• 제목/요약/키워드: 전기IT

검색결과 23,855건 처리시간 0.044초

공정제어 출하 자동화 시스템을 위한 Graphic LCD Device Driver 설계 및 구현 (Implementation of the embodiment for a Process Control Shipping Automation System)

  • 정병채;심현;이규수;오재철
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2007년도 심포지엄 논문집 정보 및 제어부문
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    • pp.193-195
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    • 2007
  • It will be able to deliver quickly information it measures a weight the numerous vehicles at real-time for the managers. It does the Graphic LCD driver development for in Factory automation embeded system and introduces the plan and an embodiment of process shipping automation system.

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상세 운전모형을 이용한 양수발전모의 (Simulation of Pumped-Generator Generation using Detail Operation Model)

  • 이연찬;;최재석
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2015년도 제46회 하계학술대회
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    • pp.347-348
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    • 2015
  • The pumped generators have excellent load following characteristics. It can also be committed quickly for synchronous reserve when it is in the generating mode because it can readily increase its generating power and, consequently, increases the overall system reliability. The probabilistic production simulation model is used in this paper. The practicality and effectiveness of the multi-proposed approach are demonstrated by simulation studies for a real size power system model in Korea in 2015.

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CRA 제어기법을 이용한 동기발전기 여자기의 출력 개선 (The Improvement Output of the Synchronous Generator Excitor using CRA control method)

  • 홍현문
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2008년도 춘계학술대회 논문집
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    • pp.449-450
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    • 2008
  • It is difficult to find for analysis solution of the synchronous generator exciter system. Recently, it had good performence UPS converter system using CRA method. The single converter of synchronous generator excitor system under considerations : (i) the overall system shall keep very low AC-voltage tracking error as well as no phase delay over different load condition, and (ii) the digital controller shall be employed at a fixed sampling. It is shown that the synchronous exciter system can be achieved by the proposed controller using Characteristic Ratio Assignment.

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정전형 마이크로 엑츄에이터의 주파수 응답 특성 해석 (Frequency Response Analysis of Electrostatic Microactuators)

  • 민동기
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 C
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    • pp.1982-1984
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    • 2002
  • The admittance of one-port electrostatic actuator are modeled using the steady-state sinusoidal response. Also the admittance of the differential type actuator is derived taking the practical conditions into consideration, although it has no admittance in ideal case. It is a function of biasing error, driving error, and capacitive mismatch including parasitic capacitors. The validity of the admittance model is proved by comparing between the modeled and measured admittances. The distortion in the frequency response curve measured by a capacitive sensor is analyzed and it is concluded that the admittance is the main cause of this distortion.

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SCR의 Gate 회로에서의 부성저항특성 (Negative Resistance cCaracteristic in Gate Circuit of SCR)

  • 박병철
    • 전기의세계
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    • 제23권6호
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    • pp.56-59
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    • 1974
  • It is well-known that the anode circuit of SCR has the current controlled negative resistance characteristic. Recently the present auther has shown that the gate circuit of SCR has the voltage controlled negative resistance characteristic for the constant anode voltage. It is shown of the equivalent model to SCR(when conducting) the voltage controlled negative resistance characteristic for gate circuit. And it is possible to make SCR gate oscillators with their desired characteristic for illustration.

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중성자 검출을 위한 회로설계 (The Circuit design for Neutron Detection)

  • 김상진;성낙진;김기준
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2003년도 춘계학술대회 논문집 기술교육전문연구회
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    • pp.42-46
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    • 2003
  • In this study, to measure the moisture of compaction, it is designed to use the 2neutron detectors. To perform the optimal design of their circuit, it is planned high voltage generator and voltage stable circuit and they are very suitable for detection demand. Also, it can be count to data calibration excluded count of ripple.

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스텝형 회전자 형상을 갖는 단상 SRM의 특성 해석 (Characteristic Analysis of Single Phase SRM with stepped rotor pole)

  • 이종한;이은웅
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년도 제37회 하계학술대회 논문집 B
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    • pp.805-806
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    • 2006
  • Single phase switched reluctance motor has a merit in practical use because it has simple operating drives and control systems, very high energy density per unit volume comparing with three phase SRM. But it must have a starting device. This paper presents a single phase SRM model with a stepped rotor pole, so as to reduce the torque ripple. Also it is simulated the designed prototype model by FEM for the prediction of characteristics.

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무전극 형광램프의 보급 및 확산을 위한 주력 제품군 선정 (To produce potential lighting structure for being widely used electrodeless lighting fluorescent lamps)

  • 김진모;정남용;신현정;박종환;나영신;황민구
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2004년도 춘계학술대회 논문집
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    • pp.163-166
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    • 2004
  • There are lots of merits in the electrodeless lighting. But it is not widely used because the price is too high though it has very good quality and efficiency. So it is necessary to develop a electrodeless lighting which can be widely used with its merit.

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보급형 PLS 300W 디자인 개발 (A Popular Design Development of PLS 300W)

  • 신현정;정진모;박종환;황민구;윤봉식
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2004년도 추계학술대회 논문집 전기물성,응용부문
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    • pp.36-39
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    • 2004
  • There are a lots of merits in PLS(Plasma Lighting System). But it is not widely used because the price is too high though it has very quality and efficiency. So it is necessary to develop a PLS which can be widely used with its merit.

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스텝형 회전자를 갖는 단상 SRM의 특성 해석 (Characteristic Analysis of single phase SRM with stepped rotor)

  • 이종한;이은웅;조연찬
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2005년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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    • pp.67-69
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    • 2005
  • Single phase switched reluctance motor lias a merit in practical use because it has simple operating drives and control systems, very high energy density per unit volume comparing with three Phase SRM. But it must have a starting device. This paper presents a single phase SRM model with a stepped rotor pole, so as to reduce the torque ripple. Also it is simulated the designed prototype model by FEM for the prediction of characteristics

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