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태양광 PV 스트링에서의 모듈 부정합 손실의 분석 및 개선 기법 타당성 연구Analysis of Module Mismatch Loss in Solar PV String and Feasibility Study for Improvement Method
- Other Titles
- Analysis of Module Mismatch Loss in Solar PV String and Feasibility Study for Improvement Method
- Authors
- 안희욱
- Issue Date
- 2009
- Publisher
- 한국태양에너지학회
- Keywords
- Solar PV power generation; Module mismatch; Mismatch Loss; Efficiecy improvement; Mismatch compensation converter; MCC.; 태양광 발전; 모듈 부정합; 부정합 손실; 효율 제고; 부정합 보상 컨버터.; Solar PV power generation; Module mismatch; Mismatch Loss; Efficiecy improvement; Mismatch compensation converter; MCC.
- Citation
- 한국태양에너지학회 논문집, v.29, no.1, pp 58 - 63
- Pages
- 6
- Journal Title
- 한국태양에너지학회 논문집
- Volume
- 29
- Number
- 1
- Start Page
- 58
- End Page
- 63
- ISSN
- 1598-6411
- Abstract
- In this paper, the power loss due to PV module mismatch in PV string is analyzed and a mismatch compensation method is proposed to improve the efficiency of PV system. The analysis of mismatch loss using PV model simulation reveals that the mismatch module may decrease the total efficiency because the MPPT function of power conditioner make the PV system operate at the local maximum point. The mismatch loss can be severe if the maximum power point current of mismatch module is less than that of string. The proposed compensation method which is simply implemented with a buck type converter shows the possibility to remove the mismatch loss. The effectiveness of the analysis and compensation method is verified by a prototype experiment.
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