IEEE Power & Energy Magazine - March/April 2018 - 16

guest editorial

Mladen Kezunovic

energy & distribution
what's next in these management systems

Typical examples of rare but potentially disastrous events mentioned by
the authors are catastrophic weather
conditions (hurricanes, tornados, and ice
storms), as well as fires, earthquakes, and

meet the conditions of rare but extreme
events, and in figure 2, which adds the
complexity of resiliency viewed as a set
of measures that will assure a quick recovery of the electricity supply.

Resilience
Rnormal

Preventive Actions

Normal

Ralert

Normal
Alert

Restorative
Actions

Disturbance
Rem

Emergency

Severe
Rext Disturbance

Emergency Actions
Restorative
In
Cascading Extremis
Outages Actions
In Extremis
Time

figure 1. Resiliency interpretation as an enhanced reliability for rare, but
extreme, events.

Normal State

Disruption

Preparation

Recovery Action

F (t0)
Degradation

System Performance

T

The goals of This issue of IEEE
Power & Energy Magazine are to assess
state-of-the-art developments in energy
management systems (eMss) and distribution managements system (DMss)
over the last few years, contrast such
developments against the original design from approximately 50 years ago for
eMss and 40 years ago for DMss, and
discuss changes needed for the years
to come.
The first article, coauthored by researchers from Texas a&M university, raises a question of how eMs and
DMs design may evolve to address resiliency issues. Resiliency is a different
consideration than the traditional reliability requirement since, the authors
say, "While minimizing the likelihood
of large-area, long-duration outages
is important, a resilient system is one
that acknowledges that such outages
can occur, prepares to deal with them,
minimizes their impact when they occur, is able to restore service quickly,
and draws lessons from the experience
to improve performance in the future."
The resiliency issue is discussed by
M. Panteli and P. Mancarella, in their articles published in IEEE Systems Journal
(vol. 11, no. 3, pp. 1733-1742, sept. 2017)
and the article by D.N. Trakas and N.D.
hatziargyriou in Proceedings of the IEEE
(vol. 105, no. 7, pp. 1202-1213, July 2017).
This notion is conveyed in figure 1, which
takes a view that resiliency is just a reformulation of the reliability requirements to

F (tr)
t0

td

tp

tr

tr ′

Time
Digital Object Identifier 10.1109/MPE.2017.2779550
Date of publication: 21 February 2018

16

ieee power & energy magazine

figure 2. Resiliency interpreted as a time line for a quick recovery.
march/april 2018



Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - March/April 2018

Contents
IEEE Power & Energy Magazine - March/April 2018 - Cover1
IEEE Power & Energy Magazine - March/April 2018 - Cover2
IEEE Power & Energy Magazine - March/April 2018 - Contents
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IEEE Power & Energy Magazine - March/April 2018 - Cover3
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