NDLI: Three-wire bipolar high-voltage direct current line using an existing single-circuit high-voltage alternating current line for integrating renewable energy sources in multiterminal DC networks

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Three-wire bipolar high-voltage direct current line using an existing single-circuit high-voltage alternating current line for integrating renewable energy sources in multiterminal DC networks

Volume 10 (2016) : Issue 2, Feb

Volume 10 (2016) : Issue 1, Jan

IET Science, Measurement & Technology

IET Signal Processing

IET Wireless Sensor Systems

Micro & Nano Letters

The Journal of Engineering

Three-wire bipolar high-voltage direct current line using an existing single-circuit high-voltage alternating current line for integrating renewable energy sources in multiterminal DC networks

Content Provider	IET Digital Library
Author	Elserougi, Ahmed A. Massoud, Ahmed Mohamed Khalik, Ayman Samy Abdel Ahmed, Shehab
Abstract	When compared with conventional point-to-point high-voltage direct current (HVDC) systems, multiterminal HVDC (MTDC) systems are more economical and flexible. MTDC systems can tie distributed high power renewable energy sources (such as offshore wind energy and high-power photovoltaic systems) into AC grid(s). To save in the required infrastructure for DC line installations, existing high-voltage alternating current (HVAC) lines can be converted into DC links. The bipole HVDC concept can be used easily for converting the HVAC lines into DC links, but with a limited transmission capacity. Alternatively, three-wire bipole structure (TWBS) can be used, yet it requires a power electronics-based converter connected in series with one of the wires (modulating wire), which affects the system reliability and adds more complexity. In this study, a new configuration is proposed for converting the HVAC lines into DC links with enhanced power capability compared with the two-wire bipole HVDC system. The proposed approach provides a lower power enhancement compared with that provided by TWBS. However, a higher reliability can be guaranteed as it avoids the series-connected converters. Analytical and simulation studies using Matlab/Simulink platform have been presented in this study to validate the proposed concept.
Starting Page	370
Ending Page	379
Page Count	10
ISSN	17521416
Volume Number	10
e-ISSN	17521424
Issue Number	Issue 3, Mar (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/10/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2015.0124
Journal	IET Renewable Power Generation
Publisher Date	2016-03-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC Grid D.C. Transmission DC Link HVAC Line HVDC Power Converter HVDC Power Transmission Integrating Renewable Energy Source MTDC System Multiterminal DC Network Multiterminal HVDC System Reliability Multiterminal Network Power Capability Enhancement Power Electronics-based Converter Power Grid Power Transmission Line Power Transmission Reliability Reliability Renewable Energy Source Single-circuit High Voltage Alternating Current Line Three-wire Bipolar High Voltage Direct Current Line TWBS
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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