HVDC transmission technology for sustainable power supply

Dorn, J.; Gambach, H.; Retzmann, D.

doi:10.1109/ssd.2012.6198109

Cited by 19 publications

(14 citation statements)

References 1 publication

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“…The family/last name ‘modular multilevel cascade converter’ merges together the two terms ‘cascaded multilevel converter’ and ‘modular multilevel converter’. On the other hand, the following given/first names are assigned to the six family members : Figure (a): single‐star bridge‐cell (SSBC) or a ‘cascaded multilevel converter with star connection’ in ; Figure (b): double‐star bridge‐cell (DSBC) or an ‘MMC with full‐bridge submodules’ in ; Figure (c): triple‐star bridge‐cell (TSBC) or a ‘modular multilevel matrix converter’ in ; Figure (a): single‐delta bridge‐cell (SDBC) or a ‘cascaded multilevel converter with delta connection’ in ; Figure (b): double‐delta bridge‐cell (DDBC) or a ‘hexagonal converter’ in ; Figure : DSCC or an ‘MMC with half‐bridge submodules’ in . …”

Section: Modular Multilevel Cascade Convertersmentioning

confidence: 99%

A review of developments in the family of modular multilevel cascade converters

Akagi

2018

IEEJ Transactions Elec Engng

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This paper starts with a historical review of the family of modular multilevel cascade converters, and the topology and terminology of the family. Then, it answers the following question: 'What motivated the author to apply phase-shifted-carrier pulse-width modulation (PSC PWM) to the family?' The success in academic research on this application owes to integrating inter-cluster balancing or inter-arm balancing control into the middle layer of a hierarchical control system consisting of three layers. This integration makes it easy to expand the PSC PWM to any bridge-cell or chopper-cell count per cluster or arm. Finally, this paper ends with future scenarios of a few promising family members and their practical applications, from the personal experience and view of the author.

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Section: Modular Multilevel Cascade Convertersmentioning

confidence: 99%

A review of developments in the family of modular multilevel cascade converters

Akagi

2018

IEEJ Transactions Elec Engng

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“…This relativity high switching frequency leads to high power losses, which plays a dominate role in converter losses for the conventional two-level and three-level VSCs. The switching frequency for MMCs normally lies between 100 and 200 Hz [22], which is as low as a tenth of that for a conventional two-level VSC. This reduces converter losses for a MMC significantly when compared with a conventional two-level VSC.…”

Section: Switching Lossesmentioning

confidence: 99%

“…The power rating for each line is determined by (25) and (22). The admittance of each DC cable can be calculated using (23) and (26).…”

Section: Case Studymentioning

confidence: 99%

Power flow and transmission loss analysis of modular multi‐level converter based multi‐terminal high‐voltage DC systems

Zhang¹,

Ravishankar²,

Fletcher³

2016

IET Renewable Power Generation

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Interconnected voltage-source converter based multi-terminal high-voltage DC (HVDC) systems provide better system redundancy, higher flexibility and capability of exchanging power between multiple areas. Recent developments in modular multi-level converter technology makes multi-terminal HVDC (MTDC) transmission more promising than before. This study provides an in-depth analysis of the power flow and transmission loss for MTDC systems with different grid topologies. A voltage-power droop control based algorithm is applied to solve the power flow problems. The main contribution of this study is the novel way of determining and calculating the transmission line losses for different MTDC network topology configurations. Three MTDC system topologies are investigated. Simulated case studies are used to observe the system power flow and transmission losses for all three topologies.

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“…Transmission of electrical energy using submarine cables is limited short distances in the case of HVAC due to the high dielectric capacity of the cables, and therefore, compensating shunt reactances are necessary to limit the effective transmission distance. Direct interconnection of asynchronous AC networks is not possible via HVAC links [1][2][3] These restrictions necessitated the search for alternative solutions, which, together with the technological developments and advances in power electronics have made it possible to advance in the transmission of electric power. As a result, HVDC transmission systems emerged.…”

Section: Introductionmentioning

confidence: 99%

Master-Slave Approach for a Multi-terminal VSC-HVDC Systems Connected Offshore Wind Farm

et al. 2021

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The world is facing today the global challenge of energy transition since countries need more and more energy to grow their economy on a planet where resources are limited and poorly distributed. The integration of renewable energies and especially offshore wind energy into high voltage direct current (VSC-HVDC) transmission systems demonstrates great flexibility and reliability. In this paper, a control strategy for a multi-terminal VSC-HVDC system based on Master-Slave approach is proposed to automatically share the real power variation and stabilize the DC bus voltage in presence of abnormal operating conditions.

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HVDC transmission technology for sustainable power supply

Cited by 19 publications

References 1 publication

A review of developments in the family of modular multilevel cascade converters

A review of developments in the family of modular multilevel cascade converters

Power flow and transmission loss analysis of modular multi‐level converter based multi‐terminal high‐voltage DC systems

Master-Slave Approach for a Multi-terminal VSC-HVDC Systems Connected Offshore Wind Farm

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