This paper proposes a robust
H2
feedback controller design for damping power system oscillations
over a wide range of operating conditions. Robust
H2
control technique based power system
controller is developed for both excitation system and speed governor control. The effectiveness of
the proposed power system controller is validated by a simple power system composed of a
synchronous generator connected to an infinite bus through a transmission line. A comparison
between power system responses at variety of operating conditions using the proposed H2 controller
and Linear Quadratic Regulator LQR control is obtained. The digital simulation results prove the
powerful of the proposed power system controller based on H2theory in terms of fast power system
mechanical oscillation damping over a wide range of operating conditions with system uncertainty
and parameters change.