Anderson-Acceleration-Based Power Flow Method for Integrated Transmission and Distribution Networks

Power flow analysis of integrated transmission and distribution networks (I-T&D) is the backbone of coordinated analysis of I-T&D. The traditional method for I-T&D power flow (ITDPF) is the master-slave-splitting-based method (MSSM), which divides an I-T&D into TN part, DN part and boundary part and solves sub-problems with alternating iterations to obtain global solution. This paper abstracts the MSSM as a fixed-point problem. Then, considering the limitations of the MSSM, an Anderson-acceleration-based method (AAM) is proposed to accelerate the ITDPF. This method modifies the iterative variables by solving a least-squares problem in each iteration. Numerical experiment demonstrates the accuracy of the proposed method. Also, better convergence and higher efficiency of the AAM is verified.