Title :
Controllable damping characteristics of SMES fed by a voltage source converter and its application in a power system
Author :
Li, Yan ; Cheng, Shijie
Author_Institution :
Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
This paper aims to investigate the contribution of the SMES fed by a voltage source converter (VSMES) to the power system stability. The H∞ theory based control method is presented for the VSMES. Simulation results show the high performance of the well-controlled VSMES in enhancing the power system stability. An exclusive model based on the identification technique employing Prony analysis is formulated to study the characteristics of the damping ratio of the open loop power system and the closed loop ones. The study result indicates that with the help of the controller the VSMES has the capability of changing the damping ratio of the power system so as to improve the stability of the power system.
Keywords :
closed loop systems; open loop systems; power convertors; power system control; power system stability; superconducting magnet energy storage; SMES; VSMES controller; closed loop power system; controllable damping characteristics; damping ration; identification technique; open loop power system; power system stability; prony analysis; voltage source converter; Control systems; Damping; Open loop systems; Power system analysis computing; Power system modeling; Power system simulation; Power system stability; Power systems; Samarium; Voltage control;
Conference_Titel :
Transmission and Distribution Conference and Exposition, 2003 IEEE PES
Print_ISBN :
0-7803-8110-6
DOI :
10.1109/TDC.2003.1335356
