Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Modified SPWM Control for the Single-Stage Differential Boost Inverter Applying in Battery Energy Storage System

Version 1 : Received: 2 August 2021 / Approved: 3 August 2021 / Online: 3 August 2021 (12:19:45 CEST)

How to cite: Lee, Y.; Chen, K.; Pai, K.; Lin, C.; Cheng, Y. Modified SPWM Control for the Single-Stage Differential Boost Inverter Applying in Battery Energy Storage System. Preprints 2021, 2021080076 (doi: 10.20944/preprints202108.0076.v1). Lee, Y.; Chen, K.; Pai, K.; Lin, C.; Cheng, Y. Modified SPWM Control for the Single-Stage Differential Boost Inverter Applying in Battery Energy Storage System. Preprints 2021, 2021080076 (doi: 10.20944/preprints202108.0076.v1).

Abstract

This study aims to implement a SSDBI (single-stage differential boost inverter, SSDBI) applying in a single-stage BESS (battery energy storage system, BESS) topology, which can supply power from lower voltage battery module to AC load. Compared with the common two-stage topology, which has a two-stage converter and higher voltage battery module array, the single-stage topology can reduce the number of cells and components, and improve the power density. In addition, a modified SPWM control was proposed to reduce the control complexity of the SSDBI while improving the THD of the inverter. The modified SPWM control can reduce the duty ratio of the SSDBI and the stress on the components to improve the AC voltage output waveform and reduce the THD value about 2.654%.

Keywords

boost inverter; modified SPWM; differential inverter

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