Optimal dynamic load shedding using a Newton based dynamic algorithm

This paper presents a reformulated optimal load shedding policy that takes into account generator control effects and voltage and frequency characteristics of loads. A dynamic problem is formulated with power generation considered as a dependent variable. The equality constraints associated with the load curtailment problem are the power flow equations in polar form utilizing the nodal admittance matrix approach. The inequality constraints are characterized by flexibility limits on line flows, voltage magnitudes and angles, and reactive power generations. The MINOS nonlinear optimization package is used to implement the reformulated problem. Numerical results obtained for the IEEE 14- and 30-bus test power systems are discussed.