{Photovoltaic panel integrated power conditioning system using a high efficiency step-up DC-DC converter}
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| Title | {Photovoltaic panel integrated power conditioning system using a high efficiency step-up DC-DC converter} |
| Publication Type | Journal Article |
| Year of Publication | 2012 |
| Authors | Choi WYoung, Lee CGoo |
| Journal | Renewable Energy |
| Volume | 41 |
| Pagination | 227–234 |
| Keywords | DC-AC inverter, DC-DC converter, Photovoltaic (PV), Power conditioning system (PCS), Power efficiency |
| Abstract | This paper presents a high efficiency photovoltaic (PV) panel integrated power conditioning system (PCS) by proposing a high efficiency step-up DC-DC converter. The suggested PCS consists of a high efficiency DC-DC converter and a single-phase DC-AC inverter. Each PV panel has its own DC-AC converter, performing the maximum power point tracking (MPPT) function and increasing its flexibility and expandability. Moreover, the proposed DC-DC converter converts the low PV panel voltage into a high DC-link voltage with a high step-up voltage conversion ratio. It can reduce the switching power losses, increasing the power conversion efficiency. The performance of the suggested PCS has been verified through a 180??W prototype of the PCS for a 60??Hz/120??V ac power grid. The proposed DC-DC converter achieves a high efficiency of 96.0{%}. The PCS including the DC-DC converter and DC-AC inverter achieves an efficiency of 93.1{%} with an almost unity power factor. ?? 2011 Elsevier Ltd. |
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