• Current Photovoltaic Research
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• 제2권3호
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• pp.79-83
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• 2014

Dye-sensitized solar cells (DSSCs) are applied in the emerging fields of building integrated photovoltaic and electronics integrated photovoltaic like small portable power sources as demands are increased with characteristic advantages. Highly flexible dye-sensitized solar cells (DSSCs) prepared on single stainless steel mesh were proposed in this paper. Single mesh DSSCs structure utilizing the spraying the chopped glass paper on the surface treated stainless steel mesh for integrating the space element and the electrode components, counter electrode component and photoelectrode component were coated on each side of the single mesh. The fabricated single mesh DSSCs showed the energy-conversion efficiency 0.50% which show highly bendable ability. The new single mesh DSSCs may have potential applications as highly bendable solar cells to overcome the limitations of TCO-based DSSCs.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2010년도 춘계학술대회 초록집
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• pp.84.1-84.1
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• 2010

Currently, new and renewable energy come into the spotlight, such as solar energy, wind power, fuel cell, hybrid car etc., due to the energy resource is being depleted. Especially, in order to solve like this problem, the study of solar cell manufacturing systems are being extensively researched such as vacuum process. But the major fault of the vacuum process are its expensive production price. On the order hand, Roll-to-roll printing system, the new technology of solar cell manufacturing, has low production price compare with the vacuum process. Also roll-to-roll printing system can decrease the 95% of waste water and 99.9% of harmful gasses than the vacuum process. So we addressed the roll to roll printing system for the flexible solar cell by using printing technology. This roll-to-roll printing system is comprised of various modules, such as web handling module, fine pattern printing module, dry/curing module, uniform coating module and laminating module etc.

• Journal of Electrical Engineering and Technology
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• 제12권4호
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• pp.1511-1518
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• 2017

Renewable energy hybrid systems look into the process of choosing the finest arrangement of components and their sizing with suitable operation approach to deliver effective, consistent and cost effective energy source. This paper presents hybrid renewable energy system (HRES) solar photovoltaic, downdraft biomass gasifier, and fuel cell based generation system. HRES electrical power to supply the electrical load demand of academic research building sited in $23^{\circ}12^{\prime}N$ latitude and $77^{\circ}24^{\prime}E$ longitude, India. Fuzzy logic programming discover the most effective capital and replacement value on components of HRES. The cause regarding fuzzy logic rule usage on HOMER pro (Hybrid optimization model for multiple energy resources) software program finds the optimum performance of HRES. HRES is designed as well as simulated to average energy demand 56.52 kWh/day with a peak energy demand 4.4 kW. The results shows the fuel cell and battery bank are the most significant modules of the HRES to meet load demand at late night and early morning hours. The total power generation of HRES is 23,794 kWh/year to the supply of the load demand is 20,631 kWh/year with 0% capacity shortage.

• 대한기계학회논문집A
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• 제36권5호
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• pp.505-512
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• 2012

본 논문에서 태양전지 실리콘 웨이퍼 검사를 위해 광학스캐닝 메커니즘 기반 검사장비를 개발하였다. 그 중에서 다양한 결함검사 요구와 적절한 조명조건을 만족하는 구조적 하이브리드 조명시스템을 설계하였다. 그 다음으로 실험계획법을 이용하여 구조적 하이브리드 조명시스템의 최적 조명조건을 마스터 유리와 실리콘 웨이퍼에서 선정하였다. 마스터 유리에서 최적 조명조건은 B-강, BG-강, BR-강, BGR-강 이며, 실리콘 웨이퍼에서 최적조건은 R-중-B-중 이다. 이 최적조명조건을 적용하여 실리콘 웨이퍼 표면을 검사한 결과, 핀홀, 스크래치, 치핑 등 다수의 표면결함을 정확하게 검출하였다. 구조적 하이브리드 조명시스템은 태양전지 실리콘 웨이퍼 표면결함 검사에 유용하게 사용될 수 있다.

