Determination of installation location of SMES for power system stabilization

In the present paper, the method for determining the effective location of SMES (superconducting magnetic energy storage) for power system stabilization is reexamined. When the capacity of SMES is infinitesimal, the effective location can be determined from the eigenvector corresponding to the oscillation mode. When the SMES has a finite capacity however, the criterion may not be correct, because the eigenvector is affected by the SMES. The variation of eigenvectors with increasing capacity of SMES is examined, and the relationship between the SMES capacity and the system damping effect is investigated