• Title/Summary/Keyword: PV Cell

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A Study for Design and Operational Features of Grid-Connected 30kW PVIB (30kW PVIB의 설계 및 구동특성에 관한 연구)

  • Park, Se-Joon;Yoon, Jeong-Phil;Choi, Hong-Jun;Shin, Yeong-Shik;Cha, In-Su;Kim, Dong-Mook;Lim, Jung-Yeol
    • 한국태양에너지학회:학술대회논문집
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    • 2008.04a
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    • pp.80-85
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    • 2008
  • A PVIB(Photovoltaic in Building) system is united by a constituent outer covering and can expect dual effects that reduce expenses for the establishment of a PV system. It is a profitable technology because it does not need a building as it is a stand alone PV system. This paper presents design, operational features analysis, and PCS(Power Conditioning System) of grid-connected 30kW PVIB set up on the library of Dongshin University. For a sustainable photovoltaic system in this area, the data of the PVIB system are collected and analyzed by monitoring system using LabView. PCS of the grid-connected PVIB system, also, is designed for optimal operation with characteristics suggested in this paper.

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Fabrication and Characterization of Electro-photonic Performance of Nanopatterned Organic Optoelectronics

  • Nil, Ri-Swi;Han, Ji-Yeong;Gwon, Hyeon-Geun;Lee, Gyu-Tae;Go, Du-Hyeon
    • Proceedings of the Korean Vacuum Society Conference
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    • 2014.02a
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    • pp.134.2-134.2
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    • 2014
  • Photonic crystal solar cells have the potential for addressing the disparate length scales in polymer photovoltaic materials, thereby confronting the major challenge in solar cell technology: efficiency. One must achieve simultaneously an efficient absorption of photons with effective carrier extraction. Unfortunately the two processes have opposing requirements. Efficient absorption of light calls for thicker PV active layers whereas carrier transport always benefits from thinner ones, and this dichotomy is at the heart of an efficiency/cost conundrum that has kept solar energy expensive relative to fossil fuels. This dichotomy persists over the entire solar spectrum but increasingly so near a semiconductor's band edge where absorption is weak. We report a 2-D, photonic crystal morphology that enhances the efficiency of organic photovoltaic cells relative to conventional planar cells. The morphology is developed by patterning an organic photoactive bulk heterojunction blend of Poly(3-(2-methyl-2-hexylcarboxylate) thiophene-co-thiophene) and PCBM via PRINT, a nano-embossing method that lends itself to large area fabrication of nanostructures. The photonic crystal cell morphology increases photocurrents generally, and particularly through the excitation of resonant modes near the band edge of the organic PV material. The device performance of the photonic crystal cell showed a nearly doubled increase in efficiency relative to conventional planar cell designs. Photonic crystals can also enhance performance of other optoelectronic devices including organic laser.

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A Simple Power Management Scheme with Enhanced Stability for a Solar PV/Wind/Fuel Cell Fed Standalone Hybrid Power Supply using Embedded and Neural Network Controller

  • Thangavel, S.;Saravanan, S.
    • Journal of Electrical Engineering and Technology
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    • v.9 no.5
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    • pp.1454-1470
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    • 2014
  • This paper propose a new power conditioner topology with intelligent power management controller that integrates multiple renewable energy sources such as solar energy, wind energy and fuel cell energy with battery backup to make best use of their operating characteristics and obtain better reliability than that could be obtained by single renewable energy based power supply. The proposed embedded controller is programmed for maintaining a constant voltage at PCC, maximum power point tracking for solar PV panel and WTG and power flow control by regulating the reference currents of the controller on instantaneous basis based on the power delivered by the sources and load demand. Instantaneous variation in reference currents of the controller enhances the controller response as it accommodates the effect of continuously varying solar insolation and wind speed in the power management. The power conditioner uses a battery bank with embedded controller based online SOC estimation and battery charging system to suitably sink or source the input power based on the load demand. The simulation results of the proposed power management system for a standalone solar/WTG/fuel cell fed hybrid power supply with real time solar radiation and wind velocity data collected from solar centre, KEC for a sporadically varying load demand is presented in this paper and the results are encouraging in reliability and stability perspective.

Simulation of Solar Cell Maximum Power Point Using Matlab (Matlab을 이용한 솔라셀의 최대전력점 시뮬레이션)

  • Lee K.Y.;Kim H.S.;Park J.M.;Cho G.B.;Baek H.L.;Hanyeong College D.H. Kim
    • Proceedings of the KIPE Conference
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    • 2003.07a
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    • pp.204-207
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    • 2003
  • PV model is presented based on the shockley diode equation. The simple model has a photo-current source, an single diode junction and a series resistance and includes temperature dependences. An accurate PV module electrical model is presented, matching with boost converter MPPT strategy and demonstrated in Matlab for a typical general purpose solar cell. Given solar insolation and temperature, the model returns current vector and MPP.

