Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Securing America's power grid

28.06.2006
Terrorists attack Colombia's electrical grid hundreds of times a year. What's to stop attacks on America's power lines?

An Iowa State University research team led by Arun Somani, chair and Jerry R. Junkins professor of electrical and computer engineering, is working to develop a network of wireless sensors that could monitor the country's electricity transmission system. While the sensors could pick up suspicious activity at power poles, they'd be especially useful at quickly locating any breakdowns. That could allow power companies to react in time to prevent power disruptions from cascading into blackouts. And the monitoring system could also help power companies quickly locate problems when severe weather tears down electrical lines.

With networks of sensors, "Power companies would have additional abilities to view their systems and that would assist in disaster recovery," Somani said.

America has a lot of transmission lines, substations and generators that could use some monitoring. The Department of Energy reported the country had 157,810 miles of transmission lines in 2004. And the department reported that America's power plants produced 3.97 billion megawatt hours of electricity in 2004.

The monitoring system depends on sensors housed in black boxes just a few inches across. Somani recently picked up one of the sensors inside Iowa State's Wireless and Sensor Networking Laboratory and showed off the electronics capable of watching out for conductor failures, tower collapses, hot spots and other extreme conditions. A tiny camera can also be mounted in the sensor to look for suspicious movements around power lines.

The project is supported by a $400,000 grant from the National Science Foundation and $150,000 from Iowa State's Information Infrastructure Institute.

The project's Iowa State research team also includes Manimaran Govindarasu, an associate professor of electrical and computer engineering; Murti Salapaka, an associate professor of electrical and computer engineering; and Zhengdao Wang, an assistant professor of electrical and computer engineering. Former Iowa State faculty member Vijay Vittal, now a professor of electrical engineering at Arizona State