A Reliability-Constrained Expansion Planning Model for Mesh Distribution Networks.

Autor: Li, Zihao, Wu, Wenchuan, Tai, Xue, Zhang, Boming
Předmět:
Zdroj: IEEE Transactions on Power Systems; Mar2021, Vol. 36 Issue 2, p948-960, 13p
Abstrakt: To achieve high reliability, the urban distribution networks are mesh-constructed and radial-operated, in which the outage load can be restored to adjacent feeders via tie-lines after faults. Conventionally, iterative optimization-simulation methods and heuristics are adopted for distribution network planning, which cannot guarantee global optimality. Besides, existing reliability-constrained planning model cannot explicitly assess the reliability indices for mesh distribution networks, so the resulted plan scheme may be overly invested. In this paper, we propose a novel multistage expansion planning model for mesh distribution networks, in which reliability assessment is explicitly implemented as constraints. The different investment/reliability preferences for buses are also customized. Specifically, post-fault load restoration between feeders through tie-lines is modeled as a case of post-fault network reconfiguration. The planning model is then cast as an instance of mixed-integer linear programming and can be effectively solved by off-the-shelf solvers. We use a 54-node system to test the performance of proposed model. Simulation results show the effectiveness and flexibility of this methodology. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index