Paper Info
Title
A Two-Level Simulation-Assisted Sequential Distribution System Restoration Model With Frequency Dynamics Constraints
Abstract
This paper proposes a service restoration model for unbalanced distribution systems and inverter-dominated microgrids (MGs), in which frequency dynamics constraints are developed to optimize the amount of load restoration and guarantee the dynamic performance of system frequency response during the restoration process. After extreme events, the damaged distribution systems can be sectionalized into several isolated MGs to restore critical loads and tripped non-black start distributed generations (DGs) by black start DGs. However, the high penetration of inverter-based DGs reduces the system inertia, which results in low-inertia issues and large frequency fluctuation during the restoration process. To address this challenge, we propose a two-level simulation-assisted sequential service restoration model, which includes a mixed integer linear programming (MILP)-based optimization model and a transient simulation model. The proposed MILP model explicitly incorporates the frequency response into constraints, by interfacing with transient simulation of inverter-dominated MGs. Numerical results on a modified IEEE 123-bus system have validated that the frequency dynamic performance of the proposed service restoration model are indeed improved.
Year
DOI
Venue
2021
10.1109/TSG.2021.3088006
IEEE Transactions on Smart Grid
Keywords
DocType
Volume
Frequency dynamics,service restoration,network reconfiguration,inverter-dominated microgrids,simulation-based optimization
Journal
12
Issue
ISSN
Citations 
5
1949-3053
2
PageRank 
References 
Authors
0.37
0
4
Name
Order
Citations
PageRank
Qianzhi Zhang1141.99
Zixiao Ma241.87
Yongli Zhu320.37
Zhaoyu Wang45915.73