Dynamic analysis an‎d modeling of a high step-up DC-DC converter based on boost structure with coupled inductor considering parasitic effects

10/20/2026 12:00:00 AM

A common foundation for many solar-based DC-DC boost converters is the coupled inductor boost topology. This structure is favored in industry due to its simple implementation an‎d minimal component count. Moreover, it mitigates the limitations imposed by extreme duty cycles. However, in many recent studies, due to the added complexity introduced by the coupled inductor, a detailed analysis is often omitted, an‎d approximate equations are used instead. In this research, the coupled inductor boost converter topology is thoroughly analyzed, an‎d its operating equations are derived in detail. Based on a comprehensive analysis of the converterʹs performance, a complete an‎d comprehensive relationship has been derived for the calculation of these relations. The accuracy of the derived relations is validated through both simulation an‎d experimental implementation. A prototype circuit was designed an‎d built with an input voltage of 10V, an output voltage of approximately 40V, a power rating of about 12W, an‎d an operating frequency of 40 kHz. The derived equations demonstrate an accuracy of over 95% in most operating conditions. Additionally, the usability of these equations has improved compared to previous studies. Finally, based on the derived equations, the feasibility of modeling the converter using conventional methods is eva‎luated.

مبدل بوست سلف جفت شده , مبدل DC-DC , بهره ولتاژ , سيستم انرژي خورشيدي , مبدل افزاينده , الكترونيك قدرت , مدل‌سازي تحليلي

DC-DC Converter , Coupled Inductor Boost Converter , Solar Power System , Voltage Gain , Power Electronics , High Step-Up Converter , Analytical Modeling

Mostafa Rastegar

Dr. Abrishamifar