Active distribution power system with multi‐terminal DC links. Issue 1 (21st November 2016)

• Record Type: Journal Article
• Authors: Chen, Dong; Xu, Lie; Zhang, Wendian
• Is Part Of: IET renewable power generation. Volume 11:Issue 1(2017)
• Page Start: 27
• Page End: 34
• Publication Date: 2016-11-21
• Subjects: power distribution -- power system stability -- distributed control -- power convertors -- frequency‐domain analysis -- time‐domain analysis; active distribution power system -- multiterminal DC links -- fast power restoration operational scheme -- relevant stabilising control -- multiterminal DC network -- nine‐feeder benchmark distribution power system -- four‐terminal medium power DC system -- distributed control -- relay system -- load switches -- voltage source converters -- autonomous operation -- DC stabiliser -- virtual impedance -- constant power load terminals -- frequency domain state‐space model -- time‐domain case study -- Matlab‐Simulink; Renewable energy sources -- Periodicals; 333.79405
• DOI: 10.1049/iet-rpg.2016.0154
• Languages: English
• ISSNs: 1752-1416

Abstract

Abstract : A fast power restoration operational scheme and relevant stabilising control is proposed for active distribution power systems with multi‐terminal DC network in replacement of the conventional normal open switches. A nine‐feeder benchmark distribution power system is established with a four‐terminal medium power DC system injected. The proposed power restoration scheme is based on the coordination among distributed control among relays, load switches, voltage source converters and autonomous operation of multi‐terminal DC system. A DC stabiliser is proposed with virtual impedance method to damp out potential oscillation caused by constant power load terminals. The proposed system and controls are validated by frequency domain state‐space model and time‐domain case study with Matlab/Simulink.