Resilience-Oriented Restoration in Modern Power Distribution Networks
With Smart Electric Vehicles Coordination Framework
Abstract
In the era of cyber-physical-social systems, research lacks a
comprehensive framework to optimize dynamic coordination strategies for
electric vehicles (EVs) to enhance modern power distribution networks
(MPDNs) resilience. Public studies have not comprehensively addressed
the impact of intelligent transportation systems (ITS) and smart
charging systems (SCS) on MPDN resilience strategies after rare events.
To bridge this gap, a two-stage EVs coordination framework is proposed
to consider MPDN smart restoration. The first stage involves a novel
proactive EV prepositioning model to optimize EV prepositioning plans
before a rare event in order to enhance MPDN survivability during the
immediate aftermath of the event. The second stage involves an advanced
spatial-temporal EV dispatching model to maximize the number of
available EVs for discharge, thereby improving MPDN recovery after a
rare event. The proposed framework includes an information system
facilitating dynamic data exchange between EVs and ITS/SCS automated
systems and introduces a novel geographic graph to optimize EV routes
between charging points. Effectiveness of the framework is assessed on a
modified IEEE 123 node test feeder incorporating real-world
transportation and charging infrastructure. The results suggest that
significant enhancement in MPDN resilience is possible with smart
restoration strategies. Sensitivity analysis specifically demonstrates
that integrating recently invented technologies of the smart charging
systems and automated systems potentially provides significant benefits
if dynamic coordination strategies are employed in MPDNs.