| We present an approach to parallelizing optimal power flow (OPF) that is suitable for coarse-grained distributed implementation and is applicable to very large inter-connected power systems. The proposed distributed scheme can be used to coordinate a heterogeneous collection of utilities.; Three mathematical decomposition coordination methods are introduced to implement the proposed distributed scheme: the Auxiliary Problem Principle (APP), Predictor-Corrector Proximal Multiplier Method (PCPM), and the Alternating Direction Method (ADM).; We demonstrate the approach on several medium size systems, including IEEE Test Systems and parts of the ERCOT system. |
