Title :
Power system transient stability enhancement by STATCOM with nonlinear control system
Author :
Kondo, Taro ; Yokoyama, Akihiko ; Goto, Masuo ; Konishi, Hiroo ; Sekoguchi, Masahiro ; Lu, Qiang
Author_Institution :
Dept of Electr. Eng, Univ. of Tokyo, Japan
Abstract :
A nonlinear control approach is applied to static synchronous compensator (STATCOM), which is one of the FACTS devices. Here, the nonlinear controller is designed locally based on mathematical models of one of the generators, STATCOM and transmission lines in a multi-machine system. The influence of the proposed controller, which controls the terminal voltage of STATCOM, on the power system stability is tested by digital dynamic simulations. As a result of the simulation, it has been made clear that the STATCOM can improve the transient stability in the 3-machine loop system. In the case of the IEEJ West 10-machine system, the effectiveness is also discussed.
Keywords :
control system synthesis; flexible AC transmission systems; nonlinear control systems; power system control; power system transient stability; static VAr compensators; voltage control; 3-machine loop system; FACTS; IEEJ West 10-machine system; STATCOM; damping improvement; digital dynamic simulations; mathematical models; multi-machine system; nonlinear control system; nonlinear controller design; power system transient stability enhancement; static synchronous compensator; terminal voltage control; transmission lines; Automatic voltage control; Mathematical model; Nonlinear control systems; Nonlinear dynamical systems; Power system simulation; Power system stability; Power system transients; Power transmission lines; System testing; Voltage control;
Conference_Titel :
Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on
Print_ISBN :
0-7803-7459-2
DOI :
10.1109/ICPST.2002.1067865
