• Title/Summary/Keyword: Contact-less Power Supply

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3D Finite Element Analysis of Contact-less Power Supply with Linear Servo Motor

  • Woo, Kyung-Il;Park, Han-Seok;Park, Hyeong-Beom
    • Journal of Advanced Marine Engineering and Technology
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    • v.31 no.2
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    • pp.190-196
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    • 2007
  • This paper presents the 3D finite element analysis of the Contact-less Power Supply(CPS) with linear servo motor. The primary, secondary self and leakage inductances of the contact-less power supply and the capacitances of a resonant circuit are calculated by the finite element analysis using current source. The voltage source is used to do accurate analysis of the characteristics of the contact-less power supply. The CPS with the linear servo motor is proposed. The characteristics analysis of the contact-less power supply considering the linear servo motor is done.

Efficiency Characteristics of Half-bridge Series Resonant Converter for the Contact-less Power Supply (Half-bridge 직렬공진 컨버터 적용 무접점 전원장치 효율특성)

  • Lee, Hyun-Kwan;Song, Hwan-Kook;Kim, Eun-Soo;Kim, Yoon-Ho
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.56 no.5
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    • pp.884-891
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    • 2007
  • Comparing with the conventional transformer without the air gap, a contact-less transformer with the large air-gap (4.8cm) between the long primary winding and the secondary winding has the increased leakage inductance and the reduced magnetizing inductance. By the increased leakage inductance and the reduced magnetizing inductance on the primary of the contact-less transformer, a good deal of the primary current circulates through magnetizing inductance, which results in a massive loss and the high voltage gain characteristics for load variations in contact-less power supply (CPS). To consider these characteristics, in this paper, the efficiency characteristics of the contact-less power supply using a series resonant converter is presented, described and verified through theoretical analysis, computer simulation and experimental test of 2.5kW prototype.

Contact-less Power Supply Using Series-Parallel Rasonant Converter ($\cdot$병렬 공진형컨버터를 이용한 비접촉전원)

  • Kim E. S.;Goo D. H.;Kim J. M.;Kang D. H.;Shin B. C.;Kong Y. S.;Yang S. C.
    • Proceedings of the KIPE Conference
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    • 2002.11a
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    • pp.103-107
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    • 2002
  • A contact-less power supply system (CPS) allows electrical energy to supply to mobile consumers without any electrical or mechanical contact. CPS works in the same principle as a transformer, with the track litz cable forming the primary circuit and the pickup as the secondary. The track power supply generates the high frequency alternating current in the track cable. The captured AC magnetic field generated by the track conductors produces electrical energy in the pickup coil and the pickup rectifier converts the high frequency AC power to DC while regulating the power to the load. This paper presents the theoretical analysis, simulation and experiment리 results of the series-parallel resonant converter working as contact-less power supply system.

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The characteristic analysis of contact-less Power supply by 3D finite element method

  • Park, Han-Seok;Cho, Yun-Hyun;Jung, Hong-Sub;Woo, Kyung-il;Kim, Kyung-Ho
    • Journal of Advanced Marine Engineering and Technology
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    • v.28 no.1
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    • pp.145-151
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    • 2004
  • This paper proposes the calculation method of magnetic coupling coefficient of contact-less power supply by the 3D finite element method with a variation of the secondary core position. The primary, secondary self and leakage inductances and the capacitances of a resonant circuit are calculated by the finite element analysis results. The magnetic coupling coefficients are obtained also. The power factors are obtained by simulation for the magnetic coupling coefficients and compared.

An Analysis on the Characteristics of the Contact-less Power Supply (무접점 전원장치의 특성분석)

  • Lee, Hyun-Kwan;Lee, Gi-Sik;Chung, Bong-Geun;Kang, Sung-In;Kong, Young-Su;Kim, Eun-Soo;Kim, Yoon-Ho
    • Proceedings of the KIEE Conference
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    • 2006.07b
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    • pp.919-922
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    • 2006
  • Comparing with the conventional transformer without the air gap, a contact-less transformer with the large air-gap (4.8cm) between the long primary winding and the secondary winding has the increased leakage inductance and the reduced magnetizing inductance. By the increased leakage inductance and the reduced magnetizing inductance on the primary of the contact-less transformer, a good deal of the primary current circulates through magnetizing inductance, which results in a massive loss in contact-less power supply (CPS). In this paper, the efficiency characteristics of the contact-less power supply using a series resonant converter is analyzed and simulated. The results are verified on the simulation based on the theoretical analysis and the 1.8kW experimental prototype.

