Current-Injected Mode Control for Coupled-Inductor (Ci) Based Boost Converter
Journal Title: International Journal of Innovations in Science and Technology - Year 2025, Vol 7, Issue 5
Abstract
With the increasing demand for electrical energy, there is a need to replace conventional energy resources with renewable energy resources. To properly implement renewable resources at a larger scale, DC/DC converters play a major role. Owing to the variable and unreliable nature of renewable energy resources like PV systems there is a requirement for converters that can regulate the voltage at the output side. High-gain DC/DC converters are preferred for the integration of the solar system in smart grids or microgrids. In this context, a high-gain boost converter utilizing a coupled inductor is a preferable choice. High gain is achieved by the proper selection of the turn’s ratio of coupled inductors in such converters. Whereas to obtain voltage regulation there is a need to employ an effective control scheme. In this paper current-injected control topology has been utilized for coupled inductor-based boost converter. The proposed converter with an appropriate control scheme aims to achieve high voltage gain, reduced switching losses, minimization of current ripple, and less conduction losses while increasing the efficiency of the overall system. A small signal model based on the state space averaging technique is used to derive control to output transfer function for the proposed converter. A hardware prototype has been implemented for the validation of theoretical work. The overall efficiency of the converter is calculated to be around 96% at specific load conditions.
Authors and Affiliations
Ansa Nawaz, Taosif Iqbal, Nabila Nawaz
Keywords
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