Variable step size maximum power point tracker using a single variable for stand-alone battery storage pv systems

Emad M. Ahmed, Masahito Shoyama

研究成果: Contribution to journalArticle査読

43 被引用数 (Scopus)

抄録

The subject of variable step size maximum power point tracking (MPPT) algorithms has been addressed in the literature. However, most of the addressed algorithms tune the variable step size according to two variables: the photovoltaic (PV) array voltage (VPV ) and the PV array current (IPV ). Therefore, both the PV array current and voltage have to be measured. Recently, maximum power point trackers that are based on a single variable (IPV or VPV ) have received a great deal of attention due to their simplicity and ease of implementation, when compared to other tracking techniques. In this paper, two methods have been proposed to design a variable step size MPPT algorithm using only a single current sensor for stand-alone battery storage PV systems. These methods utilize only the relationship between the PV array measured current and the converter duty cycle (D) to automatically adapt the step change in the duty cycle to reach the maximum power point (MPP) of the PV array. Detailed analyses and flowcharts of the proposed methods are included. Moreover, a comparison has been made between the proposed methods to investigate their performance in the transient and steady states. Finally, experimental results with field programmable gate arrays (FPGAs) are presented to verify the performance of the proposed methods.

本文言語英語
ページ(範囲)218-227
ページ数10
ジャーナルJournal of Power Electronics
11
2
DOI
出版ステータス出版済み - 3 2011

All Science Journal Classification (ASJC) codes

  • 制御およびシステム工学
  • 電子工学および電気工学

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