Title :
Ripple effect on photovoltaic power extraction
Author :
Ceci, Jonatan G. ; Oliva, A.R. ; Mandolesi, P.S.
Author_Institution :
Depto. de Ing. Electr. y de Computadoras, Univ. Nac. del Sur, Bahia Blanca, Argentina
Abstract :
A method for selecting passive component values for an architecture of distributed power converters that optimize the power extraction from a photovoltaic (PV) device (module, substring, etc.) is proposed in this paper. One of the main factors affecting power extraction efficiency is switching ripple. A technique to determine the switching ripple that propagates from the ladder converter to the PV device is discussed and validated through parametric simulations. A minimum 99% extraction efficiency is obtained selecting the passive components to limit the maximum current or voltage ripples to approximately 10% of the maximum power point (MPP) current or voltage value, respectively.
Keywords :
distributed power generation; maximum power point trackers; photovoltaic power systems; MPP current; PV device; distributed power converters; ladder converter; maximum power point current; photovoltaic device; photovoltaic power extraction; power extraction; power extraction efficiency; ripple effect; switching ripple; Capacitors; Inductance; Inductors; Mathematical model; Radiation effects; Switches; Topology; Design optimization; distributed power generation; energy extraction efficiency; ladder converters; maximum power point trackers;
Conference_Titel :
Micro-Nanoelectronics, Technology and Applications (EAMTA), 2014 Argentine Conference on
Conference_Location :
Mendoza
Print_ISBN :
978-987-1907-86-1
DOI :
10.1109/EAMTA.2014.6906076
