TY - GEN
T1 - Design of Delayed-Input Wide Area Power System Stabilizer Using the Gain Scheduling Method
AU - Wu, Hongxia
AU - Heydt, Gerald Thomas
PY - 2003
Y1 - 2003
N2 - Centralized wide area control design using system-wide data has been suggested to enhance large interconnected power systems dynamic performance. Because of the nature of wide area interconnections, communication delay cannot be ignored in wide area control. A long time delay may be a detriment to system stability and degrade system robustness. The general Linear Fractional Transformation (LFT) method to describe the time delay uncertainty can lead to a conservative design. In this paper, a Gain Scheduling (GS) method based on Linear Matrix Inequality (LMI) is proposed to design a dynamic controller to accommodate time delays in supervisory Power System Stabilizer (PSS) design. The new approach achieves better performance than the general LFT method, and the order of the controller remains the same with that of the system plant.
AB - Centralized wide area control design using system-wide data has been suggested to enhance large interconnected power systems dynamic performance. Because of the nature of wide area interconnections, communication delay cannot be ignored in wide area control. A long time delay may be a detriment to system stability and degrade system robustness. The general Linear Fractional Transformation (LFT) method to describe the time delay uncertainty can lead to a conservative design. In this paper, a Gain Scheduling (GS) method based on Linear Matrix Inequality (LMI) is proposed to design a dynamic controller to accommodate time delays in supervisory Power System Stabilizer (PSS) design. The new approach achieves better performance than the general LFT method, and the order of the controller remains the same with that of the system plant.
KW - Gain Scheduling
KW - Linear Fractional Transformation
KW - Linear Matrix Inequality
KW - Power System Stabilizer
KW - Robust Control
KW - Time Delay
KW - Wide Area
UR - http://www.scopus.com/inward/record.url?scp=1542359475&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=1542359475&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:1542359475
SN - 0780379896
T3 - 2003 IEEE Power Engineering Society General Meeting, Conference Proceedings
SP - 1704
EP - 1709
BT - 2003 IEEE Power Engineering Society General Meeting, Conference Proceedings
T2 - 2003 IEEE Power Engineering Society General Meeting
Y2 - 13 July 2003 through 17 July 2003
ER -