Modified RCC MPPT method for single-stage single-phase grid-connected PV inverters

• Main Authors: Chaiyant Boonmee, Yuttana Kumsuwan
• Format: Journal
• Published: 2018
• Subjects: Engineering; Agricultural and Biological Sciences
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85029684961&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/43656
• Institution: Chiang Mai University

© 2017 KIPE. In this study, a modified ripple correlation control (RCC) maximum-power point-tracking (MPPT) algorithm is proposed for a single-stage single-phase voltage source inverter (VSI) on a grid-connected photovoltaic system (GCPVS). Unlike classic RCC methods, the proposed algorithm does not require high-pass and low-pass filters or the increment of the AC component filter function in the voltage control loop. A simple arithmetic mean function is used to calculate the average value of the photovoltaic (PV) voltage, PV power, and PV voltage ripples for the MPPT of the RCC method. Furthermore, a high-accuracy and high-precision MPPT is achieved. The performance of the proposed algorithm for the single-stage single-phase VSI GCPVS is investigated through simulation and experimental results.