• Title/Summary/Keyword: Induction pump

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Development of High Performance LonWorks Fieldbus Control Modules for Network-based Induction Motor Control (네트워크 기반 유도전동기 제어를 위한 고성능 LonWorks 제어모듈 개발)

  • Kim, Jung-Gon;Hong, Won-Pyo
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2005.05a
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    • pp.319-324
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    • 2005
  • The interface between host processor and the ShortStack Micro Server may be a Serial Communication Interface(SCI). The LonWorks control module with a high performance is developed, which is composed of the 8 bit PIC Microprocessor for host processor and the smart neuron chip for the ShoretStack Micro Server. This intelligent control board is verified as proceeding the various function tests from experimental system with an boost pump and inverter driving systems. It is also confirmed that the developed control module provides stably 0-10VDC linear signal to the input signal of inverter driving system for varying the induction motor speed. Thus, the experimental results show that the fabricating intelligent board carried out very well the various functions in the wide operating ranges of boost pump system. This developed control module expect to apply to industrial fields to require the comparatively exact control and monitoring such as multi-motor driving system with inverter, variable air volume system and the boost pump water supply systems.

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A Study on the Burning Damage of a Driving Motor for Warship Fire Pump (함정용 소화펌프 구동 모터의 소손현상 개선에 관한 연구)

  • Jeong, Sang-Hu
    • Journal of Advanced Marine Engineering and Technology
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    • v.31 no.8
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    • pp.1035-1041
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    • 2007
  • An improvement of driving motor burning damages on a couplingless type warship fire pump is studied. The pump consists of an induction motor a pump-motor shaft and a volute type impeller. The burning damage had occured by changing the material of the pump-motor shaft from carbon steel(SM 45C) to stainless steel(STS 316) for improving anti-corrision properity in sea water. It is shown that a material change on the pump-motor shaft can reduce the efficiency of driving motor and may cause motor burning in the process of pump development stage. This kind of motor burning problem can be solved by increasing the efficiency of the motor and changing the geometry of the inner parts.

Effects of Resistivity Variation in a Very Low Temperature on the Characteristics of Induction Motors

  • Kim, Beom Jin;Kim, Jin Sung;Park, Gwan Soo
    • Journal of international Conference on Electrical Machines and Systems
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    • v.2 no.1
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    • pp.45-50
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    • 2013
  • This paper presents design of induction motor in very low temperature for LNG main cargo pump and comparison of two motors. One is the motor for using in room temperature and another is the motor for using very low temperature. This paper designs with Equivalent circuit Method and uses Finite Element Method to analysis. The motor for very low temperature considers variation of coil resistivity due to temperature change and compare torque characteristic with the motor for room temperature. Design element of motor for very low temperature considers resistivity variation following temperature change on going through this paper. The result shows that two types of motors are almost same torque curve characteristic even though they are not the same environment.

Electromagnetic and Thermal Analysis of Squirrel Gage Canned Induction Motor for SMART Main Coolant Pump (SMART용 냉각재순환펌프에 장착되는 농형유도전동기의 전자기 및 열해석)

  • Huh, Hyung;Koo, Dae-Hyun;Kang, Do-Hyun
    • Proceedings of the KIEE Conference
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    • 1999.07a
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    • pp.308-311
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    • 1999
  • A squirrel cage canned induction motor for the main coolant pump of the integral reactor, SMART was designed, manufactured and tested. The motor was first designed using the equivalent circuit theory to determine major dimensions and then finalized through finite element analyses for electromagnetic and thermal characteristics. In order to verify the design methodology, a reduced scale canned induction motor was manufactured and tested. The experimental results have shown a good agreement with the analysis results.

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Flux Density Analysis of Linear Induction Electromagnetic Pumps for Liquid Metal (액체 금속 구동용 선형유도전자램프의 자속밀도 분포 해석)

  • Jang, Nam-Young;Eun, Jae-Jung;Park, Tae-Bong;Choi, Hun-Gi;Yoo, Geun-Jong
    • Proceedings of the KIEE Conference
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    • 2003.07b
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    • pp.906-908
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    • 2003
  • A Linear induction electromagnetic(EM) pump of liquid metal fast breeder reactor(LMFBR) is used for the purpose that the liquid metal of high temperature is transported by EM force. This paper evaluates magnetic flux density necessary for transporting liquid metal, using analytical model of the linear induction EM pump. Using the 2-D finite element method(2-D FEM), magnetic flux density is estimated in consideration of a geometric model, electric parameter, and velocity of liquid metal. From the viewpoint of hydrodynamics, the results can be used for flow analysis of the liquid metal.

