Direct MPPT control of PWM converters for extreme transient PV applications

Abstract

Solar panels require of Maximum Power PointTracking algorithms in order to ensure the amount of power extracted is maximized. The control of the power stage connected to the photovoltaic panel, and the MPPT algorithm are traditionally implemented as two independent building blocks, which derives in a relatively slow response. A novel approach is introduced in this work by embedding the MPPT algorithm into the power converter control, allowing faster dynamics, smaller reactive components and reduced switching losses. The scheme being introduced combines MPPT concepts with largesignal geometric control to achieve a high-performance, reliable solution. The theoretical analysis is supported by detailed mathematical procedures and validated by simulations and experimental results.

Intelligent grid interfaced solar water pumping system

“…However, the performance of such algorithms diminishes during transients due to complexity of the algorithm. Improvements in INC algorithm have been suggested by wisely updating the duty ratio of boost converter considering the LC resonance in [18]. Now a days, large induction motor drives (IMDs) and power converters connected to the distribution network are the main cause for the power quality deterioration.…”

“…However, the performance of such algorithms diminishes during transients due to complexity of the algorithm. Improvements in INC algorithm have been suggested by wisely updating the duty ratio of boost converter considering the LC resonance in [18].…”