Investigation in the PV Converter Smoothing Circuit Size Reduction vs. Loss in Energy Capturing

The Photovoltaic (PV) cell which can convert directly sunlight into electricity has a nonlinear power vs. voltage curve, and a digital controlled power converter is required to implement the Maximum Power Point Tracker (MPPT) function. This paper aims to investigate the influence of current ripple amplitude which results from the operation of power converter on the efficiency of capturing the available solar energy. By simulation, a tradeoff between the filter size, the current ripple amplitude and the solar energy capture efficiency is found.

[1]  M. Vitelli,et al.  Optimizing sampling rate of P&O MPPT technique , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[2]  I. Glasner,et al.  Advantage of boost vs. buck topology for maximum power point tracker in photovoltaic systems , 1996, Proceedings of 19th Convention of Electrical and Electronics Engineers in Israel.