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Experiments and Characteristic Analysis of Electromagnetic Pump using LIM (LIM을 이용한 전자기 펌프의 특성해석 및 실험)

  • Jeon, Mun-Ho;Kim, Min-Seok;Kim, Jung-Hyun;Kim, Chang-Eob
    • Proceedings of the KIEE Conference
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    • 2006.04b
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    • pp.161-163
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    • 2006
  • This paper presents the experiment and the characteristics analysis of an electromagnetic pump using linear induction motor(LIM). The characteristics of LIM pump are analyzed solving the hydrodynamic equation at constant magnetic flux. The molten zinc is used in the experiment and the experimental results are compared with the analysis.

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Design of SRM and Controller for Hydraulic Pump (유압유니트용 SRM 및 제어기 설계)

  • Kim, Bong-Chul;Kim, Tai-Hyung;Lee, Dong-Hee;Ahn, Jin-Woo
    • Proceedings of the KIEE Conference
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    • 2004.10a
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    • pp.113-115
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    • 2004
  • This paper presents a design and characteristics analysis of an SRM drive for a hydraulic pump application. A hydraulic pump is used AC Induction motor in conventional applications. The suggested drive system supplies required pressure on-line for energy saving, while conventional one holds the pressure during stand by period. The prototype motor is designed and tested through simulation and experiments.

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Characteristics Analysis of Electromagnetic Pump using LIM (LIM을 이용한 전자기 펌프의 특성해석)

  • Cha, Jea-Keul;Jeon, Mun-Ho;Lee, Jong-Ung;Kim, Chang-Eob
    • Proceedings of the KIEE Conference
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    • 2005.04a
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    • pp.80-82
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    • 2005
  • This paper presents the characteristics analysis of an electromagnetic pump using a linear induction motor(LTM). The characteristics of the pump for three molten metals Is analyzed by the magneto hydro dynamics: flow velocity, flow mass and etc. The result of the analysis is that the flow velocity for three molten metals is over 0.3[m/s] at the center of duct.

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Flow Analysis of Molten Metals in Electromagnetic Pump using LIM (선형유도전동기를 이용한 전자기 펌프내 액체 금속의 유동해석)

  • Cha, Jea-Keul;Jeon, Mun-Ho;Kim, Chang-Eob;Sung, Bo-Ram-Chan;Lim, Hyo-Jae;Lee, Seok-Won
    • Proceedings of the KIEE Conference
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    • 2005.07b
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    • pp.1318-1320
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    • 2005
  • This paper presents the characteristics analysis of an electromagnetic pump using the linear induction motor(LIM). The characteristics of the pump are analyzed solving two equations : the electromagnetic equation and hydrodynamic one.

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An Experimental and Numerical Analysis of Flow of Electromagnetic Pump for Molted Metal Transport (용융금속 이송용 전자기 펌프의 유동해석 및 실험)

  • Choi, Jae-Ho;Lim, Hyo-Jae;Kim, Chang-Eob;Kwon, Jung-Tae
    • Proceedings of the KSME Conference
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    • 2007.05b
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    • pp.2621-2625
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    • 2007
  • This study aims at analyzing the flow characteristics of the electromagnetic pump using a linear induction motor (LIM) for transferring molten metals. The flow characteristics of the pump are simulated by magnetohydrodynamic(MHD) program. In this system, the LIM is used for transferring molten metal by electromagnetic force. The molten metal is treated as the secondary part of the LIM. Since the LIM produces an electromagnetic force in the duct, the molten metal can flow from the furnace to the reservoir. The flow characteristics of the pump are analyzed using MHD program for magnetic field of 0.1[T] in duct. In order to prove the analysis, we made a prototype electromagnetic pump using LIM.

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