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http://dx.doi.org/10.21218/CPR.2022.10.4.133

Characteristics Analysis of Proto-type Microconverter for Power Output Compensation of Photovoltaic Modules  

Jihyun, Kim (Solar Energy R&D Dept., Green Energy Institute)
Ju-Hee, Kim (Solar Energy R&D Dept., Green Energy Institute)
Jeongjun, Lee (WP Co., Ltd.)
Jongsung, Park (Department of Energy Engineering, Gyeongsang National University)
Changheon, Kim (Solar Energy R&D Dept., Green Energy Institute)
Publication Information
Current Photovoltaic Research / v.10, no.4, 2022 , pp. 133-137 More about this Journal
Abstract
The economic feasibility of a photovoltaic (PV) system is greatly influenced by the initial investment cost for system installation. Also, electricity generation by PV system is highly important. The profits competitiveness of PV system will be maximized through intelligent operation and maintenance (O&M). Here, we developed a microconverter which can maximize electricity generation from PV modules by tracking the maximum power point of PV modules, and help efficient O&M. Also, the microconverter mitigates current mismatch caused by shading, hence maximize power generation. The microconverters were installed PV modules and demonstrated through the field tests. Power outputs such as voltage, string current were measured with variuos weather environments and partial shadings. We found that PV modules with the microconvertors shows 12.05% higher power generation compared to the reference PV modules.
Keywords
PV system; Microconverter; Photovoltaic module; Operation and maintenance; O&M;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Ministry of Trade, Industry and Energy, "Renewable energy industry competitiveness enhancement plan," Policy briefing of Republic of Korea (2019).
2 S. Carpenter and N. Meloche, The RETScreen model for simulating the performance of solar air heating (2002).
3 S. Chan and G. Oh, "An intelligent maintenance (O&M) decision-making platform based on physics of failure (PoF) for reducing the LCOE of solar power plants," The Korean Society of Mechanical Engineers(2021) 44 - 44 systems. Canada: Np., 2002. Web.
4 J. Min, "Technical trends of PV microconverters," Bulletin of the Korea Photovoltaic Society, 4(2), 25-32 (2018).
5 H. T. Choe, "Module Integrated converters and PV systems " Bulletin of the Korea Photovoltaic Society, 5(1), 16-23 (2019).
6 J. Itoh and T. Fujii, "A new approach for high efficiency Buck-Boost DC/DC converters using series compensation," IEEE Annual Power Electronics Specialists Conference, 130(1), 2109-2114 (2008).
7 J. Min and W. Choi, "Analysis of power generation characteristics of according of the MPPT algorithm period," The Korean Institute of Electrical Engineers, 67(4), 233-237 (2018).
8 Y. Choi, et. al., "MPPT control method of solar power generation system," The journal of the Korean Institute of Power Electronics, 18(1), 29-36 (2013).
9 L. Diana, et al., "Dual-boost inverter for PV microinverter application-an assessment of control strategies," Applied Science, 12, 5952 (2022).