• 한국전기전자재료학회논문지
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• 제28권2호
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• pp.131-136
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• 2015

We develop the 60 W class hybrid solar LED street lamp controller. The controller is providing power via an inverter in the day with the least solar cell and battery and charging the battery for the ESS, acts as a power failure, the built-in battery. Rated output of the fabricated LED street lamp is 300 W or greater battery capacity 300 Wh, discharge time 10 hr, LED street lamp efficiency showed a very high level of light efficiency by about 127 lm/W. In addition, as a result of light distribution pattern according to the distance and the light intensity measurement will be able to ensure a very high quality, show the constant brightness in the distance from the road lights 6 m is about 35~40 lux in uniformity ratio. The proposed hybrid solar LED street lamp system showed a high energy capacity of approximately 1.5 to 152.7% power generation efficiency than typical conventional solar street lamp.

• Bulletin of the Korean Chemical Society
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• 제34권11호
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• pp.3183-3184
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• 2013

• 신재생에너지
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• 제1권1호
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• pp.32-36
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• 2005

We studied the optoelectronic properties of hybrid solar cells formed by mixing cadmium sulfide [CdS] nanorods with a conjugated polymer, poly-2-methoxy, 5-[2'-ethy[hexyloxy]-1,4-p-phenylenevinylene[MEH-PPV]. CdS nanorods were grown vertically on Ti substrates by electrochemical deposition through a porous alumina template. Absorption spectrum of the composite layer was the same as the superposition of the absorption spectrum of each individual layer. The photoluminescence signal from MEH-PPV film was reduced as a result of the mixing. The energy conversion efficiency of MEH-PPV improved from $0.0012\%$ to about $0.60\%$ when combined with the vertically aligned CdS nanorods.

• 한국추진공학회:학술대회논문집
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• 한국추진공학회 2011년도 제37회 추계학술대회논문집
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• pp.772-776
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• 2011

개발 중인 중형 전기추진 무인기는 전력원으로 태양전지, 연료전지, 이차전지를 사용한다. 전력변환기 및 컨버터를 없이 전압 매칭을 통해 전력원을 선정하고 단품시험을 수행하였다. 여러 종류의 전력원을 통합하여 사용함에 따른 각 전력원 별 특성파악 및 에너지 사용 비율을 정량적으로 평가하기 위해 5시간 지상통합시험을 수행하였다. 그 결과 배터리는 시동 및 과도상태에서 다른 동력원에 비해 빠른 출력반응을 보였으며, 연료전지와 태양전지는 순항영역에서 주 전력 공급원의 역할을 수행함을 확인하였다. 사용한 에너지 비율은 연료전지, 태양전지, 배터리가 각각 68%, 29%, 2.5%임을 알 수 있었다.

• 한국추진공학회지
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• 제19권4호
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• pp.94-101
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• 2015

장기체공 무인기용 동력원으로 활용될 태양전지-연료전지 복합 동력원 통합 전 단계로 태양전지와 연료전지 개별 시스템에 대한 구성과 평가를 수행하였다. 태양전지 시스템은 Sunpower사의 C60 태양 전지를 활용한 모듈, 상용 태양광 MPPT 제어기, 그리고 리튬-폴리머 배터리를 이용하여 구성하고 평가하였다. 연료전지 시스템 운용을 위하여 $NaBH_4$ 가수분해를 이용한 수소공급장치의 재시동 특성을 확인하였다. 태양전지 시스템에 속한 배터리의 성능이 평균 -2.9 V/hour임을 확인하였다. 수소공급장치의 재시동 특성이 운용임무 조건에서 안정적인 성능이 나타남을 확인하였다. 본 연구를 통하여 제시된 임무조건에서의 각 단일시스템의 성능이 적합함을 확인하였다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.127.3-127
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• 2001

In this paper, we present a technique of feedback control for different types of DC-DC converter using single DSP To improve dynamic response due to the variation of input voltage and current from solar cell caused by weather condition, the system is modeled as a hybrid system and simulated by MATLAB. Simulation result and experimental system are also compared with analog feedback control system.