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Relevant bibliographies by topics / Copper rotor induction moters

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Journal articles

Academic literature on the topic 'Copper rotor induction moters'

Author: Grafiati

Published: 6 September 2023

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Journal articles on the topic "Copper rotor induction moters"

1

Wu, Wei, Jikai Si, Haichao Feng, Zhiping Cheng, Yihua Hu, and Chun Gan. "Rotor Eddy Current Loss Calculation of a 2DoF Direct-Drive Induction Motor." Energies 12, no. 6 (2019): 1134. http://dx.doi.org/10.3390/en12061134.

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A two-degree-of-freedom direct-drive induction motor (2DoFDDIM), whose solid rotor is coated with a copper layer, is capable of linear, rotary, and helical motions and has widespread applications. For solid-rotor motors, the calculation and analysis of rotor total eddy current loss (TECL) are crucial in studying the factors causing such a loss and possible loss reduction methods. In this study, a new nonlinear analytical method considering the saturation of the rotor core is proposed to solve the fundamental magnetic field. The new method divides the time period into segments. The magnetic fie

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2

Wu, Yucai, Shuqiong Sun, Qingfei An, and Xu Lie. "Treatment Strategy Research on a Squirrel-Cage Induction Motor with Broken Rotor Bar Faults." Sensors 22, no. 12 (2022): 4345. http://dx.doi.org/10.3390/s22124345.

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Squirrel-cage induction motors are increasingly displaying a broken rotor bar fault, which represents both a technical problem and an economic problem. After confirming that the broken rotor bars do not affect the normal start-up and basic working performance of the squirrel-cage induction motor, this paper focuses on the loss and efficiency changes of the motor brought about by the broken rotor bar fault. Using finite element simulation and experimentation, various losses like stator copper loss, iron loss, rotor copper loss, mechanical loss and additional losses, total loss and efficiency ar

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3

Lee, Sang Yul, and Sang Yong Lee. "A Study on the Microstructural Defects in Slots of Thixoformed Copper Rotor." Solid State Phenomena 116-117 (October 2006): 300–303. http://dx.doi.org/10.4028/www.scientific.net/ssp.116-117.300.

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Cu-Ca alloys and the squirrel cage rotors for induction motors of small capacities were used for the development of thixoforming processes. Processing conditions, motor efficiency and forming defects in macro- and microscale for thixoforming of Cu-Ca rotors have been performed to investigate the microstructural features and the filling phenomena in slots of squirrel cage rotor. Inadequate filling due to the complexity of slot structure, separation of solidified metal from the slot, porosities and phase inhomogenitites were typical microstructural defects found in thixoformed Cu-Ca rotors. Exac

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4

Leicht, Aleksander, and Krzysztof Makowski. "Influence of shape and material of rotor bars on performance characteristics of single-phase self-excited induction generators." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 38, no. 4 (2019): 1235–44. http://dx.doi.org/10.1108/compel-10-2018-0430.

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Purpose The purpose of the paper is to present an analysis of an influence of shape and material of rotor bars on the process of self-excitation and performance characteristics of single-phase, self-excited induction generator (SP-SEIG). Design/methodology/approach The presented analysis is based on the results of transient simulations of SP-SEIG performed with the use of field-circuit model of the machine. Four various shapes of the rotor bars and two different conductor materials were investigated. The results for the base model with rounded trapezoidal rotor slots were validated by measurem

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5

Viego Felipe, Percy R., Vladimir Sousa Santos, Julio R. Gómez Sarduy, José P. Monteagudo Yanes, and Enrique Ciro Quispe. "Induction motors with copper rotor: a new opportunity for increasing motor efficiency." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 3 (2023): 2409. http://dx.doi.org/10.11591/ijece.v13i3.pp2409-2418.

