A new continuation power flow tool for investigating the nonlineareffects of transmission branch parameter variations

摘要

This paper presents a new computational tool for investigating thennonlinear effects of varying multiple branch parameters. This is a newncontinuation power flow tool since this is the first time continuationnhas been applied to branch parameters, not bus junctions. Thenapplications for the new tool include: (i) contingency analysis due tonthe loss of any transmission facilities, (ii) investigation of thenexistence of a power flow solution under severe contingencies that mightnnot “converge” using standard power flow solvers, and (iii)nexamination of the nonlinear effects of various control devices (e.g.,nunified power flow controllers) on the state of a power system.nSimulation results are presented for a large-scale system with 3493nbuses and 6689 branches