• 제목/요약/키워드: Solar Power Tracking

검색결과 333건 처리시간 0.023초

GIS기법을 이용한 일사량 모델링 (Insolation Modeling Using by GIS)

  • 김병우;강인준;김상석;곽재하
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2010년 춘계학술발표회 논문집
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    • pp.359-361
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    • 2010
  • This research is thing about location choice of solar power generation equipment to increase efficiency of solar power generation equipment. In the case of current solar power generation equipment, location of large scale solar power generation equipment facilities choice or, have localized in small scale equipment by individual. This research uses various climatic elements of small scale area for efficient location choice of solar power generation facilities and quantity of solar radiation did back-tracking.

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새로운 승강압 초퍼회로에 의한 태양광발전제어 (Photovoltaic Power Generation Control by A New Buck-Boost chopper circuit)

  • 김영철;변홍구;서기영;이현우
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1997년도 하계학술대회 논문집 F
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    • pp.2177-2180
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    • 1997
  • The solar cell has an optimum operating point to be able to got maximum power. To obtain maximum power from Photovoltaic array, hotovoltaic power system usually requres maximum power point c tracking controller. The output characteristics of solar cell are nonlinear, and these characteristics vary with load solar insolation, solar cell temperature. Therefore the tracking control of maximum power point is the com-plicated problem. This paper presents power characteristics of residential Photovoltaic system applying a buck-boost conversion system.

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부분공진 승강압 초퍼회로에 의한 태양광발전제어 (Photovoltaic Power Generation Control by A Partial Resonant Buck-Boost chopper circuit)

  • 변홍구;문상필;서기영;이현우
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1997년도 추계학술대회 논문집 학회본부
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    • pp.413-415
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    • 1997
  • The solar cell has an optimum operating point to be able to get maximum power. To obtain maximum power from Photovoltaic array, potovolt aic power syste usually requres maximum power point tracking controller. The output characteristics of solar cell are nonlinear, and these characteristics vary with load solar insolation, solar cell temperature. Therefore the tracking control of maximum power point is the complicated problem. This paper presents power characteristics of residential Photovoltaic system applying a quck-boost conversion system.

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다중 추적식 태양광 발전 감성형 LED 가로등 (Solar Power Emotional LED Lightening Street Lamps with Multiple Control Sun Tracker)

  • 이재민;김용;배철수;권대식
    • 한국산학기술학회논문지
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    • 제12권2호
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    • pp.920-926
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    • 2011
  • 본 논문에서는 신재생에너지 활용을 위한 다중 추적식 태양광 발전 감성형 LED 가로등을 제안한다. 제안하는 가로등 시스템은 다중 추적방식의 태양광 추적기능을 갖추고 있고 감성형 고품위 LED 램프와 제어회로를 사용하여 센서를 통해 입력되는 온도 및 습도를 기반으로 최대의 일조량을 받을 수 있도록 하였다. 신재생에너지 활용의 핵심 요소인 효율적인 축전지 활용을 위해 충방전 컨트롤러를 개발하였고 원격모니터링 기능 및 제어기능도 구현 하였다. 제안하는 가로등 시스템은 기존 기술에 비하여 추적 동작이 우수하고 에너지효율이 향상되었으며 기존에 개발되지 않았던 추적식 태양광 발전 시스템과 감성형 LED를 결합함으로써 차세대 가로등 시스템의 모델로서의 활용될 수 있게 하였다.

일사량 변화를 고려한 개선된 MPPT 알고리즘 (The Improved Maximum Power Point Tracking Algorithm under varying of irradiance)

  • 이귀한;정영석;이윤섭;차한주;고석환
    • 한국태양에너지학회 논문집
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    • 제35권6호
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    • pp.17-24
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    • 2015
  • The MPPT(Maximum Power Point Tracking) techniques are employed in photovoltaic (PV) systems to maximize the PV array output power which depends on solar irradiance and temperature. The dynamic MPPT performance under varying irradiance conditions affects the impact on overall PV system performance. This paper presents the improved MPPT algorithm by the simulation comparison with other algorithms. The simulation models are made by the Matlab & Simulink. The result of simulation, the dynamic MPPT efficiency of proposed algorithm is higher than the other algorithms.

