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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Tsuno, Yuki Koichi Kamisako, Kurokawa, Kosuke |
| Copyright Year | 2008 |
| Description | Author affiliation: Tokyo University of Agriculture and Technology (TUAT), 2-24-16 Naka-cho, Koganei, 184-0012, Japan (Tsuno, Yuki; Koichi Kamisako,; Kurokawa, Kosuke) |
| Abstract | Authors have been proposing a novel approach by employing light emitting diodes (LED) as a light source with discrete-wavelength spectrum. LEDs have a number of practical advantages. Each of different color LED lights works as sampling wavelength for scanning the spectral sensitivity of PV module by modulating intensity of each spectral component in a sequential order. Even by a limited number of sampling wavelengths, full range spectral response can be estimated easily by newly developed fitting model. Then AM 1.5 spectrum of IEC 60904-3 is applied to obtained response curve to give STC rating. 3 types of experimental LED arrays have been developed since early 2003: i.e., Mk-1 to Mk-3. Under these experiments, spectral characteristic fitting model has been successfully developed. Nonuniformity of ±2% has been achieved by MK-2, satisfying Class A uniformity specification. The latest Mk-3 achieved 0.42 sun in October 2006. Its array consists of 2304 elements of high-brightness LEDs (HB-LED) in total provided with blue (473 nm), red (643 nm) and 2 elements of infrared (845 nm) for 1 unit. The following experimental results are presently attained for a one-cell module of 100 mm × 100 mm of single crystalline silicon with P at STC of 1.553 W calibrated under Class A simulator: i.e., I=3.757 A (+0.080 %); V=0.601 V (−0.121 %); P=1.660 W (+4.312 %); I=3.454 A (+2.493 %); V=0.469 V (+1.74 %); FF=71.74% (+4.73 %). Values in parentheses are corresponding to % errors for reference values. It is felt that present result has been already reaching practically usable level. If 6 LEDs allocation pattern is adopted, spectral response fitting formula will be very much improved. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 4619722 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781424416400 |
| ISSN | 01608371 |
| DOI | 10.1109/PVSC.2008.4922582 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-05-11 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Solar power generation Light emitting diodes Sampling methods Light sources Intensity modulation IEC standards Sun Crystallization Silicon Fitting |
| Content Type | Text |
| Resource Type | Article |
| Subject | Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering |
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