Investigation of Fault Ride-Through Capability of Hybrid VSC-LCC Multi-Terminal HVDC Transmission Systems

Haleem, Naushath M.; Rajapakse, Athula D.; Gole, Aniruddha M.; Fernando, I.T.

doi:10.1109/tpwrd.2018.2868467

Cited by 105 publications

(57 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The AC circuit breakers (ACCBs) equipped at the AC terminals of the DR and FB-MMC then open for fault protection. The power transmission of the HVDC station is interrupted during DC faults, in a similar way as systems based on conventional HB-MMCs protected by ACCBs [22,23]. Such protection arrangement is much cheaper than those using fast acting DC circuit breakers but may not be preferred for multi-terminal HVDC systems due to its relatively slow action.…”

Section: Proposed Hybrid Hvdc System Based On Diode Rectifier Andmentioning

confidence: 99%

A Unidirectional Hybrid HVDC Transmission System Based on Diode Rectifier and Full-Bridge MMC

2021

IEEE J. Emerg. Sel. Topics Power Electron.

View full text Add to dashboard Cite

To reduce the cost of bulk power transmission using voltage source converter HVDC technology, a unidirectional hybrid converter is proposed, where a diode rectifier and a modular multilevel converter (MMC) based on full-bridge (FB) submodules are connected in series on DC side. The FB-MMC controls its DC voltage to regulate the transmitted power. The majority of the power transmission is via the diode rectifier considering its cost and efficiency superiority and only low power rating FB-MMC is required. A thyristor valve is equipped at the DC side of the FB-MMC to prevent potential overcharge of the FB submodules during DC faults. Compared to conventional MMCs, losses can potentially be reduced by around 20%. An active power controller is proposed to regulate the DC voltage of the FB-MMC so as to control the transmitted power. With the inverter station controlling its DC terminal voltage constant, the FB-MMC increases the output DC voltage to increase the transmitted power and, vice versa. To alleviate overvoltage of the HVDC link during AC grid faults of the inverter station, a dynamic DC voltage limiter is designed to actively reduce the DC output voltage of the FB-MMC. Simulation results confirm the proposed converter operation and control. Index Terms-active power control, diode rectifier HVDC (DR-HVDC), fault ride-through, HVDC transmission, full-bridge (FB) based modular multilevel converter (MMC).

show abstract

Section: Proposed Hybrid Hvdc System Based On Diode Rectifier Andmentioning

confidence: 99%

A Unidirectional Hybrid HVDC Transmission System Based on Diode Rectifier and Full-Bridge MMC

2021

IEEE J. Emerg. Sel. Topics Power Electron.

View full text Add to dashboard Cite

show abstract

“…Recently the application of both LCC and VSC technologies within the same HVDC system has emerged, to allow the advantages of both technologies to be exploited [121][122][123][124][125][126][127][128]. The hybrid LCC/VSC was first used in the Skaggerak HVDC system between Denmark and Norway.…”

Section: Hybrid Hvdc Systemsmentioning

confidence: 99%

An Overview of HVDC Technology

Watson

2020

Energies

View full text Add to dashboard Cite

There is a growing use of High Voltage Direct Current (HVDC) globally due to the many advantages of Direct Current (DC) transmission systems over Alternating Current (AC) transmission, including enabling transmission over long distances, higher transmission capacity and efficiency. Moreover, HVDC systems can be a great enabler in the transition to a low carbon electrical power system which is an important objective in today’s society. The objectives of the paper are to give a comprehensive overview of HVDC technology, its development, and present status, and to discuss its salient features, limitations and applications.

show abstract

“…Considering a large amount of LCC-HVDC links are already existed, reference [8] uses MMCs to tap into an existing HVDC link to form a multi-terminal hybrid HVDC. References [9][10] use MMC-HVDC to tap into the same AC bus to form a dual infeed HVDC system. Since the typical DC voltage rating of LCC-HVDC (±800kV) is higher than the MMC-HVDC system (±320kV), reference [11] proposes a hybrid converter consisted of a series connection of MMC and LCC converters to match the DC voltages, combining the advantages of high voltage rating, low loss, relatively low cost of LCC and self-commutating of MMC.…”

Section: Introductionmentioning

confidence: 99%

A Cascaded Converter Interfacing Long-Distance HVdc and Back-to-Back HVdc Systems

Xiang

Ren-gang

Chang

et al. 2020

IEEE J. Emerg. Sel. Topics Power Electron.

View full text Add to dashboard Cite

Abstract-This paper proposes a cascaded converter dedicated to long-distance HVDC infeed and asynchronous back-to-back interconnection of receiving grids. The cascaded converter is consisted of MMCs in series and parallel connection, meeting the high DC voltage and power demand of HVDC system. It realizes hierarchical feeding and asynchronous interconnection of receiving grids, optimizing the multi-infeed short circuit ratio and improving the flexibility of the receiving grids. The topology and operating characteristics of the cascaded converter are introduced in detail. The multi-infeed short-circuits ratio (MISCR) and the maximum power infeed of the cascaded converter based HVDC systems are analyzed. Various feasible operating modes with online switching strategies of the cascaded converter are studied to improve the operational flexibility of the system. The simulation results verify the effectiveness of the control strategy of the HVDC system embedding the cascaded converter. The DC faults clearing strategy and operating modes switching strategies are also validated.

show abstract

Investigation of Fault Ride-Through Capability of Hybrid VSC-LCC Multi-Terminal HVDC Transmission Systems

Cited by 105 publications

References 21 publications

A Unidirectional Hybrid HVDC Transmission System Based on Diode Rectifier and Full-Bridge MMC

A Unidirectional Hybrid HVDC Transmission System Based on Diode Rectifier and Full-Bridge MMC

An Overview of HVDC Technology

A Cascaded Converter Interfacing Long-Distance HVdc and Back-to-Back HVdc Systems

Contact Info

Product

Resources

About