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電氣學會論文誌. The Transactions of the Institute of Elec... 24건

  1. [해외논문]   The Self-gap-Detecting Electromagnetic Suspension System with Robustness Against Variation of Coil Resistance  

    Morishita, Mimpei (Power and Industrial Systems R&D Center, Toshiba Corp. ) , Itoh, Hiroaki (Power and Industrial Systems R&D Center, Toshiba Corp.)
    電氣學會論文誌. The Transactions of the Institute of Electrical Engineers of Japan. D, A publication of industry applications society. D, 産業應用 v.126 no.10 ,pp. 1280 - 1285 , 2006 , 0913-6339 ,

    초록

    There are few self-gap-detecting electromagnetic suspension (EMS) systems robust enough against variation of coil resistance. The authors succeeded in providing much robustness against the variation of coil resistance with a self-gap-detecting EMS system. An adaptive control for coil resistance and an exciting voltage compensator for differences between the coil resistances were applied to the self-gap-detecting EMS system. This paper proposes this new self-gap-detecting technique. The adaptive controller and the exciting voltage compensator will be explained. The experimental results will show a validity of the technique.

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    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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  2. [해외논문]   Polarized Linear Motor Combined With Levitation Actuators Working in a Partial Vacuum Environment—Application to Swissmetro  

    Cassat, Alain (Ecole Polytechnique Fédérale de Lausanne, EPFL-STI-IPR-LAI, ELG Ecublens ) , Espanet, Christophe (University of Franche-Comté, France, Laboratory of Research in Electrical Engineering and Systems ) , Bourquin, Vincent (Numexia, PSE-A ) , Hagmann, Pascal (Ecole Polytechnique Fédérale de Lausanne, EPFL-STI-ISE-LIN, ME Ecublens ) , Jufer, Marcel (Ecole Polytechnique Fédérale de Lausanne, EPFL-STI-IPR-LAI, ELG Ecublens)
    電氣學會論文誌. The Transactions of the Institute of Electrical Engineers of Japan. D, A publication of industry applications society. D, 産業應用 v.126 no.10 ,pp. 1286 - 1292 , 2006 , 0913-6339 ,

    초록

    Worldwide high speed Maglev (> 400km/h) developments refer to Maglev such as the Japanese JR-Maglev MLX, the German Transrapid and the USA Inductrack Maglev. Other world projects exist such as the Japan HSST ( 400km/h).The authors investigate new possibilities to combine both the propulsion and the levitation. In order to minimize the heat due to the motor levitation and guidance losses, a polarized excitation is proposed. The use of permanent magnet NdFeB for the excitation is still not applied for high speed Maglev, requiring mechanical power greater than 6MW. Such a solution only appears in Urban Rapid Transit Maglev ( 3 and the General Atomic Urban Maglev.For Swissmetro, the authors study the polarized inductors for the levitation, implying a polarized synchronous linear motor. The polarization is obtained with permanent magnets NdFeB. This paper presents some key issues related to such technical choices. The motor design is described and the power balance is presented. The thermal behavior is analyzed using a numerical platform of the complete vehicle-tunnel system, based on computation of the air flow dynamic.

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    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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  3. [해외논문]   Prototype of Self-Sensing Magnetic Bearing for Liquid Nitrogen Pump  

    Eguchi, Seiji (Kyusyu Institute of Technology ) , Komori, Mochimitsu (Kyusyu Institute of Technology ) , Okuhata, Taro (Kyusyu Institute of Technology)
    電氣學會論文誌. The Transactions of the Institute of Electrical Engineers of Japan. D, A publication of industry applications society. D, 産業應用 v.126 no.10 ,pp. 1293 - 1297 , 2006 , 0913-6339 ,

    초록

    Recently, pumps used in extremely low temperature such as 77K are found to be necessary. They are expected to use for rocket engines and hydrogen stations for fueled vehicles. Generally, conventional magnetic bearings do not work in the extremely low temperature. Therefore, we have studied magnitic bearings for these pumps. Self-sensing technique is tried to apply to magnetic bearings. If self-sensing magnetic bearings were made, we could apply the self-sensing magnetic bearing to liquid nitrogen pumps. In this paper, we propose a prototype self-sensing magnetic bearing and study the static and dynamic characteristics. The dynamic characteristics in the air and in liquid nitrogen are also discussed.

