Dynamics and Collapse in a Power System Model with Voltage Variation: The Damping Effect
Fig 4
Phase diagrams on the M-Pm parameter plane; γ = 0.2 (a) and on the M- γ parameter plane; Pm = 0.5 (b) in the third-order power system. Again similar dynamics including stable fixed point (I), stable limit cycle (III) and their coexistence (II) are found with the change of M. Hence with the increase of M, the coexistence region increases gradually and the dominant stable fixed point region decreases correspondingly. This indicates that smaller M favors the occurrence of stable fixed point.