Title :
ASVG model for transient stability studies in unbalanced systems
Author :
Xiaolu, Li ; Xianzhong, Duan ; Yangzan, He ; Xianggen, Yin ; Hong, Zhou ; Jisheng, Li ; Feng, Wang ; Xu, Ling
Author_Institution :
Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
An advanced static VAr generator (ASVG) can be beneficial to power systems in many ways. In order to evaluate its dynamic performance, the device should be modeled appropriately in transient studies. This paper describes the dynamic behavior of ASVG in balanced systems and unbalanced systems. When bus voltage becomes unbalanced due to asymmetrical power systems failure or symmetrical operation, the negative sequence voltage component will cause negative sequence and 3-order harmonic voltage on the AC side of the ASVG. A model is presented for the transient stability studies in unbalanced systems
Keywords :
power system harmonics; power system stability; power system transients; static VAr compensators; 3-order harmonic voltage; ASVG model; FACTS; advanced static VAr generator; asymmetrical power systems failure; bus voltage; dynamic performance; negative sequence voltage component; power systems; symmetrical operation; transient stability studies; unbalanced systems; Analog-digital conversion; Converters; Power conversion; Power system dynamics; Power system harmonics; Power system modeling; Power system stability; Power system transients; Reactive power; Voltage control;
Conference_Titel :
Energy Management and Power Delivery, 1998. Proceedings of EMPD '98. 1998 International Conference on
Print_ISBN :
0-7803-4495-2
DOI :
10.1109/EMPD.1998.705499
