Software-Defined Networking (SDN) is a new architecture with symmetric/asymmetric network structures that separates the control plane of devices from data plane, and Controller Placement Problem (CPP) critical management problem in SDN. The main research content CPP to determine number location controllers placed topology, as well connection relationship between switches. However, traditional s...

microgrids are small-scale, low voltage (lv) power networks which employ renewable distribution energy resources (ders) with power electronic interfaces (peis). microgrids as single controlled units and active distribution networks require flexible control systems to ensure reliable and secure operation in different modes. these various operations of microgrid cause variations in voltage and fr...