Motors [PDF]

open access: yes, 2007
In order to predict conducted electromagnetic interference in inverter-motor drive systems, high-frequency (HF) motor models are requested and the involved parameters have to be available.
Boglietti, Aldo   +2 more
core   +1 more source

Analytical Field Study on Induction Motors under Fluctuated Voltages

open access: yesIranian Journal of Electrical and Electronic Engineering, 2021
Nowadays study of input voltage quality on induction motors behavior has become a controversial subject due to the wide application of these motors in the industry.
M. Ghaseminezhad   +3 more
doaj  

Fault Diagnosis of Three Phase Induction Motor Using Current Signal, MSAF-Ratio15 and Selected Classifiers

open access: yesArchives of Metallurgy and Materials, 2017
A degradation of metallurgical equipment is normal process depended on time. Some factors such as: operation process, friction, high temperature can accelerate the degradation process of metallurgical equipment.
Glowacz A.   +8 more
doaj   +1 more source

Evaluation of Radiation Thermal Resistances in Industrial Motors [PDF]

open access: yes, 2006
This paper deals with the role of the radiation thermal resistances in industrial motors and describes a test set useful for the resistance evaluation. The test set is based on a vacuum chamber and on a numerical acquisition system, and the resistances ...
Parvis, Marco   +3 more
core   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani   +7 more
wiley   +1 more source

Venetoclax‐Based Therapy as a Bridge to Hematopoietic Stem Cell Transplantation in Relapsed or Refractory Pediatric Acute Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Relapsed and/or refractory (R/R) pediatric acute leukemia carries a dismal prognosis, largely driven by chemoresistance to conventional salvage therapy. The BH3‐mimetic venetoclax, combined with chemotherapy or hypomethylating agents, has demonstrated efficacy in small clinical trials.
Katherine S. Colman   +9 more
wiley   +1 more source

Torque prediction using the flux-MMF diagram in AC, DC, and reluctance motors [PDF]

open access: yes, 1996
This paper uses the flux-MMF diagram to compare and contrast the torque production mechanism in seven common types of electric motor. The flux-MMF diagram is a generalized version of the flux-linkage versus current (ψ-i) diagram for switched-reluctance ...
Deodhar, R.P.   +3 more
core   +1 more source

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