Technical and Economic Aspects of Tripole HVDC

Barthold, L. O.

doi:10.1109/icpst.2006.321422

Cited by 24 publications

(16 citation statements)

References 4 publications

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“…[32] proposes a tripole arrangement with three conductors and one metallic return which provides for high utilization of the thermal conductors. For example [33], assume the continuous rating of an 800 kv HVDC terminal is 3600 MW, and the overload rating is 4500 MW for 22 min.…”

Section: Hvdc Optionsmentioning

confidence: 99%

A survey of transmission technologies for planning long distance bulk transmission overlay in US

McCalley

Krishnan

2014

International Journal of Electrical Power & Energy Systems

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Section: Hvdc Optionsmentioning

confidence: 99%

A survey of transmission technologies for planning long distance bulk transmission overlay in US

McCalley

Krishnan

2014

International Journal of Electrical Power & Energy Systems

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“…Pole 1 and 2 are unidirectional but of opposite polarity. The Monopolar HVDC comprises an anti‐parallel bridge, which allows both current and voltage reversal .…”

Section: Emerging Trends and Technologiesmentioning

confidence: 99%

“…The bipole conductors would be loaded to either 1.37 or 0.37 pu of their thermal limits. The parallel monopole always carries +/− 1 pu of its thermal limit current and relieves the bipole current from time to time . Compared with a bipole, the transmission capacity is therefore increased by 137%.…”

Section: Emerging Trends and Technologiesmentioning

confidence: 99%

Power conversion systems for modern ac–dc power systems

Badrzadeh

2011

Int Trans Elec Energy Syst

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SUMMARY This paper discusses the present and future power conversion systems for high voltage direct current transmission systems. It begins with an introduction into the commercially available semiconductor switching devices and future wide bandgap devices specifically silicon carbide devices. Different High Voltage Direct Current (HVDC) system configurations including the point‐to‐point, back‐to‐back, multi‐terminal, and hybrid ac and dc are discussed. Different configurations of the current source and voltage source converters are presented, and the concept of redundancy and availability for the current source and voltage source schemes is elaborated on. The most significant trends in dc power systems including the transformerless HVDC, ultra high voltage dc transmission, ac to dc replacement, tripole HVDC, dc grids, dc circuit breakers, and dc transformers are presented. Copyright © 2011 John Wiley & Sons, Ltd.

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“…In , several line configurations were proposed for the conversion with monopole and bipole HVDC structures. If the tripole HVDC structure is adopted for converting AC lines into MTDC systems, the converters should act coordinately and synchronously in the transition process, due to the periodical reversal of DC voltages and DC currents on the third pole , which demands accurate and fast communication. So compared with the monopole and bipole structure, the tripole HVDC structure is more complex for converting AC lines into MTDC systems with many terminals, and its extensibility is limited, although its transmission capacity is larger than that of the monopole or bipole HVDC structure .…”

Section: Introductionmentioning

confidence: 99%

Modeling and control of extended multiterminal high voltage direct current systems with three-wire bipole structure

2014

Int. Trans. Electr. Energ. Syst.

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Summary In order to improve the transmission capability of power grids and mitigate the congestion of power flow, an idea on converting existing alternating current lines to an extended multiterminal high voltage direct current (MTDC) system is presented in this paper, and a three‐wire bipole structure (TWBS) suitable for MTDC systems is proposed. The topology of an extended MTDC system with the TWBS is described, and the operating principle of the TWBS and its transmission capability expansion mechanism are explained. The operating characteristic of the TWBS and its key equipment, the current regulation controller, are elaborated. The further application of the TWBS in DC grids is also proposed and analyzed in this paper. A test extended three‐terminal high voltage direct current system based on the TWBS is simulated with PSCAD/EMTDC. The simulation results verify the feasibility of the application of the TWBS in MTDC systems and demonstrate the effectiveness of the corresponding control strategies as well as the validity of the current regulation controller, with the full bridge modular multilevel converter. Copyright © 2014 John Wiley & Sons, Ltd.

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Technical and Economic Aspects of Tripole HVDC

Cited by 24 publications

References 4 publications

A survey of transmission technologies for planning long distance bulk transmission overlay in US

A survey of transmission technologies for planning long distance bulk transmission overlay in US

Power conversion systems for modern ac–dc power systems

Modeling and control of extended multiterminal high voltage direct current systems with three-wire bipole structure

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