Title :
Nonlinear modeling and spectral analysis of Cuk converters
Author :
Chau, K.T. ; Chan, C.C. ; Yao, Jianming
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong
Abstract :
Being a fourth-order circuit, the Cuk converter needs systematic studies of its nonlinear dynamics. In this paper, the investigation of the nonlinear dynamics of Cuk converters is carried out by deriving their nonlinear models and performing their spectral analyses. Nonlinear dynamics, including the additional DC offset, significant subharmonic and higher harmonic spectral contamination as well as the effects of self-intermodulation and cross-intermodulation, due to large-signal perturbations of both the duty ratio and source voltage, are investigated
Keywords :
DC-DC power convertors; Volterra series; harmonic distortion; intermodulation distortion; nonlinear dynamical systems; spectral analysis; Cuk converters; Volterra functional series; additional DC offset; cross-intermodulation effects; duty ratio; fourth-order circuit; higher harmonic spectral contamination; large-signal perturbation; nonlinear dynamics; nonlinear modeling; self-intermodulation effects; source voltage; spectral analysis; subharmonic spectral contamination; Circuit simulation; Contamination; Nonlinear systems; Power electronics; Power system modeling; Pulse width modulation; Pulse width modulation converters; Spectral analysis; Switching circuits; Voltage;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1997. IECON 97. 23rd International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-3932-0
DOI :
10.1109/IECON.1997.671802