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<p>The copper rotor induction motor (CURIM) was recently introduced because it has lower rotor fusion losses than the aluminum rotor (ALRIM). Furthermore, with CURIM, it is easier to reach IE4 and IE5 efficiency levels. The CURIM is advantageous for compact motors, escalators, and electric vehicle applications. However, CURIMs present slip, power factor, temperature increase, and torque decrease problems that must be analyzed. This study compared the economic feasibility of using CURIM with ALRIM by applying discount techniques. A case study was carried out in a sugar company with a cycl

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6

Bernatt, Jakub, Stanisław Gawron, Tadeusz Glinka, and Artur Polak. "Traction induction motor." MATEC Web of Conferences 180 (2018): 04005. http://dx.doi.org/10.1051/matecconf/201818004005.

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The paper presents a traction induction motor with an innovative rotor winding design. The winding of the rotor is almost identical to the armature winding in the dc traction motors, with the exception of commutator. Winding is double layered. The bars are insulated. Along the iron core bars are secured with wedges and in the winding outhang with bandages. The bars of the bottom layer in the winding outhang part near the iron core are bent radially in the direction of the shaft axis. On the winding outhang of the bottom layer an inner bandage is applied. On the winding outhang of the top layer

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7

Lee, Sang Yul, and Sang Yong Lee. "Filling and Solidification Characteristics during Thixoforming of Copper Rotor for the Electrical Motors." Solid State Phenomena 116-117 (October 2006): 652–55. http://dx.doi.org/10.4028/www.scientific.net/ssp.116-117.652.

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Filling and solidification phenomena during thixoforming of copper rotor for small sized induction motors have been analyzed and characterized by experiment and computer simulation. Forming defects in slots of thixoformed rotor were examined by microstructural observation. Most filling and solidification failures were mainly related to complexity in slurry flows through slots in rotor core. Computer simulation with single slot model showed the effects of die temperature and ram speed on the filling characteristics clearly. Simulations with flow guide model showed that the control of filling ve

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8

DEKHANDJI, Fatma Zohra, and Hamid BENTARZI. "Theoretical and Experimental Investigation of the Supply Voltage Unbalance Effects on Squirrel Cage Induction Motors." Algerian Journal of Signals and Systems 4, no. 2 (2019): 51–60. http://dx.doi.org/10.51485/ajss.v4i2.82.

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Voltage unbalance is one of the power quality problems causing a lot of ill effects on induction motors. These are namely: Overheating, line-current unbalance, derating, torque pulsation, and inefficiency. The objective of the present work is to assess and quantify the effects of voltage unbalance on induction motors using both theory and experimentation. The analytical study is performed using the complex voltage unbalance factor model of this problem. The work deals specifically with the influence of the variations in the complex angle of the voltage unbalance factor on the stator and rotor

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9

Maestre-Cambronel, Daniel, Jhan Piero Rojas, and Jorge Duarte-Forero. "EVALUATION OF FAULTS IN THE SQUIRREL CAGE THREE-PHASE INDUCTION MOTORS." Revista Ingenierías Universidad de Medellín 21, no. 40 (2021): 126–42. http://dx.doi.org/10.22395/rium.v21n40a8.

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Induction motors have played a central role in the techno-economic development of modern industries and electric power generation. However, the presence of recurring failures hinders a cost-effective performance and leads to catastrophic damage. Therefore, the present study proposed an assessment to investigate the influence of two types of failures in induction motors, namely failure due to broken bars in the rotor and defects in the connection between the rotor bars and the end ring. Accordingly, a three-phase induction motor was evaluated under different failure conditions that modified the

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10

Ocak, Cemil. "A FEM-Based Comparative Study of the Effect of Rotor Bar Designs on the Performance of Squirrel Cage Induction Motors." Energies 16, no. 16 (2023): 6047. http://dx.doi.org/10.3390/en16166047.

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Induction motors (IM) are the most frequently used type of motor in the industry. The number of rotor slots, bar geometry, and conductivity of bar material have a strong impact on the torque profile and efficiency characteristics of induction motors. This study focused on investigating the effect of different rotor bar designs on motor performance by the finite element method (FEM). The IMs have been designed using the same stator core, winding, and core lengths. The total rotor bar cross-section areas are also fixed throughout all designs. In addition to the change in the number of rotor bars

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