Cited by 199HVDC Systems and Fault ProtectionMultilevel Inverters and ConvertersReliability and Maintenance Optimization

Reliability and Cost based Redundancy Design for Modular Multilevel Converter

Open access
Tu, Pengfei, Yang, Shunfeng, Wang, Peng·2018·IEEE Transactions on Industrial Electronics

Abstract

The modular multilevel converter (MMC) is very attractive in a high-voltage dc (HVdc) transmission system due to its high modularity and scalability. It is also a promising candidate for medium-voltage applications. An MMC has many power devices that lead to a relatively low reliability based only on a direct failure rate calculation. The reliability of an MMC can be improved by redundant designs. Lots of redundant designs and strategies have been proposed in recent years, while their reliability improvements are hardly quantified in existing literature. In practice, reliability improvement with constraint costs is a challenge. In view of these, this paper proposes a reliability and cost assessment scheme for MMC redundant designs and strategies. Reliability and cost are quantified for comparison purposes. A medium-voltage application is used to demonstrate the reliability and cost assessment scheme. The reliability analysis is based on a combinatorial model and the Poisson process model. The cost analysis focuses on capital cost and power loss cost. The proposed reliability and cost analysis scheme provides a guideline for MMC redundant design and redundant strategy selection.

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  • There is a trade-off between submodule redundancy and cost in MMC design.

    “There is a trade-off between submodule redundancy and cost, which should be evaluated for each project to define redundancy design and operation strategy [139].”

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1 of the 39 references couldn’t be matched to a known paper.

Research works printed but not linked: 5

  1. J. V. Farias, A. F. Cupertino, H. Pereira, S. Seleme, and R. Teodorescu, "On the Redundancy Strategies of Modular Multilevel Converters," IEEE Transactions on Power Delivery, vol. PP, pp. 1-1, 2017.
  2. R. Burkart and J. W. Kolar, "Component cost models for multi-objective optimizations of switched-mode power converters," in 2013 IEEE Energy Conversion Congress and Exposition, 2013, pp. 2139-2146.
  3. Y. Xue, B. Ge, and F. Z. Peng, "Reliability, efficiency, and cost comparisons of MW-scale photovoltaic inverters," in Energy Conversion Congress and Exposition (ECCE), 2012 IEEE, 2012, pp. 1627-1634.
  4. M. Rahimo, A. Kopta, and S. Eicher, "Next generation planar IGBTs with SPT+ technology," Power electronics Europe Magazine, vol. 6, pp. 1-5, 2005.
  5. S. Allebrod, R. Hamerski, and R. Marquardt, "New transformerless, scalable modular multilevel converters for HVDC-transmission," in Power Electronics Specialists Conference, 2008. PESC 2008. IEEE, 2008, pp. 174-179.

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Authors
Tu, P., Yang, S., & Wang, P.
Affiliations
Nanyang Technological University (SG)
Venue
IEEE Transactions on Industrial Electronics
Published
2018
Pages
1-1
ISSN
  • 0278-0046 (ISSN-L)
  • 1557-9948
OpenAlex
W2784130885
Cited by
199
References
39
Citations by year
2026: 7 · 2025: 12 · 2024: 25 · 2023: 23 · 2022: 29 · 2021: 32 · 2020: 40 · 2019: 25 · 2018: 6
FWCI
9.86
Type
journal article
Language
en
Open access
Locations
  • IEEE Transactions on Industrial Electronics (publishedVersion)
  • DR-NTU (Nanyang Technological University) (submittedVersion)
Funders
  • National Research Foundation
  • National Research Foundation Singapore
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › HVDC Systems and Fault Protection
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Multilevel Inverters and Converters
  • Physical Sciences › Engineering › Safety, Risk, Reliability and Quality › Reliability and Maintenance Optimization
Keywords
modular multilevel converter, redundancy design, reliability analysis, cost analysis, Poisson process model, capital costs, power loss cost, medium voltage applications, HVDC transmission

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