Title: Experimental analysis of boost converter performance with nonideals for sustainable energy applications

Authors: C. Naga Kota Reddy; Ch. Sai Babu

Addresses: Department of Electrical and Electronics Engineering, UCEK (A), JNTU Kakinada, Kakinada, A.P., 533003, India ' Department of Electrical and Electronics Engineering, UCEK (A), JNTU Kakinada, Kakinada, A.P., 533003, India

Abstract: In sustainable energy applications, boost converters are preferred owing to the low voltage profile of sustainable energy sources. Because of their light weight, high reliability, and small size, boost converters play a vital role in biomedical portable devices. In this paper, boost converter performance is examined using nonidealities of semiconductor devices. The impact of such nonidealities on the different parameters is investigated. To compensate for the damage incurred by nonidealities, expressions for output voltage and duty cycle are derived. The expression for voltage gain has been modified as a side effect of these nonidealities. The design equation for the inductor is modified based on these nonidealities. Further, nonidealities based expressions for the average value and ripple of current flowing through the inductor have also been established. Ultimately, these theoretical findings are validated with the results of simulation in MATLAB and hardware setup. In the hardware, the desired output voltage of 24 V is obtained from a 12 V input source by enhancing the duty cycle from 0.5 to 0.5174.

Keywords: sustainable energy sources; ideal boost converter; nonideal boost converter; output voltage; duty cycle; voltage gain; critical inductance; design of inductor; inductor current ripples.

DOI: 10.1504/IJNT.2023.134011

International Journal of Nanotechnology, 2023 Vol.20 No.5/6/7/8/9/10, pp.536 - 555

Received: 15 Jul 2021
Accepted: 29 Oct 2021
Published online: 10 Oct 2023 *

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