Power and Signal Dual Modulation in DC-AC with Cascaded H-Bridge Converter

Yuanpeng Chen; Zhecheng Zhang; Ruichi Wang; Yue Hui; Keming Liu; Hao Chen; Jiande Wu; Xiangning He

doi:10.17775/CSEEJPES.2025.02960

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Power and Signal Dual Modulation in DC-AC with Cascaded H-Bridge Converter

Special Issue Commemorating the 10<sup>th</sup> Anniversary of CSEE Journal of Power and Energy Systems | 更新时间：2026-10-16

- Power and Signal Dual Modulation in DC-AC with Cascaded H-Bridge Converter
- CSEE Journal of Power and Energy Systems Vol. 11, Issue 6, Pages: 2832-2842(2025)
- 作者机构：
  
  1. College of Electrical Engineering, Zhejiang University,Hangzhou,China
  2. Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough, U.K
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2025.02960
  CLC：
- Published：01 November 2025
- 稿件说明：
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Yuanpeng Chen, Zhecheng Zhang, Ruichi Wang, et al. Power and Signal Dual Modulation in DC-AC with Cascaded H-Bridge Converter[J]. CSEE Journal of Power and Energy Systems, 2025, 11(6): 2832-2842.
DOI：

Yuanpeng Chen, Zhecheng Zhang, Ruichi Wang, et al. Power and Signal Dual Modulation in DC-AC with Cascaded H-Bridge Converter[J]. CSEE Journal of Power and Energy Systems, 2025, 11(6): 2832-2842. DOI： 10.17775/CSEEJPES.2025.02960.

摘要

Abstract

In AC microgrids (ACMG)

hierarchical control is widely adopted

and conventionally

communication links are required between converters to transmit control instructions. However

establishing these communication links increases system complexity and introduces communication delays. Consequently

there is an urgent need for highly integrated communication schemes in ACMG. Power and signal dual modulation (PSDM) offers an integrated communication solution that simultaneously modulates and transmits power and data in power electronic systems. In contrast

existing research primarily focuses on DC systems. In this paper

PSDM for cascaded H-Bridge multilevel inverters is proposed. The communication function is integrated into the power conversion process by modulating the data around the zero-crossing point of AC bus voltage

without interfering with power transmission. The harmonic effect and power losses introduced by this novel strategy in power transmission are further explored

offering theoretical guidance for designing DC-AC PSDM systems. The proposed method has been implemented in an experimental platform of ACMG. The experimental results validated the proposed modulation scheme for full-duplex communication with a bit rate of 300bps.

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