Title :
H∞ control of inter-area oscillations based on WAMs considering signals transmission delay
Author_Institution :
Wuhan Univ., Wuhan
Abstract :
The paper proposes an adaptive supervisory controller (ASC) to enhance the damping of inter-area oscillations using wide area measurement (WAM) and accounting for signals transmission delays. The damping controller based on the mixed-sensitivity linear matrix inequality (LMI) approach with pole-placement restriction is designed. In the controller design, the signal transmission delays are regarded as structured uncertainty with linear fractional transformation (LFT) approach. The design of the ASC is explained in detail and its performance validated for a range of operating conditions by frequency and time domain simulations on a 4-machine 2-area test system.
Keywords :
H∞ control; adaptive control; delays; frequency-domain analysis; linear matrix inequalities; time-domain analysis; Hinfin control; adaptive supervisory controller; damping controller; frequency domain simulations; interarea oscillations; linear fractional transformation approach; mixed-sensitivity linear matrix inequality; pole-placement restriction; signal transmission delays; signals transmission delay; time domain simulations; Delay effects; Frequency; Industrial electronics; Power generation; Signal generators; Voltage;
Conference_Titel :
Industrial Electronics and Applications, 2007. ICIEA 2007. 2nd IEEE Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-0736-1
Electronic_ISBN :
978-1-4244-0737-8
DOI :
10.1109/ICIEA.2007.4318646
