http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 목진성(J.S. Mock) (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
저압 인버터용 Busbar 재질 변화에 따른 열유동-전자계 연성해석
정원목(W.M.. Jeoung),목진성(J.S. Mock),김선영(S.Y. Kim),홍찬욱(C.O. Hong),김정빈(J.B. Kim),김경서(K.S. Kim),유성열(S.R. Ryoo) 한국전산유체공학회 2012 한국전산유체공학회 학술대회논문집 Vol.2012 No.11
The Busbar is generally fabricated by molding a number of copper plates, that is used for electric system such as low voltage inverter and converter. It is conducted a study on replacing as other low-cost materials because of upsurge in raw materials for industry. In previous studies, numerical approaches were investigated to predict the effect of the temperature distribution of replacing to this busbar from copper to aluminum. In this study, thermal-fluid-electromagnetic coupled numerical analyses are performed to take into account the Joule heat effect on the numerical evaluation of the busbar material characteristics. Comparisons with experimental results show that the proposed coupled analysis provides more reliable results than the conventional analyses in predicting the temperature characteristics.
-
1.5 MVA SYSTEM 고압 인버터의 열유동 해석과 실험을 통한 정합성 검증 평가
목진성(C.S. Mock),유성열(S.R. Ryoo),김선영(S.Y. Kim),안상국(S.K. Ann),전재현(J.H. Jun),홍찬욱(C.O. Hong),나승호(S.H. Na),김경서(K.S. Kim) 한국전산유체공학회 2012 한국전산유체공학회 학술대회논문집 Vol.2012 No.5
As the demand for saving energies has been getting higher all over the world the development for high-voltage and high capacity inverters has been achieved to reduce energy by controling the consumption patterns of industrial electric equipments. H-Bridge Multi-Level high-voltage inverter being researched is the single phase H-Bridge inverter by using low-voltage power semiconductor devices. It can make high-voltages close to a sine wave by connecting composed cells on series. This is a topology without filters because of the low input and output harmonic, and usages of it have been expanded in metal, oil, natural gas and electricity generation industries. The optimal operation conditions on these kinds of high-voltage inverters are varied by running environment conditions, and the performance tests for thermal stability of inner electric semiconductors changes are partially impossible because of facilities. In this research, the junction temperature of power electronics devices, distribution of surface temperature on heat sink and inner temperature and velocity of cells and systems have been drawn as the results by using ANSYS ICEPAK specialized in CFD simulation of power electronics equipments to secure the thermal reliability of cells and systems for 1500kW high-voltage inverters. Through these outcomes the ventilation structures and an effective arrangement of heat components of cell-based inverters could be applied to the plan for a uniform flow distribution of a high-voltage inverter system. Moreover, the consistency of thermal-flow simulation was proven by comparison of actual temperature through the cell-based performance tests.
-
강한영(H.Y. Kang),목진성(C.S. Mock),최종웅(J.W. Choi),박석원(S.W. Park),이종호(J.H. Lee) 한국전산유체공학회 2011 한국전산유체공학회 학술대회논문집 Vol.2011 No.11
Solar power system that can get directly from the natural eco-friendly and, without causing pollution is a static work device. In addition, ease of maintenance because recently a lot of technical development is being done. Solar power system solar cells without the help of a generator by converting sun power directly into electrical energy is developed by using solar power to DC Power Conditioner Unit(PCU) through a AC power or converted into DC power, residential, business, and many places are supplied to the load. In this paper, 3kW-class thermal and flow distribution inside the inverter ICEPAK numerical analysis using commercial packages was carried out. PCUs main heat sources inside the Igbt, Reactor, Capacitor, and pars by the heat of the malfunctioning parts, components and parts life, and many have a problem, because the thermal PCU internal temperature should be managed. PCU for the optimal design of numerical analysis of various cases were in progress, leading to designers through a variety of numerical information given was incorporated into the design. In particular, depending on whether the internal fan was install or not the temperature of the internal flow varried up to 4 degrees, the capacitors temperature showed a maximum difference of 20 degrees, capacitors, cooling and circulation of internal flow and the fans should choose the appropriate order.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
