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32 19 Vol.32 No.19 Jul. 5, 2012
24 2012 7 5 Proceedings of the CSEE ©2012 Chin.Soc.for Elec.Eng.
0258-8013 (2012) 19-0024-06 TM 615 A 470 40
⋅
( 410082)
Inconsistency Detection of Photovoltaic Cells and Its Applications
XIE Sanjun, RONG Fei, CHEN Yandong, LUO An
(College of Electrical and Information Engineering, Hunan University, Changsha 410082, Hunan Province, China)
ABSTRACT: For the inconsistency of photovoltaic (PV) cells
in the photovoltaic array, a novel method of the PV
inconsistency detection was proposed in this paper. The
piecewise linear interpolation method and the least squares
method are combined to calculate the inconsistency of PVs in
the proposed method. Compared with the traditional maximum
power distinguish method, the proposed method enhances the 0
detect effects. Firstly, simulation results prove its validation.
Secondly, a PV grid-connected generation system was built,
where the hysteresis current control method was used to control (
grid currents. The proposed method and the traditional method )
are verified separately and compared in the PV generation [1-3]
system. The experiment results prove the proposed method of
the piecewise linear interpolation method and least squares has
better effects and accuracy than the maximum power
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