作者: R. Leyva , C. Alonso , I. Queinnec , A. Cid-Pastor , D. Lagrange
DOI: 10.1109/TAES.2006.1603420
关键词:
摘要: A stability analysis for a maximum power point tracking (MPPT) scheme based on extremum-seeking control is developed photovoltaic (PV) array supplying dc-to-dc switching converter. The global of the algorithm demonstrated by means Lyapunov's approach. Subsequently, applied to an MPPT system "perturb and observe" method. steady-state behavior PV with characterized stable oscillation around point. leads coordinates increasing or decreasing linearly time voltage. Off-line measurements are not required law, which implemented analog multiplier, standard operational amplifiers, flip-flop circuit pulsewidth modulator. effectiveness proposed experimentally under different operating conditions.