http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
최형범(Hyoung-Bum Choi),김경철(Kyung-Chul Kim),황영록(Young-Rok Hwang),이일무(Il-Mu Lee) 한국조명·전기설비학회 2011 한국조명·전기설비학회 학술대회논문집 Vol.2011 No.5월
Development and use of renewable energy due to environmental problems and depletion of energy affect grid-connected power system around the world. Therefore This paper analyzes the characteristic of gird connected photovoltaic power generation system which it is available to connect the utility. Renewable energy photovoltaic power system has been linked to the system to analyze the impact of photovoltaic system. MATLAB / Simulink program is modeled and analyzed on power quality of a photovoltaic power plant.
최형범(Hyoung-Bum Choi),김경철(Kyung-Chul Kim),황영록(Young-Rok Hwang),이일무(Il-Mu Lee),정지원(Ji-won Jung) 한국조명·전기설비학회 2011 한국조명·전기설비학회 학술대회논문집 Vol.2011 No.5월
Power systems becomes more highvoltage and high capacity recently. Power system caused by the accident of insulation breakdown. Excellent power cable is used due to advances in technology, but old cable and damage cable causes a power failure. This paper analyzed partial discharge using pattern analysis method of power cable. The simulation of partial discharge of power cable with defects was analyzed using pattern recognition methods.
최형범(Hyoung-Bum Choi),김경철(Kyung-Chul Kim),황영록(Young-Rok Hwang) 한국조명·전기설비학회 2011 조명·전기설비학회논문지 Vol.25 No.8
Development and use of renewable energy due to environmental problems and depletion of energy affect grid-connected power system around the world. Therefore this paper analyzes the characteristic of gird connected photovoltaic power generation system which it is available to connect the utility. Renewable energy photovoltaic power system has been linked to the system to analyze the impact of photovoltaic system. MATLAB / Simulink program is modeled and analyzed on power quality of a photovoltaic power plant. It is measured that power data for the Grid connected photovoltaic power plant with instantaneous measuring, 3sec measuring, 10min measuring for 7 days. Harmonic field measurement have shown that the harmonic contents of a waveform varies with time. A cumulative probability approach is the most commonly used method to solve time varying harmonics. so, it is used 50[%] cumulative probability approach. This paper provides an in depth analysis on power quality field measurement of the Grid connected photovoltaic power plant.
최형범(Hyoung-Bum Choi),김경철(Kyung-Chul Kim),이일무(Il-Mu Lee),황영록(Young-Rok Hwang) 한국조명·전기설비학회 2010 한국조명·전기설비학회 학술대회논문집 Vol.2010 No.9월
The photovoltaic power generation is one of the most suitable energy sources in the worldwide as a new and renewable energies for the fossil fuels shortage and global warming. The PV system needs a large area, appropriate module arrangement and sufficient solar radiation to get maximum power generation. In this paper, the optimum installation area size for an inclined fixation photovoltaic system was presented by calculating and simulating the optimum angle of solar radiation and arrangement of PV modules in the economic aspects pursuing the user's maximum profits.
회전 · 승하강식 가로등주 활용을 통한 녹색성장 효과에 관한 연구
최형범(Hyoung-Bum Choi),김경철(Kyung-Chul Kim),오성환(Sung-Hwan Oh),박동현(Dong-Hun Park),황영록(Young-Rok Hwang),이규진(kyu-jin Lee),정지원(Ji-won Jung) 한국조명·전기설비학회 2010 한국조명·전기설비학회 학술대회논문집 Vol.2010 No.9월
The current streetlight system have been tried various attempts. but during maintenance, it has caused the traffic congestion and many risk factors. In addition, maintenance costs are very expensive to manage and the local government have to establish countermeasures about the present condition. If neglected, it may cause a variety of social problems. so, there should be a measure to prevent problems. This rotational and up-and-down type streetlight can be a solution to these factors and it has been highlighted indirectly in terms of green growth because we have to take advantage of the value.
최형범(Hyoung-Bum Choi),김경철(Kyung-Chul Kim),이일무(Il-Mu Lee),황영록(Young-Rok Hwang),오길록(Gil-Rok Oh) 한국조명·전기설비학회 2011 한국조명·전기설비학회 학술대회논문집 Vol.2011 No.5월
Harmonics of the power quality in systems is growing more and more as a modern industrial society process. Among these harmonics, the problem of dangerous situations is generated especially in the whole system when exists high levels of harmonic. In this paper, we analyzed about type of cause for harmonic on the quality measurements and performed simulation for resolving the problem on ther basic types of filters installation before and after.