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    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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  4. [해외논문]   Simulation of Controller Characteristics Applied to Magnetic Levitation for an X-Y Linear Synchronous Motor  

    Inui, Shigeri (College of Engineering, Nihon University ) , Inubushi, Nao (College of Engineering, Nihon University ) , Ohira, Yoichi (College of Engineering, Nihon University)
    電氣學會論文誌. The Transactions of the Institute of Electrical Engineers of Japan. D, A publication of industry applications society. D, 産業應用 v.126 no.10 ,pp. 1298 - 1302 , 2006 , 0913-6339 ,

    초록

    We propose a magnetic levitation system for an X - Y Linear Synchronous Motor (LSM). This system uses an X - Y LSM armature as the primary side and a 4-pole-type yoke hybrid electromagnet for the secondary side. There are some advantages in using a magnetic levitation system for an X - Y LSM, including decreased friction and abrasion due to the non-contacting operation. In this paper, I-PD(integral- proportional-derivative) control was used for the 4-pole-type yoke hybrid electromagnet, and the controller was designed with a Kessler form, a Manabe form, and with state feedback control. We compared the characteristics associated with changes in the gap for the different cases.

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    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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  5. [해외논문]   Simultaneous Motion and Normal Forces Control of Flat Permanent Magnet Linear Synchronous Motors Employed as Actuators  

    Martí (IDOM, Advance Design and Analysis Department ) , nez, Gonzalo (TECNUN (University of Navarra) ) , Martí (TECNUN (University of Navarra) ) , nez-Iturralde, Miguel (TECNUN (University of Navarra) ) , Castelli, Marcelo (TECNUN (University of Navarra)) , Rico, André , s Garcí , a , Fló , rez, Juliá , n
    電氣學會論文誌. The Transactions of the Institute of Electrical Engineers of Japan. D, A publication of industry applications society. D, 産業應用 v.126 no.10 ,pp. 1303 - 1307 , 2006 , 0913-6339 ,

    초록

    This paper analyses the dynamic performance of flat single-sided Permanent Magnet Linear Synchronous Motors (PMLSMs) employed as actuators, when the alternate motion and the attractive or repulsive forces between the primary and the secondary are controlled simultaneously. The control of the normal forces when the motor is in dynamic operation provides multiples advantages, such as the reduction of friction forces and audible noise, and the minimization of mechanical stresses of guides and supports. Two PMLSM prototypes, one with a ferromagnetic primary core, and another with a non-magnetic armature, were tested under these special operation conditions. A modified Rotor Flux Oriented Control (RFOC) strategy was employed to carry out the tests, and several conclusions were taken. The main purposes of this study are to show the feasibility of the simultaneous control of motion and normal forces employing vector control techniques and to analyse the dynamic response of the prototypes.

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    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

    Fig. 1 이미지
  6. [해외논문]   Simple and Robust Indirect Thrust Control for Positioning of Linear Induction Motors  

    Martí (TECNUN, University of Navarra ) , nez-Iturralde, Miguel (IDOM, Advance Design and Analysis Department ) , Martí (TECNUN, University of Navarra ) , nez, Gonzalo (TECNUN, University of Navarra ) , Castelli, Marcelo (TECNUN, University of Navarra) , Rico, André , s Garcí , a , Fló , rez, Juliá , n
    電氣學會論文誌. The Transactions of the Institute of Electrical Engineers of Japan. D, A publication of industry applications society. D, 産業應用 v.126 no.10 ,pp. 1308 - 1313 , 2006 , 0913-6339 ,

    초록

    Dealing with position control of Linear Induction Motors (LIM), most strategies in bibliography are based on Secondary Flux Oriented Control (SFOC) and Direct Thrust Control (DTC). However, SFOC of linear induction motors needs complex identification methods to compensate parameter variation during operation, mainly due to local heating and end-effects. On the other hand, DTC based methods for LIMs present thrust ripple and have problems at low and zero speeds.In this paper, a new Indirect Thrust Control (ITC) based strategy for position control of linear induction motors that makes up for these drawbacks is presented. The position control loop design methodology and the method for automatic adjustment of compensators are described. Experimental results are presented to evaluate the performance and sensitivity of the control strategy. Finally, some conclusions are drawn about the applicability of the new algorithm that demonstrate the main advantages versus SFOC and DTC.

