scholarly journals Effect of different core materials in very low voltage induction motors for electric vehicle

2021 ◽  
Vol 12 (2) ◽  
pp. 95-103
Author(s):  
Fransisco Danang Wijaya ◽  
Iftitah Imawati ◽  
Muhammad Yasirroni ◽  
Adha Imam Cahyadi
Keyword(s):  
Induction Motor ◽  
Electric Vehicle ◽  
Power Density ◽  
Induction Motors ◽  
Low Voltage ◽  
Nickel Steel ◽  
Loss Distribution ◽  
The Core ◽  
Cage Induction Motor ◽  
Core Materials

The use of squirrel cage induction motor for electric vehicle (EV) has been increasingly popular than permanent magnet and brushless motors due to their independence on rare materials. However, its performance is significantly affected by the core materials. In this research, induction motors performance with various core materials (M19_24G, Arnon7, and nickel steel carpenter) are studied in very low voltage. Three phases, 50 Hz, 5 HP, 48 V induction motor were used as the propulsion force testbed applied for a golf cart EV. The aims are to identify loss distribution according to core materials and compare power density and cost. The design process firstly determines the motor specifications, then calculates the dimensions, windings, stator, and rotor slots using MATLAB. The parameters obtained are used as inputs to ANSYS Maxwell to calculate induction motor performance. Finally, the design simulations are carried out on RMxprt and 2D transient software to determine the loss characteristics of core materials. It is found that the stator winding dominates the loss distribution. Winding losses have accounted for 52-55 % of the total loss, followed by rotor winding losses around 25-27 % and losses in the core around 1-7 %. Based on the three materials tested, nickel steel carpenter and M19_24G attain the highest efficiency with 83.27 % and 83.10 %, respectively, while M19_24G and Arnon7 possess the highest power density with 0.37 kW/kg and 0.38 kW/kg whereas, in term of production cost, the Arnon7 is the lowest.

scholarly journals An analysis of inter-bar currents on a polyphase cage induction motor

2004 ◽  
Vol 15 (4) ◽  
pp. 476-484
Author(s):  
Renato Carlson ◽  
Cláudia A. da Silva ◽  
Nelson Sadowski ◽  
Michel Lajoie-Mazenc
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Induction Motor ◽  
Induction Motors ◽  
Short Circuit ◽  
Fundamental Component ◽  
Cage Induction Motor ◽  
Element Method

This work uses a methodology based on 2D-Finite Element Method (FEM) and on the Circuits Theory (Independent Currents Method) to analyze the inter-bar currents on the rotor of cage induction motors. The Multi-Slice Technique is used to consider the skewing effect. Three conditions are considered: one inter-bar resistance, two inter-bar resistances and three inter-bar resistances. The results show the distribution of currents in the rotor bars, short-circuit rings and transversal resistances at a given time. The fundamental component of the inter-bar and surrounding bar currents are shown to help understanding the phenomenon.

scholarly journals Design and Simulation of Three Level Neutral Point Clamped Inverter Fed Induction Motor Drive

2018 ◽  
Vol 2 (5) ◽  
Author(s):  
M. Balasubbareddy ◽  
K. Sri KavyaDurga
Keyword(s):  
Induction Motor ◽  
Low Voltage ◽  
Power Circuit ◽  
Complete Control ◽  
Medium Voltage ◽  
Squirrel Cage ◽  
Squirrel Cage Induction Motor ◽  
Control Circuits ◽  
Cage Induction Motor ◽  
Future Work

The objective of the project is to obtain some proficiency in building converters to control speed of medium voltage induction motors. The thesis covers summary of literature surveyed, selection of a topology of converter for design, design of a 3-Level NPC inverter power circuit and FOC parameters. The entire system has been simulated using PSIM software for verification of design. Results obtained are presented. Results prove that the understanding of the student (author) is satisfactory. A low voltage 10kW squirrel cage induction motor has been chosen as the load to converter for design and simulation. Future work may be design of complete control circuits implementing FOC, building complete hardware and testing the small motor chosen.

scholarly journals The development of an energy efficient electric drive for agricultural machines

2022 ◽  
Vol 1211 (1) ◽  
pp. 012018
Author(s):  
T M Khalina ◽  
S Yu Eremochkin ◽  
D V Dorokhov
Keyword(s):  
Induction Motor ◽  
Electric Drive ◽  
Single Phase ◽  
Induction Motors ◽  
Semiconductor Device ◽  
Squirrel Cage ◽  
Squirrel Cage Induction Motor ◽  
Three Phase ◽  
Cage Induction Motor ◽  
Agricultural Machines

