Title :
A unified Smith predictor approach for power system damping control design using remote signals
Author :
Majumder, Rajat ; Chaudhuri, Balarko ; Pal, Bikash C. ; Zhong, Qing-Chang
Author_Institution :
Dept. of Electr. & Electron. Eng., Imperial Coll. London, UK
Abstract :
This brief illustrates a control design procedure for handling time delays encountered in transmitting the remote signals in power systems. A unified Smith predictor (USP) approach is used to formulate the control design problem in the standard mixed sensitivity framework. The solution to the problem is sought numerically using linear matrix inequalities (LMIs) with additional pole-placement constraints. The predictor based method is applied for designing a damping controller for a prototype power system. Simulation results show that the controller performs satisfactorily even though the feedback signals arrive at the control site after a finite time delay.
Keywords :
control system synthesis; controllers; damping; delays; feedback; linear matrix inequalities; power system control; predictive control; sensitivity analysis; telecontrol; H-infinity control; damping controller; feedback signals; finite time delay; interarea oscillations; linear matrix inequalities; mixed sensitivity framework; model reduction; pole-placement constraints; power system damping control design; remote signals; robustness; swing mode; time delays; unified Smith predictor; Control design; Control systems; Damping; Delay effects; Feedback; Linear matrix inequalities; Power system control; Power system simulation; Power systems; Prototypes; H-infinity control; Smith predictor; interarea oscillations; linear matrix inequality (LMI); model reduction; remote signals; robustness; swing mode;
Journal_Title :
Control Systems Technology, IEEE Transactions on
DOI :
10.1109/TCST.2005.854340
