NDLI: Review of dc–dc converters for multi-terminal HVDC transmission networks

Content Provider	IET Digital Library
Author	Adam, Grain Philip Gowaid, Islam Azmy Finney, Stephen Jon Holliday, Derrick Williams, Barry W.
Abstract	This study presents a comprehensive review of high-power dc–dc converters for high-voltage direct current (HVDC) transmission systems, with emphasis on the most promising topologies from established and emerging dc–dc converters. In addition, it highlights the key challenges of dc–dc converter scalability to HVDC applications, and narrows down the desired features for high-voltage dc–dc converters, considering both device and system perspectives. Attributes and limitations of each dc–dc converter considered in this study are explained in detail and supported by time-domain simulations. It is found that the front-to-front quasi-two-level operated modular multilevel converter, transition arm modular converter and controlled transition bridge converter offer the best solutions for high-voltage dc–dc converters that do not compromise galvanic isolation and prevention of dc fault propagation within the dc network. Apart from dc fault response, the MMC dc auto transformer and the transformerless hybrid cascaded two-level converter offer the most efficient solutions for tapping and dc voltage matching of multi-terminal HVDC networks.
Starting Page	281
Ending Page	296
Page Count	16
ISSN	17554535
Volume Number	9
e-ISSN	17554543
Issue Number	Issue 2, Feb (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/9/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2015.0530
Journal	IET Power Electronics
Publisher Date	2016-02-10
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Autotransformers Bridge Circuit Controlled Transition Bridge Converter D.C. Transmission DC Fault Propagation DC Voltage Matching DC-DC Converter DC-DC Power Converter Front-to-front Quasitwo-level Operation Galvanic Isolation High-voltage Direct Current Transmission System HVDC Power Converter HVDC Power Transmission Mathematical Analysis MMC DC Autotransformer Modular Multilevel 25 Converter Multiterminal HVDC Transmission Network Power Transformer Time Domain Analysis Time-domain Simulation Transformer And Reactors Transformerless Hybrid Cascaded Two-level Converter Transition Arm Modular Converter
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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Submodule configuration of HVDC-DC autotransformer considering DC fault

Optimisation of the HVDC auto transformer by using hybrid MMC modulation

Multiple modular DC transformer for flexible HVDC application

Robust and Generic Control of Full-Bridge Modular Multilevel Converter High-Voltage DC Transmission Systems

Hybrid converter topologies for dc transmission systems

Multi-tasking dc–dc and dc–ac converters for dc voltage tapping and power control in highly meshed multi-terminal HVDC networks

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

DC–DC autotransformer with un-interrupted operating capability during DC fault

Modular multilevel converter with modified half-bridge submodule and arm filter for dc transmission systems with dc fault blocking capability

Review of dc–dc converters for multi-terminal HVDC transmission networks

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