Author(s)

Ajayi Samuel Taiwo^*, Joseph Yakubu Oricha

Electrical and Computer Engineering Department, Ahmadu Bello University, Zaria, Nigeria.

The paper presents modeling approach of a Single Ended Primary Inductance Converter (SEPIC) system. The complete model derivation of the SEPIC converter system has been presented in different modes of operation. Steady state and small signal analysis was carried out on the converter dynamic equations using the method of Harmonic balance Technique. The steady state variables and their respective ripple quantities obtained were plotted against duty ratio D. The results obtained for a supply input voltage of 60 volts to the converter at a duty ratio of D = 0.8 , compares well with simulation results.

SEPIC Converter; Switching Function; Harmonic Balance Technique

Taiwo, A. and Oricha, J. (2014) Modeling, Steady-State Analysis of a SEPIC dc-dc Converter Based on Switching Function and Harmonic Balance Technique. Journal of Power and Energy Engineering, 2, 704-711. doi: 10.4236/jpee.2014.24094.