Enhanced multi-terminal HVDC grid management for reliable AC network integration

Ewen Macpherson; Faheem Akhter; Gareth Harrison

doi:10.1049/cp.2014.0499

Enhanced multi-terminal HVDC grid management for reliable AC network integration

Ewen Macpherson, Faheem Akhter, Gareth Harrison

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

Abstract / Description of output

This paper presents a secondary control for MTDC systems to update the DC voltage and converter power references of the VSC stations operating under droop control, in order to eliminate the large power deviation from their desired reference power. The rated values of the VSC station used as reference does not take into account the power losses in the converter, DC line and the voltage drops in the DC transmission lines. This creates a constant difference between rated DC voltage reference and actual DC voltage value of the VSC station. This difference is multiplied by the droop gain of the VSC station, hence causing power deviations in the MTDC grid system. In this paper a secondary control is implemented for a four-terminal HVDC system modelled in EMTDC/PSCAD, to demonstrate the reduction in power deviation by the proposed secondary control.

Original language	English
Title of host publication	7th IET International Conference on Power Electronics, Machines and Drives
Place of Publication	Manchester
Publisher	IET
Number of pages	5
ISBN (Electronic)	978-1-84919-814-1
DOIs	https://doi.org/10.1049/cp.2014.0499
Publication status	Published - 2014

Keywords / Materials (for Non-textual outputs)

Multi-Terminal High Voltage Direct Current (MTDC) grid
Voltage Source Converter (VSC)
power flow control
droop control
secondary control

Access to Document

10.1049/cp.2014.0499

PEMD-postprint Final
This paper is a postprint of a paper submitted to and accepted for publication in 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014) and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library
Accepted author manuscript, 378 KB

http://digital-library.theiet.org/content/conferences/10.1049/cp.2014.0499

Cite this

@inproceedings{9d1becbce5374f25a7c7b4bcfa185b65,

title = "Enhanced multi-terminal HVDC grid management for reliable AC network integration",

abstract = "This paper presents a secondary control for MTDC systems to update the DC voltage and converter power references of the VSC stations operating under droop control, in order to eliminate the large power deviation from their desired reference power. The rated values of the VSC station used as reference does not take into account the power losses in the converter, DC line and the voltage drops in the DC transmission lines. This creates a constant difference between rated DC voltage reference and actual DC voltage value of the VSC station. This difference is multiplied by the droop gain of the VSC station, hence causing power deviations in the MTDC grid system. In this paper a secondary control is implemented for a four-terminal HVDC system modelled in EMTDC/PSCAD, to demonstrate the reduction in power deviation by the proposed secondary control.",

keywords = "Multi-Terminal High Voltage Direct Current (MTDC) grid, Voltage Source Converter (VSC), power flow control, droop control, secondary control",

author = "Ewen Macpherson and Faheem Akhter and Gareth Harrison",

year = "2014",

doi = "10.1049/cp.2014.0499",

language = "English",

booktitle = "7th IET International Conference on Power Electronics, Machines and Drives",

publisher = "IET",

}

TY - GEN

T1 - Enhanced multi-terminal HVDC grid management for reliable AC network integration

AU - Macpherson, Ewen

AU - Akhter, Faheem

AU - Harrison, Gareth

PY - 2014

Y1 - 2014

N2 - This paper presents a secondary control for MTDC systems to update the DC voltage and converter power references of the VSC stations operating under droop control, in order to eliminate the large power deviation from their desired reference power. The rated values of the VSC station used as reference does not take into account the power losses in the converter, DC line and the voltage drops in the DC transmission lines. This creates a constant difference between rated DC voltage reference and actual DC voltage value of the VSC station. This difference is multiplied by the droop gain of the VSC station, hence causing power deviations in the MTDC grid system. In this paper a secondary control is implemented for a four-terminal HVDC system modelled in EMTDC/PSCAD, to demonstrate the reduction in power deviation by the proposed secondary control.

AB - This paper presents a secondary control for MTDC systems to update the DC voltage and converter power references of the VSC stations operating under droop control, in order to eliminate the large power deviation from their desired reference power. The rated values of the VSC station used as reference does not take into account the power losses in the converter, DC line and the voltage drops in the DC transmission lines. This creates a constant difference between rated DC voltage reference and actual DC voltage value of the VSC station. This difference is multiplied by the droop gain of the VSC station, hence causing power deviations in the MTDC grid system. In this paper a secondary control is implemented for a four-terminal HVDC system modelled in EMTDC/PSCAD, to demonstrate the reduction in power deviation by the proposed secondary control.

KW - Multi-Terminal High Voltage Direct Current (MTDC) grid

KW - Voltage Source Converter (VSC)

KW - power flow control

KW - droop control

KW - secondary control

U2 - 10.1049/cp.2014.0499

DO - 10.1049/cp.2014.0499

M3 - Conference contribution

BT - 7th IET International Conference on Power Electronics, Machines and Drives

PB - IET

CY - Manchester

ER -

Enhanced multi-terminal HVDC grid management for reliable AC network integration

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

Access to Document

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Cite this