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A Variable Step Size INC MPPT Method for PV Systems

Fangrui Liu, Shanxu Duan, Fei Liu, Bangyin Liu, Yong Kang·2008·IEEE Transactions on Industrial Electronics

Abstract

Maximum power point tracking (MPPT) techniques are employed in photovoltaic (PV) systems to make full utilization of PV array output power which depends on solar irradiation and ambient temperature. Among all the MPPT strategies, the incremental conductance (INC) algorithm is widely used due to the high tracking accuracy at steady state and good adaptability to the rapidly changing atmospheric conditions. In this paper, a modified variable step size INC MPPT algorithm is proposed, which automatically adjusts the step size to track the PV array maximum power point. Compared with the conventional fixed step size method, the proposed approach can effectively improve the MPPT speed and accuracy simultaneously. Furthermore, it is simple and can be easily implemented in digital signal processors. A theoretical analysis and the design principle of the proposed method are provided and its feasibility is also verified by simulation and experimental results.

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Metadata

Authors
Liu, F., Duan, S., Liu, F., Liu, B., & Kang, Y.
Venue
IEEE Transactions on Industrial Electronics
Published
2008-07
Volume
55
Issue
7
Pages
2622-2628
ISSN
0278-0046 (ISSN-L)
OpenAlex
W2155180659
Cited by
1,313
References
12
FWCI
23.39
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: A Variable Step Size INC MPPT Method for PV Systems. https://app.cochat.ai/papers/10.1109/tie.2008.920550
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Liu, F., Duan, S., Liu, F., Liu, B., & Kang, Y. (2008). A Variable Step Size INC MPPT Method for PV Systems. IEEE Transactions on Industrial Electronics. https://doi.org/10.1109/tie.2008.920550

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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