Title :
Distributed max power point tracking for photovoltaic arrays
Author :
Tsao, Perry ; Sarhan, Sameh ; Jorio, Ismail
Abstract :
Several architectures for implementing distributed max power point tracking (MPPT) are discussed, and the characteristics of distributed MPPT as implemented in National Semiconductor´s Solarmagic¿ Power Optimizer are described in detail. A general method for calculating the max power voltage and current range for a string with distributed MPPT is presented. Simulation and experimental results demonstrating the performance benefit of distributed MPPT over centralized MPPT in a photovoltaic (PV) array with shading are described.
Keywords :
solar cell arrays; Solarmagic¿; distributed max power point tracking; photovoltaic arrays; photovoltaic systems; power optimizer; Capacitors; DC-DC power converters; Feeds; Impedance; Inverters; Photovoltaic systems; Power electronics; Power system reliability; Solar power generation; Voltage;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2009 34th IEEE
Conference_Location :
Philadelphia, PA
Print_ISBN :
978-1-4244-2949-3
Electronic_ISBN :
0160-8371
DOI :
10.1109/PVSC.2009.5411351