abstract

• This paper presents a multi-loop nonlinear control strategy applied to a DC-DC high-gain active switched-inductor boost converter. The topology of the system is based on the conventional boost converter plus an Active Switching Inductor array. Hence, it comprises two inductors and two power semiconductor devices, leading to an increased output voltage conversion ratio while maintaining acceptable duty cycle limits compared to the traditional DC-DC boost converter. To operate the proposed converter, a simple, robust, and easy-to-tune proportional-integral passivity-based control strategy is developed for the inner current loop. Additionally, an outer voltage loop is designed with a standard proportional-integral action to provide the current reference. The proposed control scheme overcomes the non-minimum phase behavior present in step-up converters and ensures the asymptotic stability of the closed-loop. The performance and effectiveness of the proposed controller are evaluated under numerical simulations, where two scenarios are considered: changes in the output load and changes in the input voltage. © 2024 IEEE.

authors

• Langarica Córdoba Diego
• Martínez Rodríguez Pánfilo Raymundo

publication date

• 2024-01-01

published in

• IEEE Power and Energy Society General Meeting  Proceedings

keywords

• DC-DC power converters; High-gain boost converters; Passivity-based control Power semiconductor devices; BOOST converter; Control strategies; DC/DC power converters; Gain boost; High gain; High-gain boost converter; Multiloop; Passivity based control; Proportional integral; Step-up converter; Boost converter

Digital Object Identifier (DOI)

• 10.1109/PESGM51994.2024.10688500

PubMed ID

start page

end page

volume

issue