A novel photovoltaic module quick regulate mppt algorithm for uniform irradiation and partial shading conditions

Hwa Dong Liu, Shiue Der Lu, Yu Lin Lee, Chang Hua Lin*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

摘要

This study proposed a new photovoltaic module quick regulate (PVM-QR) maximum power point tracking (MPPT) algorithm, which can eliminate the disturbance problem of the hill-climbing (HC) algorithm, especially under low irradiance level and partial shading conditions (PSC). This proposed algorithm has the advantage that it only uses the detection photovoltaic module (PVM) impedance and the open-circuit voltage to simply and quickly calculate the PVM temperature, the irradiance level, and then the key factor parameter u. To achieve the MPPT quickly and accurately, this proposed algorithm is developed for the prediction of the best MPPT duty cycle based on the irradiance level, parameter u, and load. This study verified the proposed MPPT by the measurement results, where the HC algorithm MPPT has 95% efficiency at 0.55 kW/m2 but diverges at 0.2 kW/m2 under uniform irradiation conditions (UIC), and the proposed MPPT algorithm has an improved efficiency (99%) under the same conditions. Moreover, the proposed MPPT algorithm has 99% efficiency under PSC, while the HC algorithm MPPT’s efficiency is 66%. This study implemented a simple-design circuit with the proposed MPPT algorithm for UIC and PSC, where the actual experiment results can also verify that the proposed algorithm performs better than the HC algorithm.

原文英語
文章編號2213
期刊Processes
9
發行號12
DOIs
出版狀態已發佈 - 2021 12月

ASJC Scopus subject areas

  • 生物工程
  • 化學工程(雜項)
  • 製程化學與技術

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