A Flexible Distribution Network Topology Determination in Presence of Scattered Energy Sources Using Coherence Between Load Type and Components

Abstract

Efficient reduction of power losses in modern systems can be achieved by selectively connecting tie lines and disconnecting radial branches in distribution networks with scattered energy generation sources. The influence of load power is pivotal in this optimization process. Consequently, it becomes crucial to accurately model the demand side, portraying the behavior of electricity consumers more effectively. Given that loads are not constant and exhibit variations with changes in voltage magnitude, contingent on the consumer type, it becomes imperative to represent each load through its load model's constant-impedance, constant-power, and constant-current components. Establishing the relationship between these components and load types is essential for proposing more flexible reconfiguration models. Therefore, this study employs mathematical formulations to express the correlation of load components with consumer types, aiming to provide a more flexible reconfiguration formulation compared to conventional models. The results obtained from well-known distribution systems demonstrate that the proposed framework is sufficiently efficient, offering optimal solutions within a shorter computing time compared to other existing reconfiguration models.