Distributed Optimal Power Flow for VSC-MTDC Meshed AC/DC Grids Using ALADIN

The increasing application of voltage source converter (VSC) based high direct current (VSC-HVDC) technology in power grids has raised the importance incorporating DC and converters into existing transmission network. This poses significant challenges dealing with resulting optimal flow (OPF) problem. In this paper, a recently proposed nonconvex distributed optimization algorithm—Augmented Lagrangian Alternating Direction Inexact Newton method ( aladin ), is tailored to solve AC/DC OPF problem for emerging multiterminal (VSC-MTDC) meshed hybrid systems. scheme decomposes handles it fully way. Compared state-of-art Method Multipliers xmlns:xlink="http://www.w3.org/1999/xlink">admm which general, not applicable problems, theoretical convergence guarantee. Applying these two approaches VSC-MTDC coupled an IEEE benchmark AC system illustrates that outperforms speed numerical robustness.