단축식 태양광 추적장치의 설계와 발전량 증대기술 (Technology of single-axis solar tracking system and power generation increase)

  • 이재진;이교범;정규원
    • 한국산학기술학회논문지
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    • 제21권7호
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    • pp.212-217
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    • 2020
  • 태양광 발전 시스템은 태양광 패널을 통해 발전된 전력을 계통연계를 통해 전송하는 종합 시스템이다. 발전량을 증대시키는 기술로써 태양광 입사각을 변화시켜 발전량을 증대시키는 추적식 태양광 발전장치 기술이 있다. 본 논문은 입사각을 변화시켜 발전량을 증대시키는 단축 추적식 태양광 발전장치의 구조물과 제어에 관한 연구이다. 핵심 내용은 태양광 구조물이 남북축을 중심으로 동서 방향으로 축회전하도록 구성한 단축 제어장치 및 기술이다. 일출로부터 일몰까지 동서방향으로 태양을 추종하는 태양광 구조물은 구조적 안정성과 태양광 추종 제어 성능 확보가 필요하다. 단축 추적 발전장치는 최대 25% 이상의 발전량 증대를 기대할 수 있다.

MAXIMUM POWER POINT TRACKING CONTROL OF PHOTOVOLTAIC ARRAY USING FUZZY NEURAL NETWORK

  • Tomonobu Senjyu;Yasuyuki Arashiro;Katsumi Uezato;Hee, Han-Kyung
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 1998년도 Proceedings ICPE 98 1998 International Conference on Power Electronics
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    • pp.987-992
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    • 1998
  • Solar cell has an optimum operating point to extract maximum power. To control operating point of the solar cell, a fuzzy controller has already been proposed by our research group. However, several parameters are determined by trial and error. To overcome this problem, this paper adopts Fuzzy Neural Network (FNN) for maximum power point tracking control for photovoltaic array. The FNN can be trained to perfect fuzzy rules and to find an optimum membership functions on-line.

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최적 발전성능 도출을 위한 태양광모듈 추적방법에 관한 연구 (A Study on the Tracking Method for Solar Module to Derive Optimum Performance)

  • 김용진;이종수;정유근;김정태
    • KIEAE Journal
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    • 제12권1호
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    • pp.113-118
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    • 2012
  • The photovoltaic is one of the most important sustainable technologies appliable to architectures. The power performance mainly depends on the installation conditions of them. This study aims to evaluate the power performance of photovoltaic system by the installation conditions, the tracking methods and reflecting mirrors. For the study, the Solar Pro computer simulations have been conducted on installation angles, solar azimuth and solar altitude. Also, the field mock-up tests are performed to of its application to verify the simulation results. Both the results of the experiment and the simulation have proved that the efficiency of 90-degree fixed angle method was higher than that of 30-degree fixed angle, the efficiency of altitude tracking was better than that of azimuth tracking method, and changing both the altitude and the azimuth together is more efficient rather than the shortened tracing way. In addition, the light-concentrating method in which the incidence angle of the sun is controlled by an adhered reflector has been analyzed to have better efficiency than the general method of tracing according to the orbit of the sun. Therefore, this thesis is expected to offer the basic data to set a more effective tracing-type of photovoltaic power generation system in the future. For this, more researches are to be conducted hereafter on a high efficiency drive motor and the establishment of an economic system.

3kW 추적형 태양광발전시스템의 실증연구 (Demonstration Research of 3kW Solar Tracking PV System)

  • 최연옥;김지훈;변문걸;이상일;조금배
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2006년도 전력전자학술대회 논문집
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    • pp.561-563
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    • 2006
  • This paper summarizes the results of these efforts by offering the PV generation system with solar tracking. The status of PV generation system with solar tracking components and interconnection and effects are semmarized. Hence this paper duscusses only points that might be useful for application.

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Development of a Novel Tracking System for Photovoltaic Efficiency in Low Level Radiation

  • Choi, Jung-Sik;Ko, Jae-Sub;Chung, Dong-Hwa
    • Journal of Power Electronics
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    • 제10권4호
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    • pp.405-411
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    • 2010
  • This paper proposes a novel tracking algorithm considering radiation to improve the power of a photovoltaic (PV) tracking system. The sensor method used in a conventional PV plant is unable to track the sun's exact position when the intensity of solar radiation is low. It also has the problem of malfunctions in the tracking system due to rapid changes in the climate. The program method generates power loss due to unnecessary operation of the tracking system because it is not adapted to various weather conditions. This tracking system does not increase the power above that of a power of tracking system fixed at a specific position due to these problems. To reduce the power loss, this paper proposes a novel control algorithm for a tracking system and proves the validity of the proposed control algorithm through a comparison with the conventional PV tracking method.