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The Metal Detection using Primary Current in Contact-less Power Supply (무접점 전원공급 시 1차측 전류를 이용한 금속 물질 검출에 관한 연구)

  • Kim, Yu-Seok;Yu, Joo-Hee;Kim, Choon-Sam;Sung, Won-Ki
    • The Transactions of the Korean Institute of Power Electronics
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    • v.17 no.5
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    • pp.445-452
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    • 2012
  • The impurity detection method applied to existing discriminated the normality(R, L, C) and impurity(Metal) load using mutual RFID/ID method in the contactless power supply in which the primary side and the secondary side are completely separation by using the contactless transformer. However, this kind of system is caused the high cost of the system and complexity of control. Therefore, in this paper was proposed the contact-less power transfer using the primary current that determine normality or impurity load by compare the primary current Amplitude to reference quantity value and design the 3[W] contact-less power transfer and conduct an experiment for demonstrate the validity.

Contactless Power Supply for DC Power Service in Hybrid Home Generation System (직류수용가 서비스를 위한 무접점 전원장치)

  • Kang, J.W.;Song, H.K.;Kim, J.H.;Kim, E.S.;Kim, Y.H.
    • Proceedings of the KIPE Conference
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    • 2007.07a
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    • pp.104-107
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    • 2007
  • Among the alternative energy sources, the solar energy is recognized as an important energy source and its application is increasing. Especially in future, the hybrid solar energy generation system with battery will be widely used as an independent distributed power generation system. In this paper, a solar power hybrid home generation system using a contact-less power supply (CPS) that can transfer an electric power without any mechanical contact by using magnetic coupling instead of the power transfer by directly supplying the DC power to the home electric system is proposed. The proposed system consists of a ZVS boost converter, a half bridge LLC resonant converter and contact-less transformer.

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A Contact-less Power Supply for Photovoltaic Power Generation System (태양광 발전 시스템을 위한 무접점 전원장치)

  • Lee, Hyun-Kwan;Kong, Young-Su;Kim, Yoon-Ho;Lee, Gi-Sik;Kang, Sung-In;Chung, Bong-Geun;Kim, Eun-Soo
    • The Transactions of the Korean Institute of Power Electronics
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    • v.11 no.3
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    • pp.216-223
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    • 2006
  • The high efficiency full-bridge LLC resonant converter using a contact-less transformer Is proposed for the photovoltaic power generation system. For the series resonance with a series capacitor, the LLC resonant converter utilizes the leakage inductance and magnetizing inductance of a contact-less transformer Unlike the conventional series resonant converter operated to the continuous resonant current at above resonance frequency, the proposed converter operates to the discontinuous resonant current at the narrow frequency control range below resonance frequency. Due to the discontinuous mode resonant current, the proposed converter can be achieved the zero voltage switching (ZVS) in the primary switches and the zero current switching (ZCS) in the secondary rectification diodes without my auxiliary circuit. In this paper, the experimental results of the proposed full-bridge LLC resonant converter using a contact-less transformer are verified on the simulation based on the theoretical analysis and the 150W experimental prototype.

Contactless Power Supply for DC Power Service in Hybrid Home Generation System (수용가 직류 서비스를 위한 무접점 전원장치)

  • Chung, Bong-Geun;Kang, Sung-In;Kim, Yoon-Ho;Kim, Eun-Soo
    • The Transactions of the Korean Institute of Power Electronics
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    • v.12 no.2
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    • pp.174-182
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    • 2007
  • Among the alternative energy sources, the solar energy is recognized as an important energy source and its application is increasing. Especially in future, the hybrid solar energy generation system with battery will be widely used as an independent distributed power generation system. In this paper, a solar power hybrid home generation system using a contactless power supply (CPS) that can transfer an electric power without any mechanical contact by using magnetic coupling instead of the power transfer by directly supplying the DC power to the home electric system is proposed. The proposed system consists of a ZVS boost converter, a half bridge LLC resonant converter and contact-less transformer.

A Contact-less Power Supply using LLC resonant converter for Photovoltaic Power Generation System (태양광 발전 시스템을 위한 LLC 직렬공진컨버터 적용 무접점 전원장치)

  • Lee, H.K.;Lee, G.S.;Kang, S.I.;Kong, Y.S.;Kim, E.S.;Kim, Y.H.
    • Proceedings of the KIEE Conference
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    • 2006.04b
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    • pp.347-350
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    • 2006
  • The high efficiency full-bridge LLC resonant converter using a contact-less transformer is proposed for the photovoltaic power generation system. For the series resonance with a series capacitor, the LLC resonant converter utilizes the leakage inductance and magnetizing inductance of a contact-less transformer. Unlike the conventional series resonant converter operated to the continuous resonant current at above resonance frequency, the proposed converter operates to the discontinuous resonant current at the narrow frequency control range below resonance frequency. Due to the discontinuous mode resonant current, the proposed converter can be achieved the zero voltage switching (ZVS) in the primary switches and the zero current switching (ZCS) in the secondary rectification diodes without any auxiliary circuit. In this paper, the experimental results of the proposed full-bridge LLC resonant converter using a contact-less transfonner are verified on the simulation based on the theoretical analysis and the 150W experimental prototype.

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