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오훈,유재근 국제차세대융합기술학회 2019 차세대융합기술학회논문지 Vol.3 No.1
고조파에 의한 전기설비 사고와 경제적 손실은 증가하고 있다. 고조파 수동 필터는 고조파를 억제하는데 효과적이고 경제적이지만, 많은 현장 엔지니어들은 고조파 증폭과 병렬 공진 발생 등의 문제점으로 인해 계통에 수동 고조파 필터를 설치하는 것을 꺼려한다. 본 논문에서는 이러한 문제점을 해결하기 위해 역률 보상을 기반으로 하는 고 조파 수동필터 제어기를 개발하였다. 개발된 시스템의 전압 및 전류 측정 정확도는 표준 전력 발생장비인 FLUKE 61000A를 이용하여 시험하였으며, 측정 정확도는 0.5% 이하로 나타났다. Accidents of electric equipment and economical loss by harmonics show a rising tendency. A passive filter is economic and efficient in suppressing harmonics. But many engineers and designers are reluctant to install a passive filter to defect harmonics at their power system because of problems such as harmonic amplification and the probability of generating series or parallel resonance with the power system. This work have developed harmonic passive filter controller based on power factor correction that passive filters. The volated and current measurement accuracy of the developed system is tested by using electrical power standard devices FLUKE 61000A. The test results showed that accuracy of the developed system is less than 0.5 %
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오훈,손홍관 대한전기학회 2006 전기학회논문지A Vol.55 No.2
- Owing to the strike of lightning a breakage of insulator would happen. This breakage may give rise to many problems such as increment of reclosing failure, a drop for reliance and a hardship of maintenance and repair.To solve those problem, this study develop a protected equipment for insulator which is suitable to 22.9[kV] distribution line towers and is purposed to investigation for a proper adaption, protection efficiency of insulator and effect of adaption.
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오훈,박왈서 원광대학교 공업기술개발연구소 1996 工業技術開發硏究誌 Vol.16 No.-
In this paper, some intelligent rules for auto-tuning of feedback PI controller ate presented. Some rules for decision of control parameters are based on the step response of Ziegler-Nickols and the supervisior learning. Control parameters are determined by rules and steepest slope point and slop and desirous response. The control performance is· demonstrated by computer simulation.
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오훈,이재영 成均館大學校 科學技術硏究所 1988 論文集 Vol.39 No.2
This experiment was carried out to compare chemical compositions, mineral contents, amino acid compositions and electrophoretic patterns of protein of Korean human and cow's milk. The results are summarized as follows: 1. Human milk appeared to contain similar amount of total solids (11.28%) and fat(3.1%) to those of cow's milk, but higher lactose(6.77%) content and lower in protein(1.27%) and ash(0.19%) contents. 2. Ratios of Calcium to Phosphorus in human and cow's milk were 2. 63 : 1 and 1. 27 : 1, respectively, indicating ratio of calcium to Phosphorus in human milk was higher than that of cow's milk. Generally, major mineral contents in human milk was lower than that of cow's milk. 3. Ratios of casein to whey protein in human and cow's mills were 1 : 1.14 and 1 : 0. 2, respectively, indicating proportion of whey protein in human milk was higher than that of cow's milk. Content of nor-protein-nitrogen of human milk appeared to be 20.67%, which was 4 times as high as that of cow's milk. 4. Analytical results of amino acid compositions of human milk indicated that amino acid contents in human milk were lower than those of cow's milk as a whole, but cys and phe contents is human milk were higher than those of cow's milk. 5. Results from Slab-gel electrophoretic patterns of human milk casein showed that β -casein was a major component consisting of six bands and α_s1-casein which is one of the major component of cow's milk casein was absent. 6. Of human whey protein, lactalbumin appeared to be a major component. And other proteins such as lactoferrin, immuno-globulin and lysozyme formed a spearding zone altogether on the slab-gel. 7. β-Lactoglobulin which is one of the major components in cow's whey protein was absent in whey protein of human milk.
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중앙버스전용차로의 교차로 좌회전에 따른 버스 정지선 후퇴에 관한 연구
오훈,이진우,이영인 한국ITS학회 2004 한국ITS학회논문지 Vol.3 No.2
2004. 7. 1. 서울시는 대중교통 체계 개편의 하나로 강남대로, 성산-수색로, 도봉-미아로에 중앙버스전용차로제를 확대 시행하고 있다. 1996년부터 천호대로에서 실시한 중앙버스전용차로의 속도가 평균 35km/h를 나타내고 있는 것을 보면 버스의 속도 향상은 분명한 것으로 판단된다. 중앙버스전용차로를 시행하면 교차로상의 좌회전이 문제가 된다. 버스가 기존 1차로를 진행하기에 좌회전 차량들은 2차로에서 좌회전 할 수밖에 없다 원래 중앙버스전용차로를 실시하면 교차로의 좌회전은 허용치 않아야 한다. 하지만 좌회전을 허용치 않을 경우 지역 주민들의 반발과 다른 우회로 확보의 어려움 등의 문제가 제기된다. 이에 본 연구에서는 중앙버스전용차로를 시행하면서 기존의 교차로 좌회전은 허용한다는 전제하에 교차로 좌회전을 보다 안전하게 할 수 있는 방안으로 교차로 정지선을 분리하고, 그 적정 거리 산출 방안을 제시하고자 한다. July 1, 2004 Seoul Metropolitan city is operating the Median Bus Lane System on Gangnam Main Street, Seongsan-Susaek-ro (Road) and Dobong- Mia-ro (Road) as one of the systematic reorganizations in public transportation. It has been assumed that there was an improvement in the speed of bus considering that the Median Bus Lane System practiced on Cheonho-daero (Main Street) since 1996 have had 35km/h on the average. If the Median Bus Lane goes into effect, there is a problem with the left turn on the crossroad. The buses go on the existing first lane so that the left fuming cars cannot help but turn left on the second lane. In case that the Median Bus Lane is put into practice, the left turn on the crossroad should not be allowed. However, if the left turn is not permitted on the crossroads in the aforementioned main streets, neighboring residents will complain about it and there will be some difficulties in finding other detour. On the premise that the prevalent left turn on the crossroads is allowed while the Median Bus Lane is being put into practice, this study suggests the separation of a stop line between buses and other vehicles as a way of fuming left in a safe manner and a way to calculate the appropriate distance.
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직류 서보 전동기 제어의 강인성을 위한 전문가 관리 제어
오훈,박왈서,Oh, Hun,Park, Wal-Seo 한국조명전기설비학회 1995 조명.전기설비 Vol.9 No.6
It is needed to robust control for D.C. servo motor according to industrial automation. However, when a motor has an effect of disturbance and variable load, it is very difficult to guarantee the robustness of the system. as a compensation way of solving this problem, in this paper, a expert supervisory control method for motor control system is presented. Expert supervisory controller is designed by error and error change, and nth control input is decided by the addition of (n-1)th control input and inference amount of increase or decrease. Control input of expert supervisory control is transmitted to input, and the disturbance effect decrease remarkable by control input. The robustness of D.C. servo motor using expert supervisory control is demonstrated by the computer simulation.
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