• 제목/요약/키워드: 홍정표

검색결과 622건 처리시간 0.024초

레일진동에 따른 자기부상열차의 부상 및 주행 특성 고찰 (A study on the Levitation and Running Characteristics of MAGLEV for rail vibration)

  • 임달호;홍정표;정인성
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1994년도 추계학술대회 논문집 학회본부
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    • pp.107-110
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    • 1994
  • This paper focuses on the dynamic interaction between travelling vehicle and flexible guideway rail system. From a numerical analysis on the simply supported beam vibration excited by a sequence of magnetic force, we studied the dynamic response of MAGLEV.

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자기부상 stage 구동 리니어 모터의 설계 및 특성해석 (Design and Characteristic Analysis of a Linear Motor for Magnetic Levitation)

  • 강규홍;안호진;홍정표;강도현
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2001년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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    • pp.9-11
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    • 2001
  • This paper deals with design and characteristic analysis of a permanent magnet linear synchronous motor for magnetic levitation stage of semi-conductor manufacture machine. In order to improve the control performance by detent force minimization, skew and PM offset method are used.

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해석적 방법을 이용한 슬롯리스형 영구자석 선형 전동기의 특성 해석 (Characteristic Analysis of a Slotless PM Linear Motor Using Analytical Method)

  • 안호진;강규홍;홍정표;김규탁
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2001년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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    • pp.116-118
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    • 2001
  • This paper deals with characteristic analysis of a slotless PM linear motor using analytical method. In order to calculate voltage equations, back-EMF waveform and winding inductance are caculated by PM's magnetic field and winding's magnetic field respectively.

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집중권 매입형 영구자석 전동기의 역기전압 THD 저감설계 (The Design of Concentric Winding Type IPMSM For Low Back EMF THD)

  • 김영균;김성일;홍정표
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2005년도 제36회 하계학술대회 논문집 B
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    • pp.1270-1272
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    • 2005
  • This paper presents a method to reduce the back-emf THD(Total Harmonic Distortion) for the Concentric winding type Interior Permanent Magnet Synchronous Motor(CIPMSM). In the CIPMSM, many design variables and their complicated combinations must be considered to reduce the back-emf THD, but it requires a lot of time and efforts. Therefore, this paper suggests the optimized solution with two simple design parameters using MINITAB software.

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Metal Powder를 이용한 PWM 컨버터 입력단 AG리액터 개발 (A Development of AC Reactor for PWM Converter using the Metal Powder)

  • 이근호;하경호;김영균;이지영;홍정표;이진기
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 B
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    • pp.619-621
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    • 2002
  • In this paper, AC reactor for PWM converter using the metal powder is introduced. Metal powder AC reactor was developed to substitute conventional iron core typed AC reactor in the PWM converter application. The characteristics of the metal powder AC reactor are analyzed and tested. A new reactor has reduced switching noise and loss.

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릴럭턴스형 횡자속 선형전동기의 특성해석 (Characteristics Analysis of Reluctance Type Transverse Flux Linear Motor)

  • 류호길;이지영;하경호;홍정표;강도현
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 B
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    • pp.729-731
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    • 2002
  • This paper deals with 2D and 3D analyses by finite element method for the characteristics of reluctance type transverse flux linear motor. Although 3D analysis is essential because of the characteristics by flux direction. 2D analyses are also used by considering the effective axial length and using the equivalent reluctance 2D model. The thrust, the normal force and the coenergy of the machine are calculated and compared by the results of the three analysis methods.

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RSM(Response Surface Methodology)를 적용한 선형직류전동기(LDM)의 가동자 중량 저감 최적화 설계 (LDM Design for Reduction of Mover Mass Using RSM(Response Surface Methodology))

  • 남혁;김영균;장기찬;홍정표;박재완
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 B
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    • pp.964-966
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    • 2002
  • This paper presents a magnet circuit design procedure to reduce mover mass of the moving coil type linear direct motor (LDM). The procedure of optimization is based on the response surface methodology (RSM) and Sequential Quadratic Problem (SQP). This procedure of optimization is verified by the comparison of the result of the initial design between the result of the optimum design.

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구동방식을 고려한 브러시리스 전동기의 특성해석 (Characteristic Analysis of Brushless Motor Considering Drive Type)

  • 이재건;박창수;이정종;조한익;홍정표;이근호
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 B
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    • pp.589-591
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    • 2002
  • This paper deals characteristic analysis of brushless motor considering drive type. It is to divide operation with 120$^{\circ}$ and 180$^{\circ}$ conduction and to predict the current waveform and the instantaneous torque of each type using analysis method. The results of the simulation are compared the experiment.

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릴럭턴스 토크 확보를 위한 단상 유도형 동기기의 자기회로 설계 (Design of Magnetic Circuit Obtained with Reluctance Torque in Line-start Permanent)

  • 오영진;남혁;정승규;홍정표;정태욱;백승면
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 B
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    • pp.586-588
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    • 2002
  • This study investigaties magnetic circuit design of the Line-Start Permanent Magnet Synchronous Motor (LSPM) for advanced reluctance torque in steady state. Back-emf and d-/q-axial inductance is analyzed by using 2 dimensional Finite Element Method (FEM). These results are reflected characteristic analysis of LSPM.

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