Resilience-Oriented Critical Load Restoration Using Microgrids in Distribution Systems

An Input-to-State Stability-Based Load Restoration Approach for Isolated Power Systems

“…In the circumstance, restoration is used to make full use of the available energy storage to supply critical loads and enhance the resilience of the distribution network. Prior work is done in [5], where microgrids are used to restore loads based on the analysis of their ability to supply loads. In [34], pre-hurricane resource allocation is considered which helps to improve the effectiveness of load restoration after a hurricane occurs.…”

“…Other optimization objectives, such as power loss reduction are considered in [3]. Methods such as heuristic approaches [4][5][6], expert systems-based strategies [7], and mathematical programming approaches [8] are proposed to solve the optimization problem. In [9], a combination of genetic algorithm and fuzzy logic method is used to solve the optimization model of large-scale systems.…”

Critical Load Restoration Using Distributed Energy Resources for Resilient Power Distribution System

“…• Radial topology of each restoration path is maintained and DERs are not networked. Although DERs can be networked during the restoration process, the operation and control of an islanded distribution network supplied by multiple DERs requires advance control function typically not available in an existing grid [12], [13]. • The distribution system spans relatively small geographic area and all distribution lines are equally impacted by the disaster condition with an equal probability of failure.…”

“…Logically, an RSN with a lesser number of distribution lines (or nodes) will be more robust to post-restoration failure simply based on the principle of reliability for a series system [23]. Since the linearized formulation for effective path unavailability in (12) is equal to the sum of nodes in an RSN, minimizing the term results in a robust restoration plan for post-restoration failures.…”

Analysis of Determinants of the Impact and the Grid Capability to Evaluate and Improve Grid Resilience from Extreme Weather Event

“…It is shown that even though the methods used for the restoration are different, but the outcome of the operational versatility is uniform, which is the amount of restored load or customers. On the other hand, Gao et al [79] calculated the available energy in kWh for power restoration on critical loads by using microgrids, but it can also be transformed into the amount of restored load or customers.…”