Minimization of Transmission Loss in Meshed AC/DC Grids With VSC-MTDC Networks

Author

Jun Cao ; Wenjuan Du ; Wang, H.F. ; Bu, S.Q.

Author_Institution

Sch. of Electron., Electr. Eng. & Comput. Sci., Queen´s Univ. of Belfast, Belfast, UK

Volume

28

Issue

3

fYear

2013

fDate

Aug. 2013

Firstpage

3047

Lastpage

3055

Abstract

The paper considers the optimal power flow (OPF) of a meshed AC/DC power transmission network with voltage source converter based multi-terminal DC (VSC-MTDC) networks. The OPF problem is formulated to minimize the transmission loss of the whole AC/DC network with two different VSC control strategies considered, constant DC voltage control (master-slave control) and DC voltage droop control. In addition, Grid Code compliance of wind farms is also embedded in the OPF formulation. The presented OPF is evaluated and demonstrated in the paper by two example meshed AC/DC power systems.

Keywords

AC-DC power convertors; load flow control; power generation control; power grids; power transmission control; voltage control; wind power plants; DC voltage droop control; OPF; VSC control strategies; VSC-MTDC networks; constant DC voltage control; grid code compliance; meshed AC-DC grids; meshed AC-DC power systems; meshed AC-DC power transmission network; multiterminal DC networks; optimal power flow; transmission loss minimization; voltage source converter; wind farms; AC/DC systems; multi-terminal HVDC (MTDC); optimal power flow (OPF); voltage source converter (VSC);

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/TPWRS.2013.2241086

Filename

6490070