On the dynamics and transient stability of power systems post-transmission switching

In this paper we present the dynamic model for transient stability analysis of power systems post transmission switching. We show numerically that the existence of a steady state power flow solution or numerical post-switching stable equilibrium point does not guarantee the dynamic stability of the post-switching power system. Simulations are performed with WSCC 9-bus 3-machine and IEEE 145-bus 50-machine systems.