Results 41 to 50 of about 645,823 (187)

Protection of AC motors by means of microcontrollers

open access: yes2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099), 2005
In this study, a system was designed and implemented to make protection for the current, voltage, winding temperature of induction motors. In the system, the voltage transformer with transformation ratio of 400/5 V and current transformer with transformation ratio of 25/5 A were connected to each phase of induction motors.
Çunkaş, M., Akkaya, R., Öztürk, A.
openaire   +2 more sources

Design issues of an IPM motor for EPS [PDF]

open access: yes, 2011
In electric power steering (EPS), permanent magnet (PM) brushless ac (BLAC) motors offer distinct advantages over other electric motor types in terms torque smoothness, reliability and efficiency.
Shen, Jian-Xin   +4 more
core   +1 more source

Electric generators and motors: An overview

open access: yesCES Transactions on Electrical Machines and Systems, 2017
Starting with Faraday's law of electromagnetic induction in 1831, electric (electromagnetic) machines have been developed ever since as “assembles” of electric and magnetic coupled circuits that convert mechanical to electrical energy (in generators) and
Ion Boldea
doaj   +1 more source

Reducing Energy Consumption and Increasing the Performances of AC Motor Drives Using Fuzzy PI Speed Controllers

open access: yesEnergies, 2021
Alternating current electric drives are widely used in many commercial applications. Increasing energy efficiency and improving the quality of regulation are major goals.
Constantin Volosencu
doaj   +1 more source

Induction Motor Supplied with Voltage Containing Symmetrical Subharmonics and Interharmonics

open access: yesEnergies, 2022
Sinusoidal voltage fluctuations can be considered a specific result of the occurrence of voltage subharmonics and interharmonics, which are components of low frequency or not being an integer multiple of the frequency of the fundamental voltage harmonic.
Piotr Gnaciński   +4 more
doaj   +1 more source

Research on Calculation Method of AC Winding Eddy Current Loss in High-Density PMSMs Based on Magnetic Circuit Analysis

open access: yesInternational Journal of Rotating Machinery
Exploring the refined calculation theory of motor losses is not only the foundation for improving the wide-range efficiency of motors but also the basis for the refined analysis of motor temperature rise and the design of cooling and heat dissipation ...
Shijun Chen   +4 more
doaj   +1 more source

Feasibility of high-frequency alternating current power for motor auxiliary loads in vehicles

open access: yes, 2011
This paper presents a feasibility study into the application of a 100-V, 50-kHz high-frequency ac (HFAC) network for powering automotive electrical auxiliaries. The study is focused on motor-actuated loads and is divided into two sections.
Nicholas D. Vaughan   +5 more
core   +1 more source

Modified magnetic equivalent circuit of double‐stator single‐rotor axial flux permanent magnet machine considering stator radial‐end flux‐leakage

open access: yesIET Electric Power Applications
A modified non‐linear magnetic equivalent circuit (MEC) model is presented for double‐stator single‐rotor axial flux permanent magnet (AFPM) (DSSR‐AFPM) machine considering stator radial‐end flux‐leakage, which is severer under a heavier load.
Jixuan Chen   +5 more
doaj   +1 more source

Simulation of a Servoposition System using a three-phase induction machine and indirect vector control.

open access: yesRevista Tecnologia, 2009
The principle of vector control of an AC machine enables the dynamic control of AC motors, and induction motors in particular, to a level comparable to that of a DC machine.
Eber de Castro Diniz   +2 more
doaj  

Speed Control of AC Motor

open access: yesInternational Journal of Innovative Technology and Exploring Engineering, 2020
An enormous number of motors have been using in our daily life ranging from home appliances to industrial machinery. During the last decade, there has been tremendous change industry automation and home automation. Electric motor is always the essential part in home appliances as well as industrial applications in the automation. There is always a need
Y. Sudha*, P. Pooja, K Rama, P. Shweta
openaire   +1 more source

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