TY - GEN
T1 - Performance of submodule level differential power processing architecture in mismatched PV systems
AU - Dong, Peng
AU - Wen, Huiqing
AU - Chu, Guanying
AU - Xu, Bin
N1 - Funding Information:
This work was supported by the Research development fund of XJTLU (RDF-16-01-10, RDF-17-01-28), Research Enhancement Fund of XJTLU (REF-17-01-02), the Jiangsu Science and Technology Programme (BK20161252), the Suzhou Prospective Application programme (SYG201723), and the XJTLU Key Programme Special Fund (KSF-A-08, KSF-E-13).
Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - In this paper, the voltage equilibrium (VE) method combined with the differential power processing (DPP) architecture is utilized to address the issue of the power loss in the photovoltaic system under mismatch conditions. Specifically, the submodule integrated converters (subMIC) based on the bidirectional flyback converter are used to balance the output power of each submodule by extracting or injecting current to the output nodes of each submodule. The experimental results show that the VE method can significantly improve the total output power of the system and solve the multi-peak problem of the characteristic curve under different mismatch conditions. In addition, the experimental results show that in extreme cases, executing the protection algorithm, the system's maximum output power is not obviously reduced compared to the traditional architecture, which illustrates the necessity for the protection algorithm.
AB - In this paper, the voltage equilibrium (VE) method combined with the differential power processing (DPP) architecture is utilized to address the issue of the power loss in the photovoltaic system under mismatch conditions. Specifically, the submodule integrated converters (subMIC) based on the bidirectional flyback converter are used to balance the output power of each submodule by extracting or injecting current to the output nodes of each submodule. The experimental results show that the VE method can significantly improve the total output power of the system and solve the multi-peak problem of the characteristic curve under different mismatch conditions. In addition, the experimental results show that in extreme cases, executing the protection algorithm, the system's maximum output power is not obviously reduced compared to the traditional architecture, which illustrates the necessity for the protection algorithm.
KW - Differential Power Processing
KW - Partial Shading
KW - Photovoltaic System
KW - Submodule
UR - http://www.scopus.com/inward/record.url?scp=85071949478&partnerID=8YFLogxK
U2 - 10.1109/PEDG.2019.8807710
DO - 10.1109/PEDG.2019.8807710
M3 - Conference Proceeding
AN - SCOPUS:85071949478
T3 - PEDG 2019 - 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems
SP - 999
EP - 1003
BT - PEDG 2019 - 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2019
Y2 - 3 June 2019 through 6 June 2019
ER -