DocumentCode :
2815133
Title :
Simulation and analysis of voltage sag mitigation using active series voltage injection
Author :
Xiao Xiangning ; Yonghai, Xu ; Lianguang, Liu
Author_Institution :
North China Electr. Power Univ., Beijing, China
Volume :
3
fYear :
2000
fDate :
2000
Firstpage :
1317
Abstract :
The analyses of voltage sag and its mitigation techniques have received a lot of attention in recent years. Through the fictitious three-phase voltages and the voltage conversion, a new method that can be used to instantaneously quantify the magnitude, duration and phase-angle jump of voltage sag is described in this paper. Considering the actual power quality disturbances, a low pass filter is used to obtain the RMS value of the voltage. The deficiencies of the classical RMS computations for classifying voltage sags are overcome with the proposed method. The method is efficient for the evaluation of voltage sags and the injection for correcting voltage sags in real time on series compensation devices. Taking into account the actual disturbances and the injection capability, the control strategy used in series device is given. Finally, simulation results ate presented to demonstrate the validity of the proposed method
Keywords :
control system analysis; control system synthesis; power supply quality; power system control; power system faults; power system stability; voltage control; active series voltage injection; control design; control simulation; power quality disturbances; power system voltage sag mitigation; series compensation devices; three-phase voltages; voltage conversion; Analytical models; Circuit faults; Circuit simulation; Low pass filters; Power quality; Power system faults; Power system protection; Power system simulation; Trees - insulation; Voltage fluctuations;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power System Technology, 2000. Proceedings. PowerCon 2000. International Conference on
Conference_Location :
Perth, WA
Print_ISBN :
0-7803-6338-8
Type :
conf
DOI :
10.1109/ICPST.2000.898160
Filename :
898160
Link To Document :
بازگشت