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The study on construction of the practical testing ground of grid-connected photovoltaic system (태양광발전 계통연계 실증시험장 구축에 관한 연구)

  • Kim, Euihwan;Jang, Juyeon
    • 한국신재생에너지학회:학술대회논문집
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    • 2010.06a
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    • pp.65.2-65.2
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    • 2010
  • Currently the variety of governmental business support and research for supplying solar energy have been actively progressed. As of now, however, There are no practical testing infrastructures of grid-connected photovoltaic system which test performance of solar power facility in domestic. Therefore, in KEPRI, there is in progress construction of practical testing ground of 500 kW class grid-connected PV System for developing the evaluation of the performance technology including the Module, PCS, and etc, that is the important instrument of the PV System, in Gochang area. It analyzed the site creation work for constructing the practical testing ground and new construction of control room and the unit standards, specifications and capacity of required equipment. For the system detailed design, configuration, instrument-specific parameters established, power generation predictions of Array Type and the components of testing ground are needed to build.

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Operating Performances of PV Energy Generation System with MPPT

  • Oh, Jin-Seok;Kim, Mark-Spatt;Lee, Yun-Hae;Jun, Sang-Tae;Yea, Seung-Hwan;Kim, Byeong-Deok;Lee, Yoon-Sik;Ji-Young
    • Journal of Advanced Marine Engineering and Technology
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    • v.27 no.4
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    • pp.479-486
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    • 2003
  • This paper presents the Performance of PV(Photovoltaic) system. the design of MPPT and the battery characteristic. The output power of PV depends on the environmental factors such as insolation and cell temperature. It is proposed that the MPPT is based on an simple power control algorithm. Furthermore the converter has to maintain the optimum duty ratio. A switching strategy of converter for battery may Protect against excessive discharge and overcharge. This paper includes discussion on system reliability power quality and effects of the randomness of the wind and the solar radiation on system design.

Analysis and design DC-DC converter for solar cell array output control (태양전지 출력제어를 위한 DC-DC 컨버터의 해석 및 설계)

  • 고재석
    • Proceedings of the KIPE Conference
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    • 2000.07a
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    • pp.665-669
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    • 2000
  • Recently the problem of energy branch become worse increasingly. Therefore many researches about new energy source are processing in several places around are processing in several places around the world. Especially solar energy has many advantages like as purity and infinity. Photovoltaic(PV) system can be classified into two types : One is stand alone type and the other is utility interactive one. Utility interactive type PV system need some technology that Maximum peak power tracking(MPPT) and Anti-islanding and Active Power filter(APF). For APF operation dc-link voltage should be high to supply sufficient output current which needed for harmonic current compensation so usually DC-DC converter is used for boost. In this paper DC-DC converter for PV system and controller for dc-link voltage control are analyzed and designed.

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The Implementation of photovoltaic simulator system with ATEasy Tool and PPS (ATEasy Tool과 PPS를 이용한 태양광 시뮬레이터 시스템 구현)

  • Kim, Sang-Mo;Jang, Ki-Young;Kim, Ki-Hyun;Lee, Seung-Hee;Yu, Gwon-Jong
    • 한국신재생에너지학회:학술대회논문집
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    • 2009.06a
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    • pp.103-106
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    • 2009
  • In this paper, the implemented photovoltaic array simulator is the power supply based on a common photovoltaic characteristic. This simulator is consisted of a common DC power supply and PC for controlling output. User can select the number of PV modules and solar radiation energy and then can get output whatever user wants. This simulator is a very helpful system to PV generating test and unexpensive than the existing PV simulators.

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A Study on the Tracking Failure of MPPT Control in PV Generation System (태양광 발전시스템의 MPPT제어의 최대전력추종 실패에 관한 연구)

  • Kim, Bong-Tae;Lee, Jae-Deuk;Park, Min-Won;Yu, In-Keun
    • Proceedings of the KIEE Conference
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    • 2001.07b
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    • pp.1290-1292
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    • 2001
  • Photovoltaic(PV) power generation system has been extensively studied and watched with keen interest as a clean and renewable power source. On the other hand, because the output power of solar cell is not only unstable but uncontrollable, the maximum power point tracking(MPPT) control is still hot issue with the tracking failure left unsolved under the sudden fluctuation of irradiance. Hence, in this paper, we introduce the mechanism of the tracking failure under the fluctuation of irradiance, and show the simulation results using SPRW(simulation method for PV power generation system using real weather conditions).

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The Analysis of Optical Characteristics of Glasses for PV Module Application (태양전지모듈적용 투명유리의 광특성 분석)

  • Kim, Kyung-Soo;Kang, Gi-Hwan;Yu, Gwon-Jong
    • 한국태양에너지학회:학술대회논문집
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    • 2008.04a
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    • pp.98-103
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    • 2008
  • The glass for crystalline PV module fabrication should have high thermal and mechanical resistance to environmental also have high transparency. In this paper, we analyze the optical characteristics of glasses for photovoltaic module application. The transmittance of several glasses are measured. The effects of texturing on low iron glass, glass thickness, anti-reflective glass, photocatalyst-treated glass and special glass are compared each other. Then this will give some information to select PV glass for manufacturing. The detailed analysis is described in the following paper.

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