Supply Domain and Interval Model for Switching Devices Optimal Location in Active Distribution Network

In order to directly assess the supply capability of distribution generation (DG) and its matching relationship with the optimal placement of switching devices, based on interval programming, this paper firstly put forward the concept of supply domain for DG, as well as an interval programming model to solve for the domain. Through the scenario clustering and interval equivalent for the load and DG output, followed by the network state modeling, supply domain of DG was extended into the interval equivalent description for the supply domain of the active distribution network with multi-state and multi-scenario. Then aiming at the automation transform and active construction of the traditional distribution network, according to the supply domain model above, a bi-level interval programing model of switching devices optimal location was proposed, as well as a solution method for the bi-level interval model based on multiple population genetic algorithm. The verification results based on RBTS BUS6 F4 system demonstrate the validity and its superiority in the scope of application and computational efficiency.