Title :
Cascaded H-bridge multilevel converter for grid connected photovoltaic generators with independent maximum power point tracking of each solar array
Author :
Alonso, O. ; Sanchis, P. ; Gubía, E. ; Marroyo, L.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. Publica de Navarra, Pamplona, Spain
Abstract :
This paper introduces a new control method and proportional PWM modulation of the cascaded H-bridge multilevel converter for grid-connected photovoltaic systems. This control makes each H-bridge module supply different power levels, allowing therefore for each module an independent maximum power point tracking of the corresponding photovoltaic array.
Keywords :
PWM power convertors; bridge circuits; photovoltaic power systems; power control; solar cell arrays; 144 V; 178 V; 2000 Hz; 220 V; 4.72 A; 5 A; 50 Hz; 680 W; cascaded H-bridge multilevel converter; grid connected photovoltaic generators; independent maximum power point tracking; power control; proportional PWM modulation; solar array; Circuits; Mesh generation; Photovoltaic systems; Power generation; Power harmonic filters; Proportional control; Pulse width modulation; Solar energy; Solar power generation; Voltage;
Conference_Titel :
Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual
Print_ISBN :
0-7803-7754-0
DOI :
10.1109/PESC.2003.1218146
