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배터리 내장형 초소형 태양광 장치용 PV MPPT 및 충방전 제어 알고리즘
- 배터리 내장형 초소형 태양광 장치용 PV MPPT 및 충방전 제어 알고리즘
- Translated Title
- The PV MPPT & Charge and Discharge Algorithm for the Battery Included Solar Cell Applications
- 김승민; 박봉희; 최주엽; 최익; 이상철; 이동하
- DGIST Authors
- 이상철; 이동하
- Issue Date
- 한국태양에너지학회 논문집, 33(5), 69-75
- 태양광최대전력추종제어(PV MPPT); 배터리충방전제어(Charge and discharge control for the battery); 컨버터 모델링(Converter Modeling); 배터리내장형태양광장치(Battery included solar cell application)
- To increase the efficiency of the photovoltaic, almost photovoltaic appliances are controlled by Maximum Power Point Tracking(MPPT). Existing most of the PV MPPT techniques have used power which multiplies sensed output current and voltage of the solar cell. However, these algorithms are unnecessarily complicated and too expensive for small and compact system.
The other hand, the proposed MPPT technique is only one sensing of the MPPT converter’s output current, so there is no need to insert another sensors of battery side. Therefore, this algorithm is simpler compared to the traditional approach and is suitable for low power solar system.
Further, the novel proper charge/discharge algorithm for the battery with PV MPPT is developed. In this algorithm, there is CC battery charge mode and load discharge mode of the PV cell & battery dual. Also we design current control to regulate allowable current during the battery charging. The proposed algorithm will be applicable to battery included solar cell applications like solar lantern and solar remote control car. Finally, the proposed method has been verified with computer simulation.
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