Dithering Digital Ripple Correlation Control for Photovoltaic Maximum Power Point Tracking

paper ID: 21

Paper Information

Presented at PECI 2013

Entry on IEEE Xplore

Authors

  • Christopher Barth - Undergraduate Student at University of Illinois

  • Robert Pilawa-Podgurski - Professor at University of Illinois

Abstract

This work develops and simulates a new maximum power point tracking algorithm for use in switching power converters for photovoltaic applications. Building upon previous work in ripple correlation control (RCC), an average-based RCC approach is introduced which makes use of quazi-steady state converter operation to drive the converter duty ratio to the optimal value.

Dithering Digital Ripple Correlation Control (DDRCC) uses routine transitions in the converter duty cycle to generate small, sustained perturbation in the system. By sampling data at two selected times during each perturbation cycle, the converter is able to converge to the maximum power point of the PV array.

Only PDF files up to 5 MB are allowed. Please note that file uploads using Internet Explorer are not supported. Please use an alternative browser such as Firefox, Google Chrome, or Safari.