S&M Young Researcher Paper Award 2020
Recipients: Ding Jiao, Zao Ni, Jiachou Wang, and Xinxin Li [Winner's comments]
Paper: High Fill Factor Array of Piezoelectric Micromachined
Ultrasonic Transducers with Large Quality Factor

S&M Young Researcher Paper Award 2021
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Vol. 32, No. 8(2), S&M2292

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Sensors and Materials, Volume 33, Number 8(4) (2021)
Copyright(C) MYU K.K.
pp. 2959-2969
S&M2667 Research Paper of Special Issue
https://doi.org/10.18494/SAM.2021.3226
Published in advance: June 11, 2021
Published: August 31, 2021

Novel Control Strategy to Improve Photovoltaic System Performance under Low Irradiance Level [PDF]

Chang-Hua Lin, Hwa-Dong Liu, and Shiue-Der Lu

(Received December 17, 2020; Accepted June 8, 2021)

Keywords: maximum power point tracking, solar power, irradiance change per unit area threshold control

A novel algorithm for maximum power point tracking (MPPT) in solar power generation systems was proposed and compared with the conventional methods of hill climbing (HC) and perturbation and observation (P&O) algorithms. The two conventional algorithms are prone to divergence under low irradiance levels (<150 W/m2), resulting in difficulties in MPPT. The MPPT technique proposed in this study integrates irradiance change per unit area threshold control (ICPUATC) into the P&O algorithm. The proposed algorithm can facilitate quick and precise convergence at the maximum power point (MPP) for a photovoltaic module under a low irradiance level of 65 W/m2. The proposed and HC algorithms were compared for irradiance levels of 480, 140, and 65 W/m2, and the proposed algorithm consistently yielded better results than did the HC algorithm.

Corresponding author: Shiue-Der Lu


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Cite this article
Chang-Hua Lin, Hwa-Dong Liu, and Shiue-Der Lu, Novel Control Strategy to Improve Photovoltaic System Performance under Low Irradiance Level, Sens. Mater., Vol. 33, No. 8, 2021, p. 2959-2969.



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