IEEE PES T&D Conference & Exposition 2022 - 84

the transmission and distribution system will play a central
role in the energy transition.
Power grid infrastructure has been built and maintained
over the past century to deliver reliable, safer, and affordable
electricity across communities and industries. With the integration
of large renewable energy farms on the transmission grid,
and distributed energy resources on distribution networks, several
challenges and opportunities have presented themselves
during the modernizing of decades-old grid infrastructures.
Digital transformation with grid modernization technology
for the transmission and distribution system will play
the central role between renewable generation and prosumers
of energy. The four key aspects shown in Figure 1
illustrate grid modernization through innovation and digital
transformation, including:
✔ Improving grid performance and utilization of the
existing infrastructure with innovations in grid asset
(e.g., transformers, feeders) monitoring;
✔ Enhancing grid reliability and flexibility with digital
substations and software-defined automation and
controls;
✔ Maintaining grid stability and resiliency on large integrations
of inverter-based renewable energy resources
using system integrity protection schemes; and
✔ Enabling cyber security with end-to-end communication
for geographically dispersed DERs.
Evolving Grid Analytics Innovations
Power grid networks and equipment infrastructure are
monitored and controlled by edge devices with sensors and
actuators with some level of intelligent analytics. As illustrated
in Figure 2, the evolution of grid edge analytics innovations
moves from a reactive management strategy that
responds to failures after they occur to a more autonomous
future state with self-healing.
The majority of existing grid edge analytics are reactive to
failures to limit damage, with limited responsiveness to restore
automatically. The predictive stage may utilize system or asset
models with a combination of physics and machine learning
methods, including anomaly detection, classifications, and/or
learned patterns. Further grid innovations can be applied to suggest
potential implications and recommended actions. Finally,
the autonomous grid with self-healing would use edge-to-edge
communications with very limited or no human interventions.
Grid Innovations for Online
Asset Condition Monitoring
The aging of the existing installed base and the lack of sufficient
upgrades of the grid infrastructure are challenging
for grid reliability, resiliency, and affordability. Some of the
grid assest management challenges and it's possible solution
strategies are mentioned in the Table 1.
There are several methods of condition monitoring,
generally categorized as the following:
✔ Automatic and online: Continuous monitoring applied
while the asset is running; analysis performed
without human intervention.
✔ Automatic and offline: Scheduled monitoring applied
when the asset is stopped; analysis performed
without human intervention.
Improving Grid
Performance and Utilization
With Grid Infrastructure
Monitoring
Enhancing Reliability and
Flexibility With SoftwareDefined
Digital Substations
Maintain Grid Stability and
Resiliency on Integration of
Renewable Resources
Enabling Decentralization
and Security With Device
Management
figure 1. Grid challenges and opportunities.
84
ieee power & energy magazine
April 2022 Show Issue
IEEE PES T&D Conference & Exposition 2022

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