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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국태양에너지학회 한국태양에너지학회 논문집 한국태양에너지학회 논문집 제29권 제2호
발행연도
2009.4
수록면
1 - 7 (7page)

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Use of the PV(photovoltaic) generation system is increased in such areas as remote mountain places or islands at which electrical energy is not serviced. The stand alone PV system is required the power storage products such as battery, fly wheel and super capacitor. Several lead storage batteries are connected in series to get high voltages. The life of lead storage battery is shortened when over charge or over discharge takes place. So, it is needed to control batteries not to be overcharged or be discharged deeply. Voltage of each battery was ignored in former control methods in which overall voltage was used to control charge or discharge battery.
In this study, the charging and discharging voltage variations of sealed lead storage batteries with 12V/1.2A were investigated step by step experiments. The results of the test, show that, one should consider and specify the state of each battery to prevent overcharge or deep discharge. With the basis of the experiments, we designed a monitoring unit to monitor battery voltages simultaneously using micro-controller. The unit measures voltage of 20 batteries simultaneously and displays data on the color LCD monitor with curved line graph. It also sends data to PC using the RS232C communication port.
The designed unit was adapted to stand alone PV system with 1㎾ capacity and lead storage batteries are connected to the PV generation system. The number of lead storage batteries was 10 in series and 12V/250Ah each. Resistive load with 3㎾ was used for discharging.

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Abstract
1. 서론
2. 독립형 태양광발전시스템
3. 연축전지의 충방전 특성 실험
4. 연 축전지 모니터링 장치 제작 및 실험
5. 결론
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UCI(KEPA) : I410-ECN-0101-2009-563-019490538