Family of Integrated Multi-Input Multi-Output DC-DC Power Converters

TL;DR

This paper introduces a family of integrated multi-input multi-output DC-DC converters with flexible configurations, capable of bidirectional power flow, suitable for diverse energy systems, and validated through experimental prototypes.

Contribution

The paper presents a novel family of multiport converters with a three-switch design, extending to n-switch configurations, and provides detailed analysis and experimental validation.

Findings

Successful implementation of bidirectional multiport converters

Versatile configurations for various energy applications

Experimental verification of the proposed converter performance

Abstract

This paper explores a family of integrated multiport converters using three-switch which can provide single-input dual-output (SIDO) or dual-input single-output (DISO) with bidirectional power flow between any two ports. The concept can be extended to the n-switch converters to achieve more inputs and/or outputs. The proposed converters can be applied to interfacing sources, loads and storage elements having different voltage levels in applications such as dc nanogrids, electric vehicle, multiport power supplies, distributed generation systems. Various topological configurations of the integrated multiport n-switch converter are investigated. The operating principles and PWM control strategy of these converters are analyzed in detail. A universalized hardware prototype is built, experimental results are provided for verification.