Power system control with minimum eigenvalue sensitivity to operating conditions (Q1091324)

Power system dynamics around an operating point can be represented by a multi-input linear time-invariant state equation \(\overset\circ X=Ax+Bu\). When an unrestricted rank constant state feedback matrix F is used for exact pole assignment in a multi-input linear system there are degrees of freedom available for optimising additional criteria if necessary. In this paper it is shown how this design freedom can be utilized to minimize the sensitivity of the closed loop poles to variations in the matrix A (due to changes in operating conditions of the power system). The advantage of using a controller of unrestricted rank over a unity rank controller is shown.