期刊
SOLAR ENERGY
卷 93, 期 -, 页码 357-367出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2013.04.023
关键词
PV generation systems; MPPT Control; Weather parameters; DC/DC converter
In this paper, on the basis of studying the mathematical models of PV generation systems, two maximum power point tracking (MPPT) control strategies with variable weather parameters are proposed. In these proposed strategies, the direct relationships between the weather parameters and the MPPT control signals have been found. Therefore, the MPPT control of PV generation systems can be implemented by measuring the external environmental parameters directly. As such, the transient-state performance of output power can greatly improved under varying weather conditions. Finally, simulated experiments show that the maximum power points of PV systems can be accurately tracked by using these control strategies, and that the output power of PV system using the first proposed MPPT control strategy has better transient-state performance than that using the conventional perturbation and observation (P&O) method. (C) 2013 Published by Elsevier Ltd.
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