Transient stability analysis in Multi-terminal VSC-HVDC grids

A. G. Endegnanew; K. Uhlen; T. M. Haileselassie; O. Anaya-Lara

doi:10.1109/PSCC.2016.7540857

Transient stability analysis in Multi-terminal VSC-HVDC grids

A. G. Endegnanew, K. Uhlen, T. M. Haileselassie, O. Anaya-Lara

Electronic And Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Chapter

8 Citations (Scopus)

187 Downloads (Pure)

Abstract

A novel approach to transient stability analysis in multi-terminal high voltage direct current (MTDC) grids is presented in this paper. A symmetrical three-phase fault in an ac grid connected to a rectifier terminal of the MTDC grid causes the power injected into the dc grid to decrease, which in turn leads to a lower dc voltage in the MTDC grid. If dc voltage drops below a critical voltage limit before the ac fault is cleared, then the dc grid becomes unstable and its operation is disrupted. An analytical approach is proposed in this paper to calculate the critical clearing time of a fault in an ac grid behind a rectifier terminal beyond which dc voltage collapse occurs. A five-terminal MTDC grid modeled in EMTDC/PSCAD is used to validate the results obtained with the analytical method.

Original language	English
Title of host publication	2016 Power Systems Computation Conference (PSCC)
Place of Publication	Piscataway, N.J.
Publisher	IEEE
ISBN (Print)	978-88-941051-2-4
DOIs	https://doi.org/10.1109/PSCC.2016.7540857
Publication status	Published - 11 Aug 2016
Event	19th Power Systems Computation Conference - Porto Antico Conference Centre, Genoa, Italy Duration: 20 Jun 2016 → 24 Jun 2016 http://www.pscc2016.net/

Conference

Conference	19th Power Systems Computation Conference
Abbreviated title	PSCC 2016
Country/Territory	Italy
City	Genoa
Period	20/06/16 → 24/06/16
Internet address	http://www.pscc2016.net/

Keywords

rectifiers
power system stability
voltage control
transient analysis
load flow

Access to Document

10.1109/PSCC.2016.7540857

Endegnanew-etal-PSCC-2016-Transient-stability-analysis-in-multi-terminal-VSCAccepted author manuscript, 521 KB

Cite this

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title = "Transient stability analysis in Multi-terminal VSC-HVDC grids",

abstract = "A novel approach to transient stability analysis in multi-terminal high voltage direct current (MTDC) grids is presented in this paper. A symmetrical three-phase fault in an ac grid connected to a rectifier terminal of the MTDC grid causes the power injected into the dc grid to decrease, which in turn leads to a lower dc voltage in the MTDC grid. If dc voltage drops below a critical voltage limit before the ac fault is cleared, then the dc grid becomes unstable and its operation is disrupted. An analytical approach is proposed in this paper to calculate the critical clearing time of a fault in an ac grid behind a rectifier terminal beyond which dc voltage collapse occurs. A five-terminal MTDC grid modeled in EMTDC/PSCAD is used to validate the results obtained with the analytical method.",

keywords = "rectifiers, power system stability, voltage control, transient analysis, load flow",

author = "Endegnanew, {A. G.} and K. Uhlen and Haileselassie, {T. M.} and O. Anaya-Lara",

year = "2016",

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T1 - Transient stability analysis in Multi-terminal VSC-HVDC grids

AU - Endegnanew, A. G.

AU - Uhlen, K.

AU - Haileselassie, T. M.

AU - Anaya-Lara, O.

PY - 2016/8/11

Y1 - 2016/8/11

N2 - A novel approach to transient stability analysis in multi-terminal high voltage direct current (MTDC) grids is presented in this paper. A symmetrical three-phase fault in an ac grid connected to a rectifier terminal of the MTDC grid causes the power injected into the dc grid to decrease, which in turn leads to a lower dc voltage in the MTDC grid. If dc voltage drops below a critical voltage limit before the ac fault is cleared, then the dc grid becomes unstable and its operation is disrupted. An analytical approach is proposed in this paper to calculate the critical clearing time of a fault in an ac grid behind a rectifier terminal beyond which dc voltage collapse occurs. A five-terminal MTDC grid modeled in EMTDC/PSCAD is used to validate the results obtained with the analytical method.

AB - A novel approach to transient stability analysis in multi-terminal high voltage direct current (MTDC) grids is presented in this paper. A symmetrical three-phase fault in an ac grid connected to a rectifier terminal of the MTDC grid causes the power injected into the dc grid to decrease, which in turn leads to a lower dc voltage in the MTDC grid. If dc voltage drops below a critical voltage limit before the ac fault is cleared, then the dc grid becomes unstable and its operation is disrupted. An analytical approach is proposed in this paper to calculate the critical clearing time of a fault in an ac grid behind a rectifier terminal beyond which dc voltage collapse occurs. A five-terminal MTDC grid modeled in EMTDC/PSCAD is used to validate the results obtained with the analytical method.

KW - rectifiers

KW - power system stability

KW - voltage control

KW - transient analysis

KW - load flow

UR - http://www.pscc2016.net/

U2 - 10.1109/PSCC.2016.7540857

DO - 10.1109/PSCC.2016.7540857

M3 - Chapter

SN - 978-88-941051-2-4

BT - 2016 Power Systems Computation Conference (PSCC)

PB - IEEE

CY - Piscataway, N.J.

T2 - 19th Power Systems Computation Conference

Y2 - 20 June 2016 through 24 June 2016

ER -

Transient stability analysis in Multi-terminal VSC-HVDC grids

Abstract

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Keywords

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