Configuration Method for Redundant Sub-modules of Modular Multi-level Converter

Author(s): Guojun Tan , Zecheng Li* , Tao Han .

Journal Name: Recent Advances in Electrical & Electronic Engineering

Volume 11 , Issue 4 , 2018

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Abstract:

Background: In this paper, we propose a redundancy configuration method for Modular Multi-level Converters (MMCs), to improve system reliability and sub-module efficiency, and for maximizing the redundant sub-module value rate.

Methods: We establish a set of objective functions using these aims, to obtain the optimal number of redundant sub-modules. To aid in the evaluation of the configuration method, we analyzed the MMC topology and the operational principle of the sub-modules. We present concrete steps for module redundancy optimization based on the redundant protection scheme used with the MMC.

Result: The results of simulations modelling the operation of the configuration algorithm prove that the number of redundant sub-modules can be effectively allocated using the proposed method while ensuring the reliable operation of the system.

Keywords: Configuration, Modular Multilevel Converter (MMC), redundant sub-modules, MMC system, IGBT input, calculation method.

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Article Details

VOLUME: 11
ISSUE: 4
Year: 2018
Page: [510 - 517]
Pages: 8
DOI: 10.2174/2352096511666180518102923
Price: $58

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