TY - GEN
T1 - A Parallel-Connection Voltage Equalizer With A Shadow Fault Detection Method
AU - Wang, Xue
AU - Wen, Huiqing
AU - Xu, Peichao
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - Partial shading faults on photovoltaic (PV) modules can lead to power reduction, hot spots, and life reduction. Although the shaded modules can be bypassed by the bypass diodes, the peak power produced is lower than the ideal values. In this paper, a differential power processing scheme with a shadow fault detection method is proposed for two parallel-connection PV strings. The method utilizes normalized error (DE) of the comparison of the I-V curve in normal operation and under partial shading conditions to define whether PV cells dissipated power. When the shadow fault is detected, the proposed voltage equalizer would operate to eliminate the unbalanced voltage and power and improve the peak output power. The voltage equalizer use the series resonant voltage multiplier (SRVM) to realize the aims.
AB - Partial shading faults on photovoltaic (PV) modules can lead to power reduction, hot spots, and life reduction. Although the shaded modules can be bypassed by the bypass diodes, the peak power produced is lower than the ideal values. In this paper, a differential power processing scheme with a shadow fault detection method is proposed for two parallel-connection PV strings. The method utilizes normalized error (DE) of the comparison of the I-V curve in normal operation and under partial shading conditions to define whether PV cells dissipated power. When the shadow fault is detected, the proposed voltage equalizer would operate to eliminate the unbalanced voltage and power and improve the peak output power. The voltage equalizer use the series resonant voltage multiplier (SRVM) to realize the aims.
KW - Differential power processing
KW - photovoltaic
KW - shadow fault detection
KW - voltage equalization
UR - http://www.scopus.com/inward/record.url?scp=85199094937&partnerID=8YFLogxK
U2 - 10.1109/IPEMC-ECCEAsia60879.2024.10567453
DO - 10.1109/IPEMC-ECCEAsia60879.2024.10567453
M3 - Conference Proceeding
AN - SCOPUS:85199094937
T3 - 2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
SP - 168
EP - 172
BT - 2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
Y2 - 17 May 2024 through 20 May 2024
ER -
