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상용툴을 이용한 120㎾급 계통연계형 태양광발전시스템의 모델링 및 모의 해석
황정희(J. H. Hwang),안교상(K. S. Ahn),김영섭(Y. S. Kim),임희천(H. C. Lim),오제명(J. M. Oh) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
In this paper, to evaluate the grid-connected 120㎾ class Photovoltaic(PV) system performance, as a consisted of solar cells, PCS, 150㎸A transformer station. The paper address modeling and analysis of a grid-connected 120㎾ class photovoltaic generation system(PV system) PSCAD/EMTD and Psim. A PWM voltage source inverter(VIS) and its current control scheme have been implemented. A P&O(Perturbation and Observation) MPPT algorithms technique modeling has been simulated and analysed.
120㎾급 태양광 발전시스템의 실 계통 연계 운영에 대한 연구
황정희(J. H. Hwang),안교상(K. S. Ahn),황인호(I. H. Hwang),임희천(H. C. Lim),오제명(J. M. Oh),김수창(S. C. Kim),김신섭(S. S. Kim) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
This paper summarizes the results of medium-scale(120㎾ class) installed in a Taeahn steam power system of Korea Western Power Co., Ltd., Scope of the study is development on the practical Technology for Application and evaluation of 120㎾ class PV system in a real power system. In this paper represent performance of 120㎾ PV system has been evaluated and analysed with simulation.
대규모 원단 도매 시장에서의 포름알데히드 노출에 관한 연구
최상준,백남원,김지현,이미선,황정희,정현희,이은희,최연기,양윤정,이태범,이경민,공정옥,이영미 서울대학교 보건대학원 2001 서울大學校 保健環境硏究所論叢 Vol.11 No.1
This study was conducted to assessment airborne formaldehyde concentration at dry-goods stores, 'G' market and additionally at the reconstructed lecture room in the university during November, 2001. 'NIOSH 2016' method, with 2,4-DNPH treated silica gel sampler and HPLC, was used for sampling and analysis of formaldehyde concentration. Because every merchant rejects to participate in study, volunteers, pretend to customer, were involved to monitor personal exposure level. The results are summarized as follows ; 1. The geometric mean(GM) and geometric standard deviation(GSD) of TWA concentrations from 'G' market were 0.037 ppm and 2.17 respectively. 2. The TWA concentrations of the personal samples from 'G' market ranged from 0.009 to 0.065 ppm and those of the area samples from '' market ranged from 0.06 to 0.071 ppm. 3. The TWA concentrations of the area samples from reconstructed lecture room ranged from 0.022 to 0.094 ppm. The TWA concentration from latest reconstructed lecture room was higher than that of older reconstructed lecture room. 4. All of samples except one were exceeding NIOSH TWA criteria, 0.016 ppm.