The Dual Feedback Mechanism Based Asynchronous Power Flow Method for Integrated Transmission and Distribution Networks

With the high proportion of distributed generations (DGs) integrated into distribution networks (DNs), the relationship between transmission and distribution networks (T&DNs) is closer, and the analysis of the integrated transmission and distribution networks (I-T&DNs) has become inevitable. At present, the forward-backward-splitting (FBS) method is an asynchronous power flow method for the I-T&DNs with optimal convergence performance, but the FBS method has the disadvantage of the inflexible information interaction mechanism between the T&DNs, resulting in low computational efficiency. Therefore, this paper proposes the dual feedback mechanism (DFM) based asynchronous power flow method for the I-T&DNs. The DFM method has the new information interaction mechanism, which can reduce information-interaction time and improve computational efficiency. Simulation results verify the DFM method has better computational efficiency than the FBS method.