Adaptive Multi-Mode Single-Step Power Tracking for Microinverter-Based Photovoltaic System

Derick Mathew, J. Prasanth Ram, Jihun Ha, Jung Wook Park, Young Jin Kim

Research output: Contribution to journalArticlepeer-review

Abstract

The conventional de-load power tracking algorithm, utilizing a perturb and observe method, manifests deficiencies in terms of speed, stability, and efficacy in identifying operating points within the inverter's voltage range. In this article, the Adaptive Multi-Mode Single-Step Power Tracking (AMSPT) algorithm is introduced, showcasing rapid adaptability to varying solar irradiation conditions, while mitigating energy losses and enhancing overall operational stability. Its key innovation lies in efficiently pinpointing the operating point within the inverter's specified voltage range through a single step. Upon achieving the desired operating point, the algorithm promptly suppresses oscillatory behavior, expediting the settling process and minimizing deviations around the set-point. This article substantiates the superiority of the AMSPT algorithm over existing methods, showcasing remarkable advancements in tracking accuracy, power fluctuations, and energy discrepancies across diverse PV system case studies. Comprehensive validation through theoretical analysis, simulations, and experimental setups meticulously confirms the claimed benefits of the proposed method.

Original languageEnglish
Pages (from-to)2651-2662
Number of pages12
JournalIEEE Transactions on Sustainable Energy
Volume15
Issue number4
DOIs
Publication statusPublished - 2024

Bibliographical note

Publisher Copyright:
© 2024 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment

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