Abstract Agriculture is a socially significant sector of the economy. The growth of agricultural production contributes to the stable development of society. It is necessary to use new mechanisms driven by induction motors to increase agricultural productivity. Three-phase induction motors are mainly used in the electric drive of agricultural machines. At the same time, it is advisable to use a single-phase network to supply power to remote farms. In this regard, the development of a single-phase electric drive using three-phase motors becomes relevant. In this work, a study of an original semiconductor device for starting a three-phase induction motor from a single-phase network is made. The simulation model of the device created in the Matlab Simulink environment made it possible to study the electromechanical characteristics of the induction motor when operating from a single-phase network. A comparison of the characteristics of the motor during operation from a three-phase and a single-phase network is carried out. The most significant results of the work are the data obtained that the developed device can be used to start and operate a squirrel cage induction motor from a single-phase network. At the same time, the engine energy parameters change slightly.

scholarly journals Application of Genetic Algorithm for Inter-Turn Short Circuit Detection in Stator Winding of Induction Motor

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8523
Author(s):  
Marcin Tomczyk ◽  
Ryszard Mielnik ◽  
Anna Plichta ◽  
Iwona Gołdasz ◽  
Maciej Sułowicz
Keyword(s):  
Genetic Algorithm ◽  
Induction Motor ◽  
Diagnostic Method ◽  
Induction Motors ◽  
Short Circuit ◽  
Experimental Tests ◽  
Stator Winding ◽  
Short Circuits ◽  
Cage Induction Motor ◽  
Industry Conditions

This paper presents a new method of inter-turn short-circuit detection in cage induction motors. The method is based on experimental data recorded during load changes. Measured signals were analyzed using a genetic algorithm. This algorithm was next used in the diagnostics procedure. The correctness of fault detection was verified during experimental tests for various configurations of inter-turn short-circuits. The tests were run for several relevant diagnostic signals that contain symptoms of faults in an examined cage induction motor. The proposed algorithm of inter-turn short-circuit detection for various levels of winding damage and for various loads of the examined motor allows one to state the usefulness of this diagnostic method in normal industry conditions of motor exploitation.

Using LLC Resonant Converter for Designing Electric Vehicle DC/DC Converter

2014 ◽  
Vol 1070-1072 ◽  
pp. 1614-1620
Author(s):  
Tong Li Wu ◽  
Ke Hong Wang ◽  
Jia Jia Yang
Keyword(s):  
Magnetic Structure ◽  
Electric Vehicle ◽  
Power Density ◽  
Switching Frequency ◽  
Resonant Converter ◽  
Theoretical Derivation ◽  
Loss Distribution ◽  
Loss Analysis ◽  
Llc Resonant Converter

A design of 100 kHz-1350 W electric vehicle DC/DC converter using LLC resonant converter with integrated transformer is presented. The loss analysis based on theoretical derivation is performed to reveal the loss distribution. Integrated magnetic structure is adopted in the design to further increase the efficiency and power density. A 280 V-360 V input, 13.5 V/100 A output prototype is built to verify its advantage, and the efficiency at 320 V input, 13.5 V/100 A output is 91.5% at the switching frequency of 100 kHz.

Modeling, Simulation and Analysis of Induction Motor for Electric Vehicle Application

2018 ◽  
Vol 7 (3.17) ◽  
pp. 145
Author(s):  
Yushaizad Yusof ◽  
Kamarulzaman Mat
Keyword(s):  
Induction Motor ◽  
Electric Vehicle ◽  
Power Efficiency ◽  
Combustion Engine ◽  
Equivalent Circuit Model ◽  
Fast Response ◽  
Synchronous Reference Frame ◽  
Start Up ◽  
Three Phase ◽  
Cage Induction Motor

High power induction motor (IM) is widely used in industries and recently has been put into electric vehicle as the replacement of the internal combustion engine. In order to study the characteristics of the IM, a model of three-phase squirrel cage induction motor is designed and developed using MATLAB Simulink tool. Synchronous reference frame (SRF) technique is implemented to simplify the equivalent circuit model. Based on state space form, a flux linkage equation is developed using three stages transformation matrices. It demonstrated a good performance with fast response for AC start-up test, where simulated induced torque, rotor speed, mechanical output power, efficiency, slip and stator current waveforms were generated accordingly.  Indeed, the developed IM model can be used as a starting platform to further study and analyses the IM drives performance for electric vehicle application. 

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