Robust linear quadratic Gaussian‐based discrete mode wide area power system damping controller

• DOI: 10.1049/iet-gtd.2015.1113
• Publication Date: 2016-02-08T22:06:40Z
• Authors: Mahendra Bhadu; Nilanjan Senroy; Indra Narayan Kar; Gayathri Nair Sudha
• Keywords: Mode (computer interface)

In this study, linear quadratic Gaussian (LQG) control is used for designing a wide area damping controller (WADC) in power system. The designed continuous and discrete mode LQG‐based WADC robust enough to deal with the problem of imperfect communication medium. medium includes process noise, measurement packet drop‐out signal latency remote signal. appropriate input location are selected using modal residue method. imperfections network modelled Pade approximations time delay by inserting random noise. Using two typical test systems, performance as system stability agent assessed frequency domain via time‐domain simulation non‐linear model on MATLAB/Simulink DIgSILENT software platform. Finally, real‐time implementation demonstrated Opal RT‐Lab digital simulator.