Simple and Unified Voltage Mode Control Strategy for DC-DC Boost Converters

Boost converters (BCs) are of various types that differ in dynamics and order. However, existing control strategies are often limited to a particular kind of BC, and most are complex, limiting their usage in practical applications. A proportional-integral (PI) controller design method based on the moment-matching approach is suggested to address this gap. The adjustable parameter of the PI controller is selected for the required maximum sensitivity. The efficacy of this unified approach in maintaining the output voltage of converters as per user-defined reference is demonstrated on benchmark models of BC and High Gain Boost Converter (HGBC). Results show faster dynamic performance and settling time than some contemporary PI designs (<tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$H_{\infty}$</tex> and internal model control-based) while tracking the reference voltage. Performance enhancement achieved by the suggested design is quantified in terms of time-domain performance measures.