DC fault protection for modular multi‐level converter‐based HVDC multi‐terminal systems with solid state circuit breakers

Stumpe, Maximilian; Tünnerhoff, Philipp Christian; Dave, Jaykumar; Schnettler, Armin; Ergin, Dominik; Schön, André; Würflinger, Klaus; Schettler, F.

doi:10.1049/iet-gtd.2017.1322

Cited by 33 publications

(16 citation statements)

References 15 publications

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“…The common domain between (15a) and (15b) determines the range of R VL . Three constraints, expressed by (6), (9), and (15), make a feasible final region for R VL during a DC-side fault in which it is assured safe operation of the MMC, voltage regulation for the RACN as well as frequency stability for the RACN. It should be noted that satisfying (6) would be adequate, during the fault, for the IACN because the VL of the IACN limits the current flown through the diodes; this provides enough time interval for the ACCB to disconnect the IACN from the DC-side.…”

Section: Constraint On Frequency Deviationmentioning

confidence: 99%

“…Using DC circuit breakers (DCCB) instead of ACCB is another suggestion [1,[7][8][9][10]; several drawbacks could be named such as having a high cost, design and implementation complications, imposing high transient over-voltages on switching devices and requiring additional equipment such as reinforced surge arresters and insulations [11]. Moreover, the DCCB is unable to prevent a frequency instability too.…”

Section: Introductionmentioning

confidence: 99%

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Design of DC‐side fault current limiter for MMC‐HVDC systems: Safety of the MMC along with frequency stability

Pirhadi

Bina

2020

IET Generation Trans & Dist

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A high voltage direct current system based on the modular multi‐level converter (MMC‐HVDC) is introduced as a suitable device for transmission of bulk powers over long distances. A pole‐to‐pole DC‐side fault is a significant challenge for the MMC‐HVDC system. Three main problems are the appearance of voltage spikes following a fast DC fault current break up, frequency instability due to insufficient inertia (networks such as renewable energy‐based systems) and destruction of anti‐parallel diodes within the MMC due to the high fault current. This study proposes a novel method for limiting DC fault current, improving isolation of the three‐phase AC system from the DC‐side. The suggested design employs high power resistors as virtual load such that continuity in active power flow will be kept on. Further, this prevents frequency deviation from exceeding the allowable limits. Also, transient over‐voltages will be limited which are coming from stray inductances linked with electromagnetic effects of fault current level. Simulations and design practical issues have verified the validity of the proposal by using MATLAB/Simulink.

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Section: Constraint On Frequency Deviationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of DC‐side fault current limiter for MMC‐HVDC systems: Safety of the MMC along with frequency stability

Pirhadi

Bina

2020

IET Generation Trans & Dist

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“…Furthermore, the system is shut down and no real or reactive power is exchanged, which will take a considerable long time to recover for the system [22]. By disconnecting the MMC with ac grid, dc CB (DCCB) can also be used to protect the MMC [23][24][25][26][27][28][29][30][31][32]. Usually, the DCCB is categorised into mechanical, solid-state and hybrid DCCB.…”

Section: Introductionmentioning

confidence: 99%

Review on topology‐based dc short‐circuit fault ride‐through strategies for MMC‐based HVDC system

Wan

Mao

Zhou

et al. 2020

IET Power Electronics

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Modular multilevel converter (MMC) based high-voltage direct-current (HVDC) transmission system is a promising solution to the bulk power transmission over a long distance, especially for renewable energy integration. However, conventional half-bridge submodules MMC topology is susceptible to dc faults. In this study, dc short-circuit fault analysis and a review on recent advances in clearing dc fault current utilising different topologies are presented. Furthermore, the MMC can also work as a static synchronous compensator, producing reactive power to support the grid and improving the stability of the system when dc fault occurs. Finally, the comparison for different topologies in terms of device cost, estimated power losses, dc fault ridethrough capability, and reactive power compensation capability is given.

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“…The DCCB successfully turned off 5.1 kA under 10 kV DC [24]. Stumpe et al [25] present a selective protection concept for unidirectional solid‐state DCCBs and modular multilevel converters (MMCs) to detect line faults in MTDC systems. Sano and Takasaki [26] propose a solid‐state DCCB for the VSC‐HVDC system which can realise DC fault clearing and rapid restoration of power transmission.…”

Section: Introductionmentioning

confidence: 99%

SF₆passive resonance DC circuit breaker combined with a superconducting fault current limiter

Xiang

Cheng

Yang

et al. 2020

IET Generation, Transmission & Distribution

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DC fault protection for modular multi‐level converter‐based HVDC multi‐terminal systems with solid state circuit breakers

Cited by 33 publications

References 15 publications

Design of DC‐side fault current limiter for MMC‐HVDC systems: Safety of the MMC along with frequency stability

Design of DC‐side fault current limiter for MMC‐HVDC systems: Safety of the MMC along with frequency stability

Review on topology‐based dc short‐circuit fault ride‐through strategies for MMC‐based HVDC system

SF₆passive resonance DC circuit breaker combined with a superconducting fault current limiter

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DC fault protection for modular multi‐level converter‐based HVDC multi‐terminal systems with solid state circuit breakers

Cited by 33 publications

References 15 publications

Design of DC‐side fault current limiter for MMC‐HVDC systems: Safety of the MMC along with frequency stability

Design of DC‐side fault current limiter for MMC‐HVDC systems: Safety of the MMC along with frequency stability

Review on topology‐based dc short‐circuit fault ride‐through strategies for MMC‐based HVDC system

SF6passive resonance DC circuit breaker combined with a superconducting fault current limiter

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Product

Resources

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SF₆passive resonance DC circuit breaker combined with a superconducting fault current limiter