An Improved Phase-Disposition Pulse Width Modulation Method for Hybrid Modular Multilevel Converter-Reference-Cited by-同舟云学术

An Improved Phase-Disposition Pulse Width Modulation Method for Hybrid Modular Multilevel Converter

Published:2023-01-21 Issue:3 Volume:16 Page:1192
ISSN:1996-1073
Container-title:Energies
language:en
Short-container-title:Energies

Author:

Zhou Fayun¹²^ORCID,Xiang Xinxing¹²,Ma Fujun¹^ORCID,Wang Yichao¹,Zhou Fangyuan³,Peng Peng²

Affiliation:

1. College of Electrical and Information Engineering, Hunan University, Changsha 410082, China

2. Hunan Zhongke Electric Co., Ltd., Yueyang 414000, China

3. School of Automation, Central South University, Changsha 410083, China

Abstract

The hybrid modular multilevel converter (MMC) consisting of half-bridge submodules (HBSMs) and full-bridge submodules (FBSMs) is a promising solution for overhead lines high-voltage direct current systems (HVDC) due to the advantages of direct current short circuit fault ride-through (DC-FRT) capability. This paper proposes an improved phase-disposition pulse width modulation (PDPWM) method for the hybrid modular multilevel converter. The number of carriers can be reduced from 3N (N is the number of submodules in each arm) to 6. The theoretical harmonic analysis of the improved PDPWM method for hybrid MMC is performed by using double Fourier integral analysis. The influence of three carrier displacement angles between HBSMs and FBSMs in the upper and lower arms on harmonic characteristics is investigated. The output voltage harmonics minimization PDPWM scheme and circulating current harmonics cancellation PDPWM scheme can be achieved by selecting the optimum carrier displacement angles, respectively. The proposed method for hybrid MMC is verified by the simulation and experimental results.

Funder

Natural Science Foundation of China

Publisher

MDPI AG

Subject

Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction

Link

https://www.mdpi.com/1996-1073/16/3/1192/pdf

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