Assessment of Residue Approach & Geometric approach to Select Wide-Area Signals for Power System Damping Control

In this paper, two different approaches are applied to the Kundur two-area four machines network in order to select the most effective signals to damped out the inter-area oscillations. The robustness analysis, simulations and different results show that in the case of wide-area signals selection, the geometric approach is more reliable and usefull the the residue approach. Also, the result conform that wide-area damping control scheme is more effective than local control for damping of inter-area oscillation.