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A Hybrid modulation scheme for AC-AC Dual Active Bridge-based Solid-State Transformer | IEEE Conference Publication | IEEE Xplore

A Hybrid modulation scheme for AC-AC Dual Active Bridge-based Solid-State Transformer


Abstract:

A hybrid modulation scheme for a Dual Active Bridge (DAB) based Solid-State Transformer (SST) is proposed in this paper. The topology consists of an input folding bridge,...Show More

Abstract:

A hybrid modulation scheme for a Dual Active Bridge (DAB) based Solid-State Transformer (SST) is proposed in this paper. The topology consists of an input folding bridge, a DAB DC-DC converter with a half-bridge structure on the primary side, a full-bridge on the secondary side, and an output unfolding bridge. The conventional Phase-Shift Modulation (PSM) control technique exceeds the soft-switching boundary conditions under light load conditions and suffers from high current stress, which lowers the overall efficiency of the DAB-based SST converter. This article employs a hybrid modulation-based control strategy to overcome these limitations. Within this control strategy, an optimal control path for full power range is proposed, which extends the soft-switching range under light load conditions and lowers the current stress. Simulation results are provided to validate the effectiveness of the proposed control strategy.
Date of Conference: 14-17 December 2022
Date Added to IEEE Xplore: 30 March 2023
ISBN Information:
Conference Location: Jaipur, India

I. Introduction

Solid-State Transformer (SST) has recently received much interest, and their potential in future smart grids has been thoroughly examined [1]–[2]. The distribution system benefits from size reduction, controllability, and dependability [2]. The need for an SST topology that can be seamlessly integrated with the requirements of modern distribution grids is growing. It should be efficient, reliable, and simpler.

References

References is not available for this document.