The Application of Active Superconducting DC Fault Current Limiter in Hybrid AC/DC Power Supply Systems

Author

Shi, Jing ; Tang, Yuejin ; Chen, Lei ; Wang, Jin ; Ren, Li ; Li, Jingdong ; Li, Liang ; Peng, Tao ; Cheng, Shijie

Author_Institution

R&D Center of Appl. Supercond., Huazhong Univ. of Sci. & Technol., Wuhan

Volume

18

Issue

2

fYear

2008

fDate

6/1/2008 12:00:00 AM

Firstpage

672

Lastpage

675

Abstract

This paper presents a new topology of the active superconducting DC fault current limiter (DC-SFCL) applied in the hybrid AC/DC power supply systems. The proposed DC-SFCL is composed of superconducting transformer, DC chopper and voltage source converter (VSC). The primary winding of the transformer is connected in series with DC transmission line, and the second winding is connected with AC power system through the VSC and the DC chopper. The active DC-SFCL can suppress the fault current of DC system through power exchange between the DC and the AC system. Moreover, the DC-SFCL can act as an active power filter for both the DC system and the AC system to solve the problem of power quality. Using MATLAB SIMULINK, the simulation model of the hybrid AC/DC power supply systems with the proposed DC-SFCL is created. Simulation results validate the dynamics of system, and the performance of the active DC-SFCL is confirmed.

Keywords

choppers (circuits); fault current limiters; hybrid power systems; power system protection; superconducting transformers; transformer windings; AC power system; DC chopper; DC transmission line; MATLAB; SIMULINK; active power filter; active superconducting DC fault current limiter; hybrid AC/DC power supply systems; power quality; superconducting transformer; voltage source converter; Active power filter; hybrid AC/DC power supply system; power exchange; superconducting DC fault current limiter;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2008.921888

Filename

4493390