회전·승하강식 가로등주 활용을 통한 녹색성장 효과에 관한 연구
최형범(Hyoung-Bum Choi),김경철(Kyung-Chul Kim),오성환(Sung-Hwan Oh),황영록(Young-Rok Hwang),정지원(Ji-Won Jung),박동현(Dong-Hun Park) 한국조명·전기설비학회 2011 조명·전기설비학회논문지 Vol.25 No.2
The current streetlight system have been tried various attempts. but during maintenance, it has caused the traffic congestion and many risk factors. In addition, maintenance costs are very expensive to manage and the local government have to establish countermeasures about the present condition. If neglected, it may cause a variety of social problems. so, there should be a measure to prevent problems. This rotational and up-and-down type streetlight can be a solution to these factors and it has been highlighted indirectly in terms of green growth because we have to take advantage of the value.
LCD공장 내부의 온도센서 노이즈진단 및 억제에 관한 연구
김경철(Kyung-Chul Kim),최형범(Hyoung-Bum Choi),황영록(Young-Rok Hwang),김용관(Yong-Kwan Kim),유창훈(Chang-Hun You) 한국조명·전기설비학회 2012 조명·전기설비학회논문지 Vol.26 No.8
As automation equipment and electronic device progresses, the importance of power quality is more increasing. This paper represents the analysis and suppression about the causes of trouble by the inverter’s ON/OFF noise in plant in order to prevent damage resulting in a secondary damage to conduct precise diagnosis and effective noise reduction. The countermeasure as a reduced carrier frequency and the LC resonant filter had been applied and confirmed the effective results to solve the trouble of noise.
고로(高爐)슬래그 미분말을 사용한 고강도(高强度) 콘크리트 강도특성(强度特性)에 관한 실험적(實驗的) 연구(硏究)
임철진 ( Rim Cheol-jin ),설광욱 ( Seol Gwang-wook ),최형범 ( Choi Hyoung-bum ),부척량 ( Boo Cheong-yang ),이수곤 ( Lee Soo-gon ) 한국구조물진단유지관리공학회 2000 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.4 No.2
The ground granulated blast-furnace slag, a by-product obtained from molten slag during production of pig iron, is a widely used admixtures along with fly ash. Because the concrete substitute of micro-powder ground granulated blast-furnace slag has a strong control effect on the hydration heat, good strength expression in long-term Ages, and good chemical resistance such as resistance to sea water, many studies are in progress. Particularly, studies using the ground blast-furnace slag are being conducted on the retrenchment of production cost, industrial waste disposal and resource recycling. Additionally, the concrete substitute of micro-powder ground granulated blast-furnace slag has such disadvantages as low initial strength and quality alteration (shrinkage), this concrete is infrequently used in the home. In this study, therefore, the compressive strength of concrete, tensile strength of concrete and steel strain of reinforced concrete by the drying shrinkage in the concrete substituting the micro-powder of ground granulated blast-furnace slag are measured. Through comparison/analysis with existing studies, fundamental data for the use of the concrete structures are to be provided.
이창현 ( Lee Chang-hyun ),설광욱 ( Seol Gwang-wook ),최형범 ( Choi Hyoung-bum ),김제원 ( Kim Jae-won ),부척량 ( Boo Cheong-yang ),이수곤 ( Lee Soo-gon ) 한국구조물진단유지관리공학회 2000 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.4 No.2
As the structures become bigger, higher and more diverse because of the recent cultural and economic development, heat studies on various high-quality concretes are in progress to reduce disadvantages of existing concretes. Among them, the study on steel fiber reinforced concrete (SFRC), which is effective in improving the relatively low tensile strength and bending strength and restraining cracks, has had postive results for the last several years. In this study, after making SFRC by mixing steel fiber which has been frequently used in homes and other structures, the dynamic form of SFRC is compared and analyzed with that of ordinary concretes. Analytical results are compared with existing ones in order to consider applications for structures and, if applicable, to provide fundamental dynamic data.