• 제목/요약/키워드: HanWoo

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대칭좌표계를 이용한 불평형 전원전압의 보상 (Compensation of Unbalanced Source Voltage using Symmetrical Component Method)

  • 윤민성;이우철;현동석
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2004년도 전력전자학술대회 논문집(2)
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    • pp.673-676
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    • 2004
  • 본 논문은 3상 입력전원의 불평형과 고조파문제를 대칭 좌표계를 통해 각각 정상분과 역상분으로 분리하여 동기 회전 좌표계 상에서 보상할 수 있는 알고리즘을 제안하였다. 동기 회전 좌표계 상에서 보상이 이루어지므로 UPQC와 같은 다양한 목적의 능동전력필터에 쉽게 적용될 수 있다 제안된 알고리즘의 타당성을 뒷받침하기 위해 시뮬레이션을 수행 하였다.

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반송용 리니어 DC 모터의 듀얼모드 위치제어에 관한 연구 (A study on the Dual mode Control of Linear DC motor for Carrier)

  • 임달호;윤상백;이우균
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1994년도 추계학술대회 논문집 학회본부
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    • pp.83-85
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    • 1994
  • This paper describes the dual mode control of the LDM(Linear DC motor) for carrier. The dual mode control consists of seek and analogue control. In seek mode, LDM is moved in the shortest time by switching line, and in analogue mode keeps at origion with high accuracy. We proposed different switching line method according to driving direction.

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신한옥 주거 만족도 실태조사 연구 - 전라남도를 중심으로 - (A Study on the Actual Conditions and Responses of New Han-ok Inhabitants through Questionnaire - Focused in Jeonnam Province -)

  • 송민정;장현충;이태강;이주엽;김선우
    • KIEAE Journal
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    • 제13권2호
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    • pp.3-12
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    • 2013
  • Recently, New Han-ok is in prevail because it has many good qualities as a dwelling. But the New Han-ok dwellers' needs and satisfaction ratio on their houses are not investigated yet. So, surveys on satisfaction ratio for New Han-ok were carried out to know New Han-ok's existing conditions and inhabitant's responses on New Han-ok dwellings. Followings are results. 1) Dwellers response that it is cool in summer and it is cold in winter. So, design and construction method against cold is needed for New Han-ok. 2) Window is the most picking element of New Han-ok for house improvement. 3) Window opening is main control method for cooling in summer. Warming sources in winter are various such as electricity, gas, oil, wood, etc. 4) PVC window structure and glasses were used for New Han-ok's window system as well as wooden window structure and Han-gi. 5) Interviewees are generally satisfied with New Han-ok's exterior view and inner spaces. Almost no humidifier is used. These results could be used for improvement of Han-ok and basic material for New Han-ok design.

파라미터 해석을 통한 프리미엄급 단상 유도기 효율 설계 (Design of Premium Efficiency Level of single-Phase Induction Motor using Parameter Analysis)

  • 장광용;김광수;장익상;이중우;김솔;이주
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2009년도 제40회 하계학술대회
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    • pp.672_673
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    • 2009
  • In this paper seeks the parameter which relates with the efficiency from premium efficiency level single-phase induction motor. Also it compares with the parameters and it analyzes and an optimum parameter it seeks by FEM. Consquently, a optimal design is accomplished from the this paper. Also parameters compare efficiency. And it analyzes and studies about optimum parameter by FEM. The sample single-phase induction motor selection selected existing premium level motor. We analyze each parameter using 2-D finite element analysis (FEM). According to Study of losses and Design flow, losses and efficiency can be explain by many parameter. So this paper present optimal parameters. Finally, this paper presents the method which raises the efficiency of premium efficiency level single-phase induction motor.

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