Title :
Interface circuit for photovoltaic system based on buck-boost current-source PWM inverter
Author :
Kang, Feel-Soon ; Kim, Cheul-U ; Park, Sung-Jun ; Park, Han-Woong
Author_Institution :
Dept. of Electr. Eng., Pusan Nat. Univ., South Korea
Abstract :
This paper presents a current-source-inverter based on a buck-boost configuration and its application for residential photovoltaic system. The proposed circuit has five switches. Among them, only one switch acts as chopping, and the other determine the polarity of output; therefore, it can reduce the switching loss. Because the input inductor current is operated on the discontinuous conduction mode, high power factor can be achieved without additional input current controller. So the overall system shows a simple structure. The operational modes are analysed in depth, and then it was verified through the experimental results using a 150 W prototype.
Keywords :
PWM invertors; choppers (circuits); inductors; photovoltaic power systems; switching convertors; 150 W; buck-boost current-source PWM inverter; chopping switch; discontinuous conduction mode; high power factor; input inductor current; interface circuit; operational modes; output polarity; photovoltaic system; residential photovoltaic system; switches; switching loss reduction; Circuit topology; Costs; Inductors; Photovoltaic systems; Prototypes; Pulse width modulation inverters; Reactive power; Switches; Switching loss; Voltage;
Conference_Titel :
IECON 02 [Industrial Electronics Society, IEEE 2002 28th Annual Conference of the]
Print_ISBN :
0-7803-7474-6
DOI :
10.1109/IECON.2002.1182920
