A two-stage power dispatching algorithm for system support by droop-controlled DC grids

Y. Li; Z. Xu; Kitpo Wong; L.L. Lai

doi:10.1109/PESGM.2015.7285759

A two-stage power dispatching algorithm for system support by droop-controlled DC grids

Y. Li, Z. Xu, Kitpo Wong, L.L. Lai

Research output: Chapter in Book/Conference paper › Conference paper › peer-review

Abstract

© 2015 IEEE. This paper presents a two-stage algorithm to regulate the power flow among a Multi-Terminal DC (MTDC) grid with DC voltage droop controllers to provide system support for the surrounding AC systems. At stage one, DC voltage of each terminal is calculated with the proposed analytical model to track the power demand of AC systems determined by the system operator. At stage two, power initial set points or DC droops of the droop controllers are modified according to the calculated DC voltage in the first stage. The proposed algorithm can accurately and quickly track the power demand from AC systems to provide system support under the system frequency disturbances. A four-terminal MTDC grid was modeled in the DIgSILENT/PowerFactory to demonstrate the effectiveness of the proposed algorithm.

Original language	English
Title of host publication	IEEE Power and Energy Society General Meeting
Publisher	Wiley-IEEE Press
Pages	1-5
Volume	2015-September
ISBN (Print)	9781467380409
DOIs	https://doi.org/10.1109/PESGM.2015.7285759
Publication status	Published - 2015
Event	2015 IEEE Power and Energy Society General Meeting - Denver, United States Duration: 26 Jul 2015 → 30 Jul 2015

Conference

Conference	2015 IEEE Power and Energy Society General Meeting
Country/Territory	United States
City	Denver
Period	26/07/15 → 30/07/15

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10.1109/PESGM.2015.7285759

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@inproceedings{855e8291d2be4431bd64bda8e30b1f8a,

title = "A two-stage power dispatching algorithm for system support by droop-controlled DC grids",

abstract = "{\textcopyright} 2015 IEEE. This paper presents a two-stage algorithm to regulate the power flow among a Multi-Terminal DC (MTDC) grid with DC voltage droop controllers to provide system support for the surrounding AC systems. At stage one, DC voltage of each terminal is calculated with the proposed analytical model to track the power demand of AC systems determined by the system operator. At stage two, power initial set points or DC droops of the droop controllers are modified according to the calculated DC voltage in the first stage. The proposed algorithm can accurately and quickly track the power demand from AC systems to provide system support under the system frequency disturbances. A four-terminal MTDC grid was modeled in the DIgSILENT/PowerFactory to demonstrate the effectiveness of the proposed algorithm.",

author = "Y. Li and Z. Xu and Kitpo Wong and L.L. Lai",

year = "2015",

doi = "10.1109/PESGM.2015.7285759",

language = "English",

isbn = "9781467380409",

volume = "2015-September",

pages = "1--5",

booktitle = "IEEE Power and Energy Society General Meeting",

publisher = "Wiley-IEEE Press",

note = "2015 IEEE Power and Energy Society General Meeting ; Conference date: 26-07-2015 Through 30-07-2015",

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TY - GEN

T1 - A two-stage power dispatching algorithm for system support by droop-controlled DC grids

AU - Li, Y.

AU - Xu, Z.

AU - Wong, Kitpo

AU - Lai, L.L.

PY - 2015

Y1 - 2015

N2 - © 2015 IEEE. This paper presents a two-stage algorithm to regulate the power flow among a Multi-Terminal DC (MTDC) grid with DC voltage droop controllers to provide system support for the surrounding AC systems. At stage one, DC voltage of each terminal is calculated with the proposed analytical model to track the power demand of AC systems determined by the system operator. At stage two, power initial set points or DC droops of the droop controllers are modified according to the calculated DC voltage in the first stage. The proposed algorithm can accurately and quickly track the power demand from AC systems to provide system support under the system frequency disturbances. A four-terminal MTDC grid was modeled in the DIgSILENT/PowerFactory to demonstrate the effectiveness of the proposed algorithm.

AB - © 2015 IEEE. This paper presents a two-stage algorithm to regulate the power flow among a Multi-Terminal DC (MTDC) grid with DC voltage droop controllers to provide system support for the surrounding AC systems. At stage one, DC voltage of each terminal is calculated with the proposed analytical model to track the power demand of AC systems determined by the system operator. At stage two, power initial set points or DC droops of the droop controllers are modified according to the calculated DC voltage in the first stage. The proposed algorithm can accurately and quickly track the power demand from AC systems to provide system support under the system frequency disturbances. A four-terminal MTDC grid was modeled in the DIgSILENT/PowerFactory to demonstrate the effectiveness of the proposed algorithm.

U2 - 10.1109/PESGM.2015.7285759

DO - 10.1109/PESGM.2015.7285759

M3 - Conference paper

SN - 9781467380409

VL - 2015-September

SP - 1

EP - 5

BT - IEEE Power and Energy Society General Meeting

PB - Wiley-IEEE Press

T2 - 2015 IEEE Power and Energy Society General Meeting

Y2 - 26 July 2015 through 30 July 2015

ER -

A two-stage power dispatching algorithm for system support by droop-controlled DC grids

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