표제지
목차
ABSTRACT 8
I. 서론 10
II. 이론적 고찰 12
A. 태양전지의 원리 12
1. 태양전지의 발전원리 및 구조 12
2. 태양전지의 특성 14
3. 태양전지의 전기적 특성 17
B. 태양광발전시스템 21
1. 태양전지 어레이 구성 23
2. 태양전지 어레이 지지대 27
3. 접속함 28
4. 인버터 32
III. 실험 35
A. 3kW 태양광발전시스템 35
1. 태양전지 37
2. 계통연계형 인버터 38
B. 실험결과 검토 39
IV. 결론 48
[참고문헌] 49
Table 1. Comparition of structure lifetime 27
Table 2. PV module and array specifications 37
Table 3. Inverter specifications 38
Table 4. Performance results of PV system 41
Table 5. Performance results of PV system by days 46
Fig. 1. The basic principle of photovoltaic 13
Fig. 2. The photovoltaic effect in P-N junction 13
Fig. 3. The equivalent circuit of PV cell 14
Fig. 4. The voltage and current curve of PV cell 15
Fig. 5. I-V characteristics at different irradiation 18
Fig. 6. Maximum output voltage and MPP of PV cell 19
Fig. 7. MPPT at different irradiance 19
Fig. 8. I-V characteristics at different temperature 20
Fig. 9. Output power by irradiation and temperature change 20
Fig. 10. Block diagram of grid connected PV system 22
Fig. 11. PV system of grid connected 22
Fig. 12. String configuration 24
Fig. 13. PV plants design inverter position with string interval 24
Fig. 14. Distance length of PV array 25
Fig. 15. Circuit diagram of junction box 28
Fig. 16. Bypass diode configuration 29
Fig. 17. Electric characteristics curve of bypass diode operation 30
FIg. 18. Inverter circuit of current controlled method 32
Fig. 19. Vector diagram of voltage and current 33
Fig. 20. Maximum power point control 34
Fig. 21. Block diagram of PV system 36
Fig. 22. PV Connection 36
Fig. 23. The irradiation by months 39
Fig. 24. PV array output power level by months 41
Fig. 25. Inverter output power level by months 42
Fig. 26. PV array conversion efficiency by months 42
Fig. 27. Inverter efficiency by months 43
Fig. 28. Utilization ratio by months 43
Fig. 29. Generation Efficiency by months 44
Fig. 30. Performance ratio by months 44
Fig. 31. The irradiation by days 45
Fig. 32. PV array output power level by days 46
Fig. 33. Inverter output power level by days 47
Fig. 34. Inverter efficiency by days 47