A modified H-bridge multilevel inverter for photovoltaic system

作者：Abd Rahim Nasrudin^*; Chaniago Krismadinata; Selvaraja Jeyraj

来源：IEICE Electronics Express, 2010, 7(11): 751-758.

DOI：10.1587/elex.7.751

• multilevel inverter
• PWM
• current control

This paper presents a modified H-bridge seven-level single-phase grid-connected inverter for photovoltaic system with a novel pulse-width-modulated (PWM) control scheme. The inverter is capable of producing seven output-voltage levels (V-dc, 2V(dc)/3, V-dc/3, 0, -V-dc, -2V(dc)/3, -V-dc/3) from the dc supply voltage. Perturb and Observe (P&O) algorithm is used to extract maximum power from the PV module. MPPT and current control algorithm were implemented in an eZdsp board, TMS320F2812. The proposed system was implemented in a prototype.

• 出版日期2010-6-10