Grid-connection of active-forced-commutated bridge: Power quality and DC fault protection

Peng Li, Stephen J. Finney, Derrick Holliday

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The active-forced-commutated (AFC) bridge for high-voltage (HV) DC transmission has recently been proposed, which operates low-loss thyristor valves in the manner of a voltage source converter (VSC) with the assistance of a self-commutated full-bridge (FB) chain-link (CL) circuit, creating a hybrid VSC solution which retains the key advantage of high-efficiency performance found in conventional line-commutated-converters (LCC). The AFC-bridge enables fully controlled turn-on/off and four-quadrant operation for a symmetrical thyristor bridge to synthesize independent AC voltage based on a given DC-link voltage. From a system-level perspective, it inherits the key functionalities of a standard VSC, including bidirectional current flow and independent active/reactive power control, in combination with a number of favorable features common to LCC-HVDC implementations, including the enhanced voltage scalability, reduced complexity, DC-fault blocking capability and bipolar DC voltage operability. However, the slow commutation speed of high-capacity thyristors results in power quality issues due to low frequency harmonics, which need a certain level of passive filtering to ensure grid code compliance. Continuing previous work, this paper addresses several AFC-bridge grid-connection issues, including minimization of the AFC-bridge total passive filter capacity by adopting a predefined selective harmonic elimination (SHE) mode or by using a multiplexed configuration, and simulation analysis and validation of DC-fault-proof capability.

Original languageEnglish
Title of host publicationProceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1192-1197
Number of pages6
Volume2017-January
ISBN (Electronic)9781538611272
DOIs
Publication statusPublished - 15 Dec 2017
Event43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 - Beijing, China
Duration: 29 Oct 20171 Nov 2017

Conference

Conference43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
CountryChina
CityBeijing
Period29/10/171/11/17

Fingerprint

Power Quality
Power quality
Fault
Voltage
Grid
Converter
Electric potential
Thyristors
HVDC power transmission
Harmonic
Passive filters
Electric commutation
Line
Reactive power
Quadrant
Power control
Power Control
Simulation Analysis
Scalability
Compliance

Keywords

  • active-forced-commutated (AFC) bridge
  • DC fault reverse-blocking
  • full-bridge chain-link (FB-CL)
  • high efficiency
  • selective harmonic elimination (SHE)
  • thyristor
  • total harmonic distortion (THD)
  • trapezoidal waveform

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Control and Optimization
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Li, P., Finney, S. J., & Holliday, D. (2017). Grid-connection of active-forced-commutated bridge: Power quality and DC fault protection. In Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society (Vol. 2017-January, pp. 1192-1197). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IECON.2017.8216203

Grid-connection of active-forced-commutated bridge : Power quality and DC fault protection. / Li, Peng; Finney, Stephen J.; Holliday, Derrick.

Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society. Vol. 2017-January Institute of Electrical and Electronics Engineers Inc., 2017. p. 1192-1197.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Li, P, Finney, SJ & Holliday, D 2017, Grid-connection of active-forced-commutated bridge: Power quality and DC fault protection. in Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society. vol. 2017-January, Institute of Electrical and Electronics Engineers Inc., pp. 1192-1197, 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017, Beijing, China, 29/10/17. https://doi.org/10.1109/IECON.2017.8216203
Li P, Finney SJ, Holliday D. Grid-connection of active-forced-commutated bridge: Power quality and DC fault protection. In Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society. Vol. 2017-January. Institute of Electrical and Electronics Engineers Inc. 2017. p. 1192-1197 https://doi.org/10.1109/IECON.2017.8216203
Li, Peng ; Finney, Stephen J. ; Holliday, Derrick. / Grid-connection of active-forced-commutated bridge : Power quality and DC fault protection. Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society. Vol. 2017-January Institute of Electrical and Electronics Engineers Inc., 2017. pp. 1192-1197
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