Title :
A modified Z-source DC-DC converter
Author :
Liqiang Yang ; Dongyuan Qiu ; Bo Zhang ; Guidong Zhang ; Wenxun Xiao
Author_Institution :
Sch. of Electr. Power, South China Univ. of Technol., Guangzhou, China
Abstract :
A modified Z-source dc-dc converter is proposed in this paper. Compared with the conventional Z-source dc-dc converter, the proposed converter can obtain higher voltage gain with lower voltage stresses of switch and the impedance network capacitor and operate with wide-range load. Therefore, the proposed Z-source dc-dc converter not only has lower cost but also has smaller weight and size. The operating principle is analyzed in detail and parameter design of the impedance network is introduced. An experimental prototype was built to verify the validity of the proposed Z-source dc-dc converter.
Keywords :
DC-DC power convertors; capacitors; impedance network capacitor; modified Z-source DC-DC converter; voltage gain; voltage stress; Capacitors; DC-DC power converters; Equations; Impedance; Inductors; Inverters; Switches; Converter circuit; Pulse Width Modulation; Renewable energy systems; Z-source converter;
Conference_Titel :
Power Electronics and Applications (EPE'14-ECCE Europe), 2014 16th European Conference on
Conference_Location :
Lappeenranta
DOI :
10.1109/EPE.2014.6910751