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    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

    Fig. 1 이미지
  7. [해외논문]   Evolution from MEMS-based Linear Drives to Bio-based Nano Drives  

    Fujita, Hiroyuki (CIRMM, Institute of Industrial Science, The University of Tokyo)
    電氣學會論文誌. The Transactions of the Institute of Electrical Engineers of Japan. D, A publication of industry applications society. D, 産業應用 v.126 no.10 ,pp. 1314 - 1318 , 2006 , 0913-6339 ,

    초록

    Dealing with position control of Linear Induction Motors (LIM), most strategies in bibliography are based on Secondary Flux Oriented Control (SFOC) and Direct Thrust Control (DTC). However, SFOC of linear induction motors needs complex identification methods to compensate parameter variation during operation, mainly due to local heating and end-effects. On the other hand, DTC based methods for LIMs present thrust ripple and have problems at low and zero speeds.In this paper, a new Indirect Thrust Control (ITC) based strategy for position control of linear induction motors that makes up for these drawbacks is presented. The position control loop design methodology and the method for automatic adjustment of compensators are described. Experimental results are presented to evaluate the performance and sensitivity of the control strategy. Finally, some conclusions are drawn about the applicability of the new algorithm that demonstrate the main advantages versus SFOC and DTC.

    원문보기

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    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

    Fig. 1 이미지
  8. [해외논문]   Robust H∞ DIA Control of Levitated Steel Plates  

    Namerikawa, Toru (Division of Electrical Engineering and Computer Science, Graduate School of Natural Science and Technology, Kanazawa University ) , Mizutani, Daisuke (Department of Mechanical Engineering, Nagaoka University of Technology ) , Kuroki, Shintaro (Department of Mechanical Engineering, Nagaoka University of Technology)
    電氣學會論文誌. The Transactions of the Institute of Electrical Engineers of Japan. D, A publication of industry applications society. D, 産業應用 v.126 no.10 ,pp. 1319 - 1324 , 2006 , 0913-6339 ,

    초록

    This paper deals with an application of H ∞ DIA control to the magnetically levitated steel plates. Our goal in this research is to suspend two thin steel plates stably by using four electromagnets without any physical contacts. We apply the robust H ∞ DIA control approach to the magnetically levitated steel plates. The H ∞ DIA control problem treats a mixed Disturbance and an Initial state uncertainty Attenuation and it is expected to provide a good transient property to a control system. Experimental results show that the proposed robust control approach is effective for suppressing an elasticity vibration of steel plates.

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    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

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  9. [해외논문]   Electrostatically Controlled Linear Inchworm Actuator for Precise Step and Parallel Motion  

    Konishi, Satoshi (Ritsumeikan University ) , Oshima, Akiyoshi (Ritsumeikan University ) , Kinoshita, Nobuhito (Ritsumeikan University ) , Kumagaya, Ikuo (Ritsumeikan University ) , Kishi, Takashi (Ritsumeikan University)
    電氣學會論文誌. The Transactions of the Institute of Electrical Engineers of Japan. D, A publication of industry applications society. D, 産業應用 v.126 no.10 ,pp. 1325 - 1329 , 2006 , 0913-6339 ,

    초록

    This paper presents electrostatically controlled linear inchworm actuator for precise step and parallel motion. Electrostatically controlled linear inchworm actuator can provide a high accuracy (nm order), a large stroke (mm order) and parallel motion of multi sliders. Micro electro mechanical systems technology allows batch fabricated multi sliders. Batch-fabricated multi sliders can be driven by a proposed strategy based on an inchworm motion. Electrostatically controlled linear inchworm actuator employs an electrostatic clutch mechanism in order to control motion transmission from a piezoelectric oscillator to multi sliders for the inchworm motion. Independent control of motions of multi sliders arranged on a single driving system with the piezoelectric oscillator will be presented. This paper reports design, fabrication and demonstration of a proposed system, followed by a prospect of our study toward dynamic gain equalizer as optical application.

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    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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  10. [해외논문]   Optimal Design Strategy for a Novel Linear Electromechanical Actuator  

    Lebedev, Anton (Eindhoven University of Technology ) , Lomonova, Elena (Eindhoven University of Technology ) , Laro, Dick (Delft University of Technology ) , Vandenput, André (Eindhoven University of Technology)
    電氣學會論文誌. The Transactions of the Institute of Electrical Engineers of Japan. D, A publication of industry applications society. D, 産業應用 v.126 no.10 ,pp. 1330 - 1335 , 2006 , 0913-6339 ,

    초록

    The paper presents a design procedure for a novel linear electromechanical actuator from a basic concept to a prototype with optimized characteristics. The actuator itself is a complex electromechanical system combining features of the active magnetic bearing (suspended mass in the order of 0.3kg) and the linear Lorentz actuator (long stroke range—50mm). During the design procedure the analysis and selection of the magnetic materials are carried out. A parametric search with respect to main design variables is performed. Special attention is paid to the development of the analytical model that is an essential tool for future optimization. A design procedure leads to modifications in dimensions and coils arrangement. An improved prototype is designed and manufactured. The results obtained by the finite element method (FEM) and analytical modeling are validated by measurements.

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    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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