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[11-12, 2005] 

Journal of Electrical Engineering, Vol 56, 11-12 (2005) 290-297

OPTIMAL POLE SHIFT CONTROL IN APPLICATION TO A HYDRO POWER PLANT

Nand Kishor - R. P. Saini - S. P. Singh

   This paper presents a design technique to control a low-head hydro power plant connected as a single machine to an infinite bus (SMIB) system. A state-space model with two-input and two-output variables is considered. The control action is performed through the excitation and governor subsystems. The approach used is based on optimal pole shift theory. The solution to optimal control is achieved without solving any non-linear algebraic Riccati equation. The discussed technique offers satisfactory damping effects on speed and load angle oscillations. It is observed that the system's satisfactory response remains unchanged for any variation in a plant parameter that may occur due to change in operating conditions of a plant.

Keywords: optimal pole shift, single machine infinite bus, hydro plant, gain matrix


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