The multi-index nonlinear control design of UPFC

Author

Xiao-cong, Li ; Qiu-wen, Li ; Le, Wang ; Xiao-feng, You

Author_Institution

Sch. of Electr., Guangxi Univ., Nanning, China

fYear

2011

fDate

6-9 July 2011

Firstpage

1035

Lastpage

1038

Abstract

This paper focuses on the dynamic of excitation, proposes a new dynamic model of Unified Power Flow Controller (UPFC) through analyzed the change of system transient potential. Base on this, we present 5 output functions of multi-index, which include the state-index as voltage, real power and reactive power etc, with the design of multi-index nonlinear. Then, solve the analytical expressions of the control laws. At last, give another control law of general nonlinear for comparison in the simulation to demonstrate its excellent results to improve the stability of power system. And the simulation results show that in the multi-index nonlinear controller, UPFC can effectively improve the dynamic quality and transient stability of power system.

Keywords

control system synthesis; load flow control; nonlinear control systems; power factor correction; power system transient stability; reactive power control; UPFC; control laws; multiindex nonlinear control design; power system dynamic quality; power system stability; power system transient stability; reactive power; real power; state-index; system transient potential; unified power flow controller; Generators; Integrated circuit modeling; Nonlinear dynamical systems; Power system dynamics; Power system stability; Stability criteria; coordination control; dynamic model of UPFC; multi-index nonlinear controller; transient stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2011 4th International Conference on

Conference_Location

Weihai, Shandong

Print_ISBN

978-1-4577-0364-5

Type

conf

DOI

10.1109/DRPT.2011.5994046

Filename

5994046