Closed-loop control system based on wide area measurement system

Author

Huaiyuan Wang ; Baohui Zhang ; Songhao Yang ; Dezhi Chen ; Yunting Song ; Shiying Ma

Author_Institution

State Key Lab. of Electr. Insulation & Power Equip., Xi´an Jiaotong Univ., Xi´an, China

fYear

2015

fDate

23-25 May 2015

Firstpage

6255

Lastpage

6259

Abstract

Based on the trajectory information of the power system, this paper analyzes transient stability prediction and new generation transient stability control for large power system. This method, which is independent of system parameter and model, can tell the transient stability of the power system quickly and give the control strategy. At first, system instability is detected by the characteristics concave or convex of the critical machine trajectory of the post-fault system. Then, the multi-variables self-memory numerical predictive formula is derived to accelerate the speed of recognizing the transient stability of the power system. What´s more, the control strategy by the closed-loop control system is given based on transient kinetic energy when the power system is unstable.

Keywords

closed loop systems; power system control; power system measurement; power system stability; closed-loop control system; critical machine trajectory; multivariable self-memory numerical predictive formula; new generation transient stability control; power system; system instability; trajectory information; transient kinetic energy; transient stability prediction; wide area measurement system; Generators; Indexes; Power system stability; Stability analysis; Trajectory; Transient analysis; Electric power system; Transient instability prediction; characteristic concave or convex of surface; transient stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Decision Conference (CCDC), 2015 27th Chinese

Conference_Location

Qingdao

Print_ISBN

978-1-4799-7016-2

Type

conf

DOI

10.1109/CCDC.2015.7161938

Filename

7161938