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Concentrator Photovoltaic Module (HCPV) Design

Concentrator Photovoltaic Module (HCPV) Design. Nelson Mandela Metropolitan University. Energy Postgraduate Conference 2013. 14.33 mA. 14.28mA. 14.49mA. 4.45 A. 1.35 V. InGaP. 4.46 A. 1.05 V. InGaAs. 4.45 A. 0.2 V.

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Concentrator Photovoltaic Module (HCPV) Design

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  1. Concentrator Photovoltaic Module (HCPV) Design Nelson Mandela Metropolitan University Energy Postgraduate Conference 2013

  2. 14.33 mA 14.28mA 14.49mA

  3. 4.45 A 1.35 V InGaP 4.46 A 1.05 V InGaAs 4.45 A 0.2 V Combined intensity profile of 336Xo concentrated sunlight on a CTJ cell. Ge

  4. Parquet Fresnel lens array (500cm2 lens area). • Rectangular aluminum housing support frame. • Reflective truncated pyramid secondary. • Concentrator Triple Junction (CTJ) cell.

  5. Isc Voc Power eff 13.85 mA 2.605 V 31.4 mW 31.4% 4.45 A 2.920 V 10.29 W 39.1 %

  6. 336 Xo

  7. Thermally stressed • Good optics • Bad thermal dissipation • Optimal design • Good optics • Good thermal dissipation • Optically misaligned • Misaligned optics • Good thermal dissipation

  8. Maximum concentration of 184Xo. • Small deviation in I-V characteristics is observed. • Power difference of 3% over 228 sun hours test period.

  9. At 68 sun hours a decrease in shunt slope is seen. • Progressive decrease in shunt slope is seen throughout operation. • At 228 sun hours the biggest deviation in shunt slope and in Rs slope is observed. • Kink present in curvepossible due to breakdown of Ge subcell. • Power difference of 12%.

  10. In operation for 228 Sun Hours. • An increase in Rs slope was observed. • A continual increase in Rs slope is observed while under operation. • The largest increase in Rs observed at 228 Sun Hours. • Kink present in I-V curve is possibly due to the breakdown of Ge subcell. • Power difference of 21%.

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