Title :
A phasor control scheme for voltage sag compensation by SMES
Author :
Liu, Xun ; Zhu, Xiaoguang ; Jiang, Xiaohua
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
A novel phasor control scheme is developed for a SMES system to protect a critical load from momentary voltage sags. This system consists of a 0.3 MJ superconducting magnet, a 200 kVA IGBT-based current source converter and a 2.5 mH reactor inserted between power supply and load. To obtain a rapid response, the current vector PWM strategy is applied. Simulations and experiments are carried out to demonstrate the algorithm, and the results are presented.
Keywords :
PWM power convertors; insulated gate bipolar transistors; phase control; power supply quality; superconducting magnet energy storage; superconducting magnets; 0.3 MJ; 200 kVA; SMES; critical load protection; current source converter; current vector PWM strategy; phasor control scheme; superconducting magnet; voltage sag compensation;
Conference_Titel :
Power Electronics and Motion Control Conference, 2004. IPEMC 2004. The 4th International
Conference_Location :
Xi´an
Print_ISBN :
7-5605-1869-9
