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Performance and Reliability of 1 MW Photovoltaic Power Facilities in AIST

Published on May 1, 2006
· DOI :10.1109/WCPEC.2006.279904
Kenji Otani16
Estimated H-index: 16
(AIST: National Institute of Advanced Industrial Science and Technology),
Takumi Takashima15
Estimated H-index: 15
(AIST: National Institute of Advanced Industrial Science and Technology),
Kousuke Kurokawa22
Estimated H-index: 22
(TUAT: Tokyo University of Agriculture and Technology)
Abstract
The AIST 1 MW PV facilities consist of a total of 211 inverters of the 4-kW type designed principally for residential uses, and tens of inverters of the 10-kW unit designed principally for industrial uses. These inverters are connected to low-voltage (200 V) distribution line in AIST. There are 13 kinds of PV modules from 5 different technologies and tens kind of PV inverter from several manufactures. Benchmarking these PV components reveals the differences of the performance and reliability among other PV components under actual conditions. During the first two years, there were several failures in the system components, mainly caused by improper installation works. But the PV facilities showed proper performance ratio (around 70%) and perfect availability in total. The mean time of failure was 7.9 times. More than 64% of individual PV systems had no failures. The mean time to repair was only 3.3 days
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  • Citations (5)
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