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Analysis of Module Mismatch Loss in Solar PV String and Feasibility Study for Improvement Method

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한국태양에너지학회 논문집 Vol. 29, No. 1, 2009

58

태양광 PV 스트링에서의 모듈 부정합 손실의 분석 및 개선 기법 타당성 연구

Analysis of Module Mismatch Loss in Solar PV String and Feasibility Study for Improvement Method

(2)

안희욱

(3)

한국태양에너지학회 논문집 Vol. 29, No. 1, 2009

60

부정합 손실ML 

정규 모듈의 최대전력

모듈 최대전력 스트링 최대전력

0 1 2 3 4 5 6

0 200 400 600 800 1000 1200

Suns=0.95, T=25 deg.C

String Current [A]

Power [W]

Modules in Series: 8 Norm.: 7, Mis.: 1 Mis.V ratio: 1 Mis.I ratio: 1.2 Pmax= 1273.9 PmaxMis= 181.5 PmaxNorm= 1105.2 Power Loss= 12.8 (1.0%)

0 1 2 3 4 5 6

0 200 400 600 800 1000 1200

Suns=0.95, T=25 deg.C

String Current [A]

Power [W]

Modules in Series: 8 Norm.: 7, Mis.: 1 Mis.V ratio: 0.7 Mis.I ratio: 1 Pmax= 1200.2 PmaxMis= 96.2 PmaxNorm= 1105.2 Power Loss= 1.2 (0.1%)

0 1 2 3 4 5 6

0 200 400 600 800 1000 1200

Suns=0.95, T=25 deg.C

String Current [A]

Power [W]

Modules in Series: 8 Norm.: 7, Mis.: 1 Mis.V ratio: 1 Mis.I ratio: 0.7 Pmax= 1105.2 PmaxMis= 117.6 PmaxNorm= 1105.2 Power Loss= 117.6 (9.6%)

(4)

안희욱

(5)

한국태양에너지학회 논문집 Vol. 29, No. 1, 2009

62

0 1 2 3 4 5 6 7

1 101 201 301 401 501 601 701

sec

Istr[A]

0 200 400 600 800 1000 1200 1400

Pstr[W]

Istr Pstr 0

5 10 15 20 25 30 35 40 45

1 101 201 301 401 501 601 701

Vim, Vrm1 [V] .

0 50 100 150 200 250 300 350 400 450

Vstr [V]

Vim Vrm1 Vstr

0 5 10 15 20 25 30 35 40 45

1 51 101 151 201 251

Vim,Vmcc,Vrm1

0 50 100 150 200 250 300 350 400 450

Vstr [V]

Vim Vmcc Vrm1 Vstr

0 1 2 3 4 5 6 7

1 51 101 151 201 251

sec

I_im, Istr [A]

0 200 400 600 800 1000 1200 1400

Pstr [W]

Istr_mcc I_im Pstr

(6)

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