Simulation study of the Zhoushan project as a three-terminal DC transmission system

Author

Jing Hu ; Chengyong Zhao ; Xuena Zhang ; Xiaodong Yang

Author_Institution

Inst. of State Key Lab. of Alternate Electr. Power Syst. with Renewable Energy Sources, North China Electr. Power Univ., Beijing, China

fYear

2012

fDate

22-26 July 2012

Firstpage

1

Lastpage

6

Abstract

This paper presents a simulation study of the proposed three-terminal DC transmission system in Zhoushan Archipelago located in East China Sea. In this paper, two kinds of topologies of converter are compared to select the suitable one and the DC voltage level is determined. Then, station controller based on direct current control strategy is designed. A multipoint DC voltage control strategy based on DC voltage error method is proposed to improve reliability of the system. An additional frequency control strategy is put forward to make it possible for VSC-HVDC system to take part in the frequency control. Finally, the three-terminal DC transmission system model is developed in PSCAD/EMTDC. In Results from the simulation study show that the three-terminal DC Transmission system based on modular multilevel converter (MMC) is technically feasible for Zhoushan project.

Keywords

HVDC power convertors; HVDC power transmission; electric current control; frequency control; power transmission control; power transmission reliability; voltage control; DC voltage error method; DC voltage level; East China Sea; MMC; PSCAD-EMTDC; VSC-HVDC system; Zhoushan Archipelago; Zhoushan project; converter topology; direct current control strategy; frequency control strategy; multipoint DC voltage control strategy; station controller; system reliability improvement; three-terminal DC transmission system; Frequency control; HVDC transmission; Load modeling; Power conversion; Topology; Voltage control; Modular Multilevel Converter (MMC); additional frequency control; control strategy; multi-point DC voltage control; three-terminal DC transmission system;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting, 2012 IEEE

Conference_Location

San Diego, CA

ISSN

1944-9925

Print_ISBN

978-1-4673-2727-5

Electronic_ISBN

1944-9925

Type

conf

DOI

10.1109/PESGM.2012.6345097

Filename

6345097