Performance Evaluation of Basic, Modified, and Advanced DC-DC Boost Converters Used with PV System

This paper presents the performance analysis and comparison of various DC-DC converters that are utilized to step up the output voltages in DC system. These converters are classified as basic, modified, and advanced boost DC-DC converter. Its capability to transform a low-level voltage to a high-level voltage or vice versa is an advantage in power electronics. To transform its voltage level value, various types of converters are used (basic converters) like boost, buck-boost, SEPIC (single end primary inductor converter), Zeta, and Cuk converter, but these converters lag in some performance parameters, so modified converters were preferred. The modified DC-DC converter used in this paper is interleaved, integrated boost-Cuk (IBC), modified SEPIC converter (MSC), single-switch converter (SSC), and two-switch buck-boost (TSBB) converter. Recently developed advanced boost converters are switched-capacitor boost converter (SCBC) and a stackable switching boost converter (SSBC) which are utilized nowadays in various applications. MATLAB/Simulink software is used in this paper, to simulate (compare) and analyze the output performances of different converters. In last, all the performance parameters were compared and concluded that in the basic converter SEPIC and Cuk converter, in modified converter interleaved and IBC converter, and in advanced DC-DC boost developed converter, switched-capacitor boost converter can be used in a PV system. The analysis of SEPIC, interleaved, and SCBC is also shown on PV system using fuzzy logic-based MPPT and concluded that SCBC has a better response as in output the ripple is very less in comparison to two other fuzzy logic-based converters.