On the connections among the electric torque, residue, functional sensitivity, participation and partial multi-modal decomposition

The electric torque, residue, functional sensitivity, participation and partial multi-modal decomposition (PMMD) are the most popular and effective techniques proposed so far for the analysis and design of power system damping controllers, such as power system stabilizers (PSS) and FACTS-based stabilizers. In this paper, the connections among these techniques are revealed through theoretical analysis so that a deep insight into the techniques and a theoretical basis for their comparisons are provided