Coupling between the frequency droop and the voltage droop of an AC/DC converter in an MTDC system

Author

Akkari, S. ; Dai, J. ; Petit, M. ; Guillaud, X.

Author_Institution

Group of Electr. Eng. Paris (GeePs), UPSud, Gif-sur-Yvette, France

fYear

2015

fDate

June 29 2015-July 2 2015

Firstpage

1

Lastpage

6

Abstract

MTDC systems are required to be reliable, and in certain cases, should participate in the AC grids frequency regulation. This can be achieved by providing AC/DC converters with a dual controller combining both the voltage-droop and the frequency-droop control techniques. In this paper, the coupling between the two droops is theoretically investigated and quantified for both a DC side fault and an AC side fault. A 5-terminal HVDC grid is simulated to validate the theoretical results.

Keywords

AC-DC power convertors; HVDC power convertors; couplings; frequency control; power generation control; power generation faults; power generation reliability; power grids; voltage control; 5-terminal HVDC grid; AC grid frequency regulation; AC side fault; AC-DC converter frequency droop coupling; AC-DC converter voltage droop coupling; DC side fault; MTDC system reliability; frequency droop control technique; voltage droop control technique; Frequency control; Frequency conversion; HVDC transmission; Power conversion; Time-frequency analysis; Voltage control; HVDC; MTDC; frequency control; voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

PowerTech, 2015 IEEE Eindhoven

Conference_Location

Eindhoven

Type

conf

DOI

10.1109/PTC.2015.7232285

Filename

7232285