LOCATING DYNAMIC LOADS WHICH SIGNIFICANTLY INFLUENCE DAMPING

The paper proposes a techniques for locating loads where dynamics have a significant influence on the damping of power system inter-area osc illations. A feedback interpretation of load dynamics underlies this t echnique. It is shown that eigenvalue sensitivity and residues can be used to provide the desired information. This approach is applicable f or the analysis of large systems. Use of these ideas allows limited re sources to be devoted to obtaining good models of important loads, rat her than trying to obtain adequate models of many extra loads.