Results 1 to 10 of about 285 (175)

Speed Estimation of Six-Phase Induction Motors, Using the Rotor Slot Harmonics [PDF]

open access: yesSensors, 2022
Multiphase machines have recently been promoted as a viable alternative to traditional three-phase machines. Most experts are looking for strategies to estimate the rotation speed of such complex systems, since speed data are required for high ...
Khaled Laadjal   +4 more
doaj   +6 more sources

Induction Motor Speed Estimator Using Rotor Slot Harmonics

open access: yesAdvances in Electrical and Computer Engineering, 2009
This paper presents a solution for the estimation of induction machine rotor speed utilizing harmonic saliencies created by rotor and stator slotting. This solution purposes to add a carrier-signal voltage at the fundamental excitation.
RATA, G.   +3 more
doaj   +2 more sources

Design and analysis of electromagnetic and mechanical structure of ultra-high-speed slotted solid rotor induction motor [PDF]

open access: yesScientific Reports
In this paper, a high speed slotted solid-rotor induction motor (SSRIM) with rated power of 15 kW and rated speed of 120krpm is studied, and its electromagnetic performance and rotor mechanical structure are optimized.
Jiawei Yi, Zhihao Zhu
doaj   +2 more sources

Induction Motors Speed Estimation by Rotor Slot Harmonics Frequency Using Zoom Improved Chirp-Z Transform Algorithm

open access: yesEnergies, 2022
This paper analyzes the digital signal processing techniques and estimates induction motor (IM) rotational speed operating in stationary or non-stationary conditions.
Mahamadou Negue Diarra   +5 more
doaj   +1 more source

Calculation improvement of no-load stray losses in induction motors with experimental validation [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2015
On the basis of the known fact that all air gap main flux density variations are enclosed by permeance slot harmonics, only one component of stray losses in rotor (stator) iron is considered in the new classification, instead of 2 components ...
Kostić Miloje M.
doaj   +1 more source

The Modeling and Investigation of Slot Skews and Supply Imbalance on the Development of Principal Slotting Harmonics in Squirrel Cage Induction Machines

open access: yesIEEE Access, 2021
A discrete winding function analysis (DWFA) based approach for the modelling of skewed rotor cage-type induction motor with minimal simulation time is presented in this paper. The rotor slot skew has a significant attenuating impact on principal slotting
Bilal Asad   +8 more
doaj   +1 more source

Contributions to Elimination of Excitation Field Harmonics in Turbogenerators

open access: yesAdvances in Electrical and Computer Engineering, 2022
Turbogenerators driven by high-speed turbines are frequently used in electrical power generation. Power quality of a synchronous generator is directly associated with its excitation field harmonics.
ATALAY, A. K., KOCABAS, D. A.
doaj   +1 more source

Characteristics Analysis of Field Winding Inter-Turn Short-Circuit Fault for Large-Capacity Synchronous Condenser Based on Stator Winding Asymmetric Branch Current

open access: yesIEEE Access, 2023
The early inter-turn short-circuit fault of field winding (ISFF) occurs between adjacent strands in a single rotor slot, which is a significant safety hazard in the transient operation of the large-capacity synchronous condenser.
Weihao Wang   +3 more
doaj   +1 more source

A Design Method of the Rotor Auxiliary Slot for the Water-filled Submersible Induction Motors

open access: yesCES Transactions on Electrical Machines and Systems, 2022
Aiming at the problem of electromagnetic vibration of the water-filled submersible induction motor (WSIM), a method of opening auxiliary slots on the rotor side is proposed to weaken the air-gap field harmonics caused by the rotor slot permeance ...
Jiaxin Li   +4 more
doaj   +1 more source

A Comprehensive Disturbing Effect Analysis of Multi-Sectional Rotor Slot Geometry for Induction Machines in Electrical Vehicles

open access: yesIEEE Access, 2021
Although the performance of an Induction Motor (IM) can be maximized for any speed by use of an inverter, there is still room to contribute by optimizing the rotor slot shape while decreasing the mechanical disturbing effects and acoustic noise.
Abdulsamed Lordoglu   +2 more
doaj   +1 more source

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