• Title, Summary, Keyword: Traction motor

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Total Enclosed Type Traction Motor Development and Test for Rolling Stock (철도차량용 전폐형 견인전동기 개발 및 시험)

  • Kim, Jung-Chul;Kim, Bong-Chul;Park, Yeong-Ho;Han, Jeong-Soo
    • Proceedings of the KSR Conference
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    • pp.3032-3036
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    • 2011
  • Cooling type of traction motor for EMU in domestic is mostly an open type. Its system is a cooling air entered through air inlet cool down a traction motor and an hot air by traction motor get out air outlet. It is easy to cool it down but hard to maintain it. To improve an ability of maintenance, a total enclosed type traction motor is already developed and used in abroad, not an opne type. So we developed a total enclosed type traction motor which will be used in domestic and abroad EMU. We tried to reduce a weight and a size compared with the abroad one. In contrast with open type traction motors which cool off inside of motors, total enclosed motors cool down by cooling exterior frame of motors. In this case, cooling fins or air fan blowing to the exterior of motors are applied. The total enclosed type traction motor developed by us have two housing to block the foreign substance into inner of a motor and have two cooling fan to easy to reduce a heat happened at a coil. In this paper, design of a cooling structure of the total enclosed traction motor developed twice and performance verification through test will be discussed.

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A study of traction motor for Bimodal low floor vehicle (바이모달 저상굴절차량용 견인전동기 설계에 관한 고찰)

  • Choi, Yeol-Jun;Park, Yeong-Ho;Choi, Jong-Mook;Mok, Jai-Kyun
    • Proceedings of the KSR Conference
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    • pp.911-915
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    • 2007
  • This paper deal with the design concept of traction motor for Bimodal low floor vehicles that are CNG(Compressed Natural Gas) hybrid bus and Fuel-cell bus. The design concept of the traction motor is studied in terms of electrical characteristics and mechanical construction. Finally, this paper introduces the characteristic of the traction motor for low floor vehicles which are applied in the world, and mentioned the detail design concept of traction motor.

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Performance Analysis of the Linear Induction Motor for the Deep-Underground High-Speed GTX

  • Park, Chan-Bae;Lee, Hyung-Woo;Lee, Ju
    • Journal of Electrical Engineering and Technology
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    • v.7 no.2
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    • pp.200-206
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    • 2012
  • In order to develop a deep-underground great train express (GTX) in South Korea, the specifications decision and development of a traction control system (including an inverter and a traction motor), which considers a variety of route conditions, must be advanced. In this study, we examined the running resistance properties of a high-speed traction system based on a variety of tunnel types and vehicle organization methods. Then, we studied the power requirements necessary for the traction motor to maintain balanced speed in the high-speed traction system. From this, we determined the design criteria for the development of a high-speed traction system for use in the deep-underground GTX. Finally, we designed a linear induction motor (LIM) for a propulsion system, and we used the finite element method (FEM) to analyze its performance as it travelled through deep-underground tunnels.

The Analysis of Strength and Driving Characteristic according to Design of Traction Motor for 8200 Electric Locomotive Series (8200호대 전기기관차 견인전동기의 설계에 따른 강도 및 운전특성 해석)

  • Lim, Chae-Woong;Yun, Cha-Jung;Kim, Jae-Moon
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.64 no.1
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    • pp.165-170
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    • 2015
  • In this paper, The strength and driving characteristics of it were investigated according to developing the traction motor for 8200 electric locomotive series. For this purpose, Flux density strength was analyzed and then structural strength was investigated such as a stator frame, design of the rotor shaft bearing according to the design process. In addition, the traction motor operating point was analyzed according to slip frequency variation at a power source frequency. As the results of analysis on torque-speed characteristic curve, we was confirmed that traction motor was controlled as torque control prior to motor speed 1610[rpm], power control between 1610[rpm] and 2500[rpm] and breakdown torque control more than motor speed 2500[rpm].

Development of Traction Unit for 2-motor Driven Electric Vehicle

  • Park, Jung-Woo;Koo, Dae-Hyun;Kim, Jong-Moo;Kim, Heung-Geun
    • Proceedings of the KIPE Conference
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    • pp.950-954
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    • 1998
  • This paper describes a development of traction unit for 2-motor driven electric vehicle (EV). The traction unit is consisted with an interior permanent magnet synchronous motor (IPMSM), a reduction gear and an inverter for electric vehicle that is driven by 2 motors without differential gear. For traction unit, prototype IPMSM and inverter have been developed. The IPMSM was designed by CAD program that was developed with both equivalent circuit method and FEM. Also the inverter was developed to drive 2 motors with 6 legs IGBT switches in a control board. The vector control algorithm was implemented with maximum torque control method in the constant torque region and field weakening control method in the constant power region considering inverter capacity. To verify that the traction unit is more high efficiency and has more high power density than a traction unit with induction motor with the same power, we would like to show the results about the design and analysis of the IPMSM and the experiment results about the traction unit.

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A Study on the Development of Traction Motor for Electric Railway: Insulation System Design & Performance Test

  • Wang, Jong-Bae
    • Transactions on Electrical and Electronic Materials
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    • v.2 no.4
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    • pp.19-23
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    • 2001
  • In this paper, design considerations and manufacturing procedure of 200 class insulation system with polyimide(Kapton) main insulation and silicone resin VPI process on the traction motor thor EMU will be reviewed. The performance test and the long life evaluation test that prove stability and reliability of Insulation system for traction motor will also be introduced.

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Air-Barrier Width Prediction of Interior Permanent Magnet Motor for Electric Vehicle Considering Fatigue Failure by Centrifugal Force

  • Kim, Sung-Jin;Jung, Sang-Yong;Kim, Yong-Jae
    • Journal of Electrical Engineering and Technology
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    • v.10 no.3
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    • pp.952-957
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    • 2015
  • Recently, the interior permanent magnet (IPM) motors for electric vehicle (EV) traction motor are being extensively researched because of its high energy density and high efficiency. The traction motor for EV requires high power and high efficiency at the wide driving region. Therefore, it is essential to fully consider the characteristics of the motor from low speed to high-speed driving regions. Especially, when the motor is driven at high speed, a significant centrifugal force is applied to the rotor. Thus, the rotor must be stably structured and be fully endured at the critical speed. In this paper, aims to examine the characteristics of the IPM motor by adjusting the width of air-barrier according to the permanent magnet position which is critical in designing an IPM motor for EV traction motors and to conduct a centrifugal force analysis for grasping mechanical safety.

The influence of transom pipe gap on the resonance response in motorized bogie and traction motor system (트랜섬 파이프 간격이 동력대차-견인전동기간 강체 모드 공진응답에 미치는 영향에 관한 연구)

  • Kim, Jaehwan;Song, Seeyeop;Lim, Hyosuk
    • The Journal of the Acoustical Society of Korea
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    • v.38 no.3
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    • pp.340-343
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    • 2019
  • In this paper, a problem of mechanical resonance between traction motor's rigid body mode and traction motor's excitation force is introduced, and a bogie design variable affecting the control of resonance response is reviewed numerically. To solve the resonance problem in rotating machinery with variable rotational speeds, resonance frequency should be out of rotational machine's operation range or dynamic stiffness of structures should be increased for resonance response enough to be low. In general, operation range of a traction motor is from 0 r/min to 4800 r/min. It is not possible that all bogie modes are more than 80 Hz. Therefore, it is very important to find design factor affecting resonance response of traction motor's rigid body modes. It is found that key design variable is the gab between transom pipes from finite element analysis. The larger gab is, the higher resonance response when resonance between traction motor's excitation force and traction motor's rigid body mode is happened.

A Controller Design for Speed Control of the Switched Reluctance Motor in the Train Propulsion System (열차추진시스템에서 Switched Reluctance Motor의 속도제어를 위한 제어기 설계)

  • Kim, Sung-Soo;Kim, Min-Seok;Lee, Jong-Woo
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.60 no.3
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    • pp.138-143
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    • 2011
  • Electric locomotive is adapted to high speed driving and mass transportation due to obtaining high traction force. The electric locomotive is operated by motor blocks and traction motors. Train speed is controlled by suppling power from motor blocks to traction motors according to reference speed. Speed control of the electric locomotive is efficient by spending energy between motor blocks and traction motors. Currently, switched reluctance motors have been studied because the efficient is higher than induction motors. In this paper, model of the switched reluctance motor is presented and the PID controller is applied to the model for the speed control by using Simulink. Asymmetry converter is used for real-time control and system performance is demonstrated by simulating the speed of switched reluctance motor including PID controller.

Design & system construction of insulation on the traction motor for EMU (철도차량용 견인전동기의 절연설계 및 절연시스템 구성)

  • 왕종배;홍선호;조연옥;김명룡
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • pp.194-197
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    • 2001
  • Traction motors driven by high speed switching inverters is demanded higher operating temperature, severe duty cycles, higher starting current, frequent voltage transients and finally severe environmental exposure. For applications to inverter duty, traction motors needs a special insulation system, which has characteristics of increased bond strength, lower operating temperature and higher turn-to-turn insulation. In this paper, design considerations and manufacturing procedure of 200 Class insulation system with polyimde(Kapton) main insulation and silicone resin VPI process on the traction motor for EMU will be reviewed. And performance test and long life evaluation test which prove stability and long life evaluation test which prove stability and reliability of insulation system for traction motor will be introduced.

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