Title :
Stability problems and input impedance improvement for cascaded power electronic systems
Author :
Zhang, J.M. ; Xie, X.G. ; Jiao, D.Z. ; Qian, Zhaoming
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
This paper reviews the instability problem and the analysis methods for the cascaded power electronics system. Based on the review, a compromised method is proposed. Due to the fact that the instability is caused by impedance interaction, analysis and improvement approaches for the input impedances of both PFC converters and DC/DC converters are presented in this paper. Simulation results verify the theoretical analysis.
Keywords :
DC-DC power convertors; electric impedance; power electronics; power factor correction; DC/DC converters; PFC converters; cascaded power electronic systems; impedance interaction; instability problem; Aerospace industry; Application software; Costs; DC-DC power converters; Educational institutions; Filters; Impedance; Inverters; Power electronics; Power system stability;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE
Print_ISBN :
0-7803-8269-2
DOI :
10.1109/APEC.2004.1295947
