IEEE Power & Energy Magazine - July/August 2018 - 106

The results of the 2016 survey show that system restoration
training and the plans supporting that training have improved
significantly over the past 25 years.

year, fewer than half the system operators in an organization participate in the exercises. Therefore, it is important to
incorporate lessons learned from each drill in the organization's ongoing training programs.
Commercial airline pilots practice a wide variety of
scenarios on high-fidelity simulators before sitting in a
cockpit ready to address real-life emergencies. By comparison, most system operators have limited opportunities to experience a wide variety of emergency scenarios
before possibly facing a real restoration. More frequent
and more varied training exercises with high-fidelity simulation would support a greater degree of system operator
readiness. The fact that most entities found a need to modify
their system restoration plans based on drill results is a clear
indication that the industry hasn't yet explored all possible
ways of efficiently separating and restoring portions of the
power grid.

Improve the Efficiency of Internal
and External Communication
with the proliferation of cyber and physical attacks, it is
essential that system operators recognize and report these
events in a timely manner. There is an opportunity for
more information sharing with respect to what cyberattacks
look like to a system operator. entities are required to have
policies in place to ensure as-soon-as possible reporting of
cyberattacks to various authorities. The intent is to have the
authorities analyze and share that information so other entities will become aware of the event and to increase awareness that an attack has taken place in one entity and could
expand or be duplicated elsewhere. such quick exchange of
information is possible only if a system operator can determine that an unusual operation or event is reportable, so
sharing information about what these events might look like
is critical.

Benefits of System Restoration
Training and Drills
Many benefits accrue from system restoration training and
drills. Perhaps most importantly, entities have used the lessons
learned to refine their company-specific restoration plans, and
many have shared these lessons learned with others in the
industry. a second outcome has been the development of job
aids for supporting restoration drills that would also be helpful
during a real restoration. a third benefit has been providing

106

ieee power & energy magazine

system operators with near real-time experience in restoring
systems from a state in which their own system is disconnected
from the grid; they are thus better prepared in the event they
face the need to restore their systems.

Conclusions
Many in the industry are doing much more than nerC and
ferC require: nerC reports and ieee technical papers
serve as a sound foundation for both generic and companyspecific system restoration training and drills. Because power
systems are complex and power system operations are not
linear, it is essential that system operators understand the
principles associated with a restoration. Completely accurate prediction of exactly how, when, or where a system
will disconnect from the rest of the grid is unlikely. we must
depend on system operators to apply their knowledge of system restoration principles to a wide variety of scenarios-
many of which are unanticipated.
Multiple advances have been made in the development of
system restoration training and drills over the past 25 years.
Today's system operators are better prepared than ever before,
but there is still an opportunity for improvement. for more
information about wgoT, contact Patrick everly at peverly@
oesna.com.

For Further Reading
M. M. adibi, Power System Restoration: Methodologies and
Implementation Strategies. new york: wiley, 2000.
J. D. willson, "system restoration guidelines: How to set
up, conduct, and evaluate a drill: a report by the operator
training working group," IEEE Trans. Power Syst., vol. 11,
no. 3, pp. 1619-1629, aug. 1996.
"grid security exercise gridex iii report," nerC, atlanta, ga, Mar. 2016.
ferC, nerC, and regional entities, "report on the
ferC-nerC-regional entity joint review of restoration and
recovery plans," Jan. 2016.

Biographies
J.D. Willson, retired, was with the Pennsylvania, new Jersey, Maryland interconnection.
M.E. Long, retired, was with the north american electric reliability Corporation.
p&e

july/august 2018



Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - July/August 2018

Contents
IEEE Power & Energy Magazine - July/August 2018 - Cover1
IEEE Power & Energy Magazine - July/August 2018 - Cover2
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