Tech Briefs Magazine - March 2022 - Sensor-9

Applications
Protecting the U.S. Electric Grid with Physics-Based Cybersecurity
odernizing the aging U.S. electric
grid to meet 21st century power
needs means updating the vast, complex
network with " smart " technology to
leverage the automation, connectivity,
and renewable energy resources necessary
to deliver electricity more reliably
and efficiently.
M
While a smarter and more connected
electric
grid can increase resiliency
against threats like extreme weather
events, the grid's growing size and complexity
increases vulnerability to cyberattacks.
An increasingly digitized power
grid can create numerous entry points
for malicious actors seeking to disrupt
the nation's power supply.
Protecting the U.S. grid - a massive,
interconnected, cross-country network
that generates, transmits, and distributes
electricity - is critical to national security.
But as the grid becomes more complex
and hackers get more sophisticated, the
traditional IT approach to cybersecurity
is no longer sufficient, according to scientists
at the U.S. Department of Energy's
(DOE) Argonne National Laboratory,
who are working to make the electric
power grid more resilient to cyberattacks.
" Because the traditional utility network
was physically isolated from the
public network, an IT approach was sufficient
for most threats, " said Bo Chen,
an Argonne computational engineer.
" Today's utility network creates more
vulnerabilities as new technologies are
integrated. Many sophisticated attacks
can hide themselves so an IT approach
cannot detect them. "
New safeguards are needed to keep
the electric grid safe from attackers, said
Chen, who worked with Argonne computational
scientist Hyekyung (Clarisse)
Kim to develop a physics, rule-based
approach to cybersecurity, which adds a
security layer against attacks that have
penetrated the IT perimeter.
" Physics-based methods are attractive
solutions, offering the ability to check
data integrity and maintain system stability
even in the presence of malicious signals
and commands, " said Kim.
Chen and Kim recently helped engineers
at Hitachi ABB Power Grids, a leading
global technology company, to add a
Sensor Technology, March 2022
Cov
Figure 1. Along with Hitachi ABB Power Grids, scientists at Argonne have discovered how to better
protect high-voltage direct current transmission lines. (Image: srashee/Shutterstock)
Figure 2. The increasing number of local access points to high voltage DC substations, such as this
one, significantly enlarge the attack surface that can be potentially leveraged by malicious attackers.
(Image: Audrius J/Shutterstock)
new security layer and decision framework
to help pinpoint and halt cyber threats, to
keep the grid operating even if there is an
attack. Their work appeared in the journal
IEEE Transactions on Power Systems.
The Argonne team's work is part of a
wider project managed by Hitachi ABB
Power Grids for the DOE Office of
Cybersecurity, Energy Security, and
Emergency Response (CESER), to
www.techbriefs.com
ToC
secure high-voltage direct current
(HVDC) transmission lines.
Protecting HVDC systems from
cyberattacks
The U.S. electric grid consists of
about 700,000 circuit-miles of lines,
which primarily operate with alternating
current (AC) to deliver power. As the
grid is modernized, however, HVDC sys9
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Tech Briefs Magazine - March 2022

Table of Contents for the Digital Edition of Tech Briefs Magazine - March 2022

Tech Briefs Magazine - March 2022 - Intro
Tech Briefs Magazine - March 2022 - Sponsor
Tech Briefs Magazine - March 2022 - Cov1
Tech Briefs Magazine - March 2022 - Cov2
Tech Briefs Magazine - March 2022 - 1
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Tech Briefs Magazine - March 2022 - Cov3
Tech Briefs Magazine - March 2022 - Cov4
Tech Briefs Magazine - March 2022 - PIT-Cov1
Tech Briefs Magazine - March 2022 - PIT-Cov2
Tech Briefs Magazine - March 2022 - PIT-1
Tech Briefs Magazine - March 2022 - PIT-2
Tech Briefs Magazine - March 2022 - PIT-3
Tech Briefs Magazine - March 2022 - PIT-4
Tech Briefs Magazine - March 2022 - PIT-5
Tech Briefs Magazine - March 2022 - PIT-6
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Tech Briefs Magazine - March 2022 - PIT-9
Tech Briefs Magazine - March 2022 - PIT-10
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Tech Briefs Magazine - March 2022 - PIT-19
Tech Briefs Magazine - March 2022 - PIT-20
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Tech Briefs Magazine - March 2022 - PIT-22
Tech Briefs Magazine - March 2022 - PIT-23
Tech Briefs Magazine - March 2022 - PIT-24
Tech Briefs Magazine - March 2022 - PIT-25
Tech Briefs Magazine - March 2022 - PIT-26
Tech Briefs Magazine - March 2022 - PIT-27
Tech Briefs Magazine - March 2022 - PIT-28
Tech Briefs Magazine - March 2022 - PIT-Cov3
Tech Briefs Magazine - March 2022 - PIT-Cov4
Tech Briefs Magazine - March 2022 - Sensor-Cov1
Tech Briefs Magazine - March 2022 - Sensor-Cov2
Tech Briefs Magazine - March 2022 - Sensor-1
Tech Briefs Magazine - March 2022 - Sensor-2
Tech Briefs Magazine - March 2022 - Sensor-3
Tech Briefs Magazine - March 2022 - Sensor-4
Tech Briefs Magazine - March 2022 - Sensor-5
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Tech Briefs Magazine - March 2022 - Sensor-9
Tech Briefs Magazine - March 2022 - Sensor-10
Tech Briefs Magazine - March 2022 - Sensor-11
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Tech Briefs Magazine - March 2022 - Sensor-21
Tech Briefs Magazine - March 2022 - Sensor-Cov4
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