TY - GEN
T1 - Performance Benchmark of Bypassing Techniques for Photovoltaic Modules
AU - Niazi, Kamran Ali Khan
AU - Yang, Yongheng
AU - Khan, Hassan Abbas
AU - Séra, Dezso
PY - 2019/5/24
Y1 - 2019/5/24
N2 - The deployment of solar photovoltaic (PV) systems is increasing. The performance degradation of PV systems can happen, which is potentially induced by partial shading, also referred to as mismatch faults. Conventional PV modules are connected in series and are sensitive to mismatch faults. Bypass methods and other solutions are thus used to reduce the mismatch effect. This paper compares the performances of the bypassing techniques using traditional (Schottky) bypassing diodes with smart bypassing diodes (SBD). The benchmarking results show that the SBD can be employed to improve the performance during shading in PV systems. More specifically, the use of SBDs with series-connected MOSFETs leads to a reduction of the reverse voltage with a higher output power under various shading conditions, when compared to the case with traditional bypassing diodes. The reduction in the reserve voltage contributes to lowered temperature in shaded cells, and thus increases the reliability of the PV modules.
AB - The deployment of solar photovoltaic (PV) systems is increasing. The performance degradation of PV systems can happen, which is potentially induced by partial shading, also referred to as mismatch faults. Conventional PV modules are connected in series and are sensitive to mismatch faults. Bypass methods and other solutions are thus used to reduce the mismatch effect. This paper compares the performances of the bypassing techniques using traditional (Schottky) bypassing diodes with smart bypassing diodes (SBD). The benchmarking results show that the SBD can be employed to improve the performance during shading in PV systems. More specifically, the use of SBDs with series-connected MOSFETs leads to a reduction of the reverse voltage with a higher output power under various shading conditions, when compared to the case with traditional bypassing diodes. The reduction in the reserve voltage contributes to lowered temperature in shaded cells, and thus increases the reliability of the PV modules.
KW - Photovoltaic (PV) systems
KW - Mismatch faults
KW - Traditional (Schottky) bypassing diodes
KW - Smart bypassing diodes (SBD)
KW - Reliability
UR - http://www.scopus.com/inward/record.url?scp=85067130598&partnerID=8YFLogxK
U2 - 10.1109/APEC.2019.8722259
DO - 10.1109/APEC.2019.8722259
M3 - Article in proceeding
T3 - IEEE Applied Power Electronics Conference and Exposition (APEC)
SP - 3164
EP - 3168
BT - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
PB - IEEE Press
T2 - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Y2 - 17 March 2019 through 21 March 2019
ER -