Fault Section Identification Protection Algorithm for Modular Multilevel Converter-Based High Voltage DC With a Hybrid Transmission Corridor

Lewis, Phil; Grainger, Brandon M.; Hassan, Hashim; Barchowsky, Ansel; Reed, Gregory F.

doi:10.1109/tie.2016.2582458

Cited by 39 publications

(21 citation statements)

References 23 publications

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“…A fault section identification protection algorithm is presented in Lewis et al on BTB connected MMC‐based HVDC system under different DC fault cases. Mathematical fault analysis is also expressed in depth.…”

Section: Application Areasmentioning

confidence: 99%

“…Circulating current minimization and capacitor voltage balancing are also achieved with proposed control strategy. Applicability of proposed quasi-PR controller is shown by simulation under unbalanced grid voltage conditions.A fault section identification protection algorithm is presented in Lewis et al168 on BTB connected MMC-based HVDC system under different DC fault cases. Mathematical fault analysis is also expressed in depth.…”

mentioning

confidence: 99%

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Recent contributions and future prospects of the modular multilevel converters: A comprehensive review

Kurtoğlu

Eroğlu

Arslan

et al. 2018

Int Trans Electr Energ Syst

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Summary The modular multilevel converters (MMCs) are frequently preferred for medium and high power energy conversion systems thanks to their modular structure and high quality output waveform. The remarkable studies related to the MMC have been carried out in recent years, which are mainly focused on its topology, control, or application. In this paper, MMC circuit topologies consisting of traditional submodule cells and new proposed configurations are introduced, and their control process, modulation techniques, and application areas are discussed in order to provide the readers the current state of the art of MMC technology. A wide part of this article is devoted to demonstrate the recent contributions arising in MMC studies. In this context, this paper not only outlines the circuit topology, control objectives, and applications of the MMC but also presents a comprehensive review, principally in terms of the latest developments of it. Ultimately, detailed proposals and new possible topics are provided to drive future expectations of MMC technology.

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Section: Application Areasmentioning

confidence: 99%

mentioning

confidence: 99%

Recent contributions and future prospects of the modular multilevel converters: A comprehensive review

Kurtoğlu

Eroğlu

Arslan

et al. 2018

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

show abstract

“…Thus, the chances of fault occurrence increase [8]. High reliability is a critical attribute for the power converters in the industry [9], [10]. Thus, proposing fault-tolerant (FT) methods for multilevels converters (MLC) has been a subject of importance for researchers in the field of power electronics [11].…”

Section: Introductionmentioning

confidence: 99%

Fault-Tolerant Space Vector Modulation for Modular Multilevel Converters With Bypassed Faulty Submodules

Aleenejad

Mahmoudi

Jafarishiadeh

et al. 2019

IEEE Trans. Ind. Electron.

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This paper develops a modulation based faulttolerant (FT) strategy for restoring the operation of threephase modular multilevel converters (MMCs) with faulty switches. This FT strategy is based on a proposed modified space vector modulation (SVM) technique that generates balanced line-to-line (line) voltages even in the case of a fault occurrence. In the postfault operation, the proposed strategy is able to restore the fundamental amplitude of the line to the neutral (load) voltages to that of the normal operation condition with a slightly increased voltage stress over the switches in the faulty phase. In this paper, first a brief background about MMCs and SVM technique is provided. Then, the proposed FT strategy and the modified SVM technique are presented. Finally, several simulation and experimental results are provided to validate operation of the proposed strategy.

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“…After the occurrence of a DC-side fault, protection systems are expected to minimize its onerous effects, by initiating clearing actions such as selective tripping of Circuit Breakers (CBs). Consequently, there is a need for fast and discriminative protection systems to enable fast detection and isolation of fault currents [9].…”

Section: Introductionmentioning

confidence: 99%

DC Busbar Protection for HVDC Substations Incorporating Power Restoration Control Based on Dyadic Sub-Band Tree Structures

2019

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In this paper, a new direct current (dc) busbar protection for high voltage dc (HVdc) substations is proposed. The proposed scheme relies on the instantaneous current measurements obtained from the elements (lines and converters) connected to a dc busbar. Such current measurements are analyzed through dyadic sub-band tree structures that are used to extract the specific features, such as polarity, wavelet energy, and wavelet energy ratios. The performance of the scheme is assessed through the transient simulation using the verified PSCAD models. The simulation results revealed that the scheme can: 1) discriminate, effectively and within a very short period of time, between the internal and external faults; 2) detect pole-to-pole and pole-to-ground faults (both solid and highly resistive); 3) switch to healthy busbars (if available) to allow continuous operation; 4) re-energize the converter and restore the power to pre-fault conditions; and 5) remain stable during disturbances and external faults. INDEX TERMS Multi-terminal direct current grids, dyadic sub-band tree structures, HVDC transmission, HVDC circuit breakers.

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Fault Section Identification Protection Algorithm for Modular Multilevel Converter-Based High Voltage DC With a Hybrid Transmission Corridor

Cited by 39 publications

References 23 publications

Recent contributions and future prospects of the modular multilevel converters: A comprehensive review

Recent contributions and future prospects of the modular multilevel converters: A comprehensive review

Fault-Tolerant Space Vector Modulation for Modular Multilevel Converters With Bypassed Faulty Submodules

DC Busbar Protection for HVDC Substations Incorporating Power Restoration Control Based on Dyadic Sub-Band Tree Structures

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