On Converter Fault Tolerance in MMC-HVDC Systems: A Comprehensive Survey

Farias, João Victor Matos; Cupertino, Allan Fagner; Pereira, Heverton A.; Seleme, Seleme Isaac; Teodorescu, Remus

doi:10.1109/jestpe.2020.3032393

Cited by 31 publications

(17 citation statements)

References 64 publications

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“…6, is one of the popular converter topologies used in highpower medium-voltage motor drives to achieve mediumvoltage with low harmonic distortion [46]. The wide adoption of Cascaded Multilevel Converters (CMC) and Modular Multilevel Converter (MMC) in the high-voltage direct current (HVDC) industry is mainly due to their modularity, scalability, and inherent fault tolerance [47][48][49]. It is composed of a number of modular H-bridge power cells and isolated dc voltage power sources, which can be obtained from the phase-shifting transformer and diode rectifiers [50].…”

Section: Fault Isolationmentioning

confidence: 99%

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Fault Management Techniques to Enhance the Reliability of Power Electronic Converters: An Overview

et al. 2023

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The reliability of power electronic converters is a major concern in industrial applications because of using prone-to-failure elements such as high-power semiconductor devices and electronic capacitors. Hence, designing fault-tolerant inverters has been of great interest among researchers in both academia and industry over the last decade. Among the three stages of fault management, compensating the fault is the most important and challenging part. The techniques for fault compensation can be classified into three groups: hardware redundancy methods which use extra switches, legs, or modules to replace the faulty parts directly or indirectly, switching states redundancy methods which are about omitting and replacing the impossible switching states, and unbalance compensation including the techniques to compensate for the unbalances in the system caused by a fault. In this paper, an overview of fault-tolerant inverters is presented. A classification of fault-tolerant inverters is demonstrated and major cases in each of its categories are explained.

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Section: Fault Isolationmentioning

confidence: 99%

“…The CMC topology (Fig. 7) has inherent module-level redundancy [47,51]. If a module e.g., 𝐴 1 , experiences failure, it is bypassed by the TRIAC 𝑇 𝐴1 and the corresponding healthy modules of two other phases which are 𝐵 1 and 𝐶 1 can be bypassed for making the voltage balanced [50].…”

Section: Fault Isolationmentioning

confidence: 99%

Fault Management Techniques to Enhance the Reliability of Power Electronic Converters: An Overview

et al. 2023

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“…), motor drive [1], [6], [7], grid-connected applications [8]- [11] and renewable energy [12]- [15]. These converters have many advantages: high power capacity, better power quality (reduced total harmonic distortion THD for AC voltage and current), reduced blocking voltage requirement for the power switches, and fault-tolerant capability [8], [16], [17]. Among the different MLC topologies, some converters such as the cascaded H-bridge inverter, the Neutral Point Clamped (NPC), the T-Type (or Neutral-Point Piloted (NPP)), and the flying capacitor converters have been used in industrial applications [4], [9], [18], [19].…”

Section: Introductionmentioning

confidence: 99%

Switch Fault Detection and Localization for T-Type Converter

Becker

Jamshidpour

Poure

et al. 2023

IEEE Trans. on Ind. Applicat.

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Over the past decade, multilevel converters have received considerable interest in medium voltage applications. A large number of active switches in a multilevel converter increases the probability of switch failure and decreases the reliability of the system. An open switch fault can lead to a malfunction of the whole system and should be diagnosed as soon as possible. In this paper, an open-switch fault diagnosis method for a five-level H-Bridge T-type converter is presented. The proposed fault detection method and the fault localization algorithm are based on the switching patterns and the converter output voltage level observation. This approach is capable to detect and localize an open circuit fault for all switches. First, it is validated by simulations in Matlab Simulink and Simscape toolbox environments. Experimental results are also presented and discussed to validate the simulation results.

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“…Its modularity provides scalability and fault resilience [2,3]. Not having a physical element connecting the positive and negative terminals reduces the probability of having a fault in the DC link, which may have severe consequences.…”

Section: Introductionmentioning

confidence: 99%

Distributed Input Multiport MMC Based Power Converter for AC and DC Loads

Cano¹,

Rodríguez

Castro³

et al. 2023

IEEE Trans. Power Electron.

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A distributed input multi-port topology is proposed in this work based on the use of a Modular Multilevel Converter (MMC). The Distributed Input Modular Multilevel Converter (DIMMC) is based on the application of an MMC to multi-phases systems, such as multiport generators or multiport transformers. The proposed converter is devised for high voltage and high-power applications with distributed inputs such as ship electric propulsion systems or industrial application available for both ac or dc loads. The main claims of the DIMMC are integration, modularity, scalability and fault tolerance. This work analyzes the steady state behavior of the converter, fault tolerance and the advantages/disadvantage of its application.I.

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On Converter Fault Tolerance in MMC-HVDC Systems: A Comprehensive Survey

Cited by 31 publications

References 64 publications

Fault Management Techniques to Enhance the Reliability of Power Electronic Converters: An Overview

Fault Management Techniques to Enhance the Reliability of Power Electronic Converters: An Overview

Switch Fault Detection and Localization for T-Type Converter

Distributed Input Multiport MMC Based Power Converter for AC and DC Loads

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