TY - GEN
T1 - High efficiency grid-connected multi string PV PCS using H-bridge multi-level topology
AU - Lee, Jongpil
AU - Min, Byungduk
AU - Kim, Taejin
AU - Cha, Honnyong
AU - Yoo, Dongwook
AU - Yoo, Jiyoon
PY - 2011
Y1 - 2011
N2 - In this paper, a novel topology is proposed that can significantly increase the efficiency of photovoltaic (PV) system. The multi level topology consists of several H-bridge cells connected in series, each one connected to a string of PV modules. The proposed topology offers advantages such as the operation at lower switching frequency or lower current ripple compared to conventional two level topologies. The control algorithm permits the independent control of each dc link voltage, enabling, in this way, the tracking of the maximum power point for each string of PV modules. The proposed topology is implemented for 240kW power conditioning system. The experimental results show that the proposed topology has good performance.
AB - In this paper, a novel topology is proposed that can significantly increase the efficiency of photovoltaic (PV) system. The multi level topology consists of several H-bridge cells connected in series, each one connected to a string of PV modules. The proposed topology offers advantages such as the operation at lower switching frequency or lower current ripple compared to conventional two level topologies. The control algorithm permits the independent control of each dc link voltage, enabling, in this way, the tracking of the maximum power point for each string of PV modules. The proposed topology is implemented for 240kW power conditioning system. The experimental results show that the proposed topology has good performance.
KW - Multi-level inverter
KW - Multi-string PV PCS
KW - Renewable green energy
UR - http://www.scopus.com/inward/record.url?scp=80052092826&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80052092826&partnerID=8YFLogxK
U2 - 10.1109/ICPE.2011.5944736
DO - 10.1109/ICPE.2011.5944736
M3 - Conference contribution
AN - SCOPUS:80052092826
SN - 9781612849560
T3 - 8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia
SP - 2557
EP - 2560
BT - 8th International Conference on Power Electronics - ECCE Asia
T2 - 8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia
Y2 - 30 May 2011 through 3 June 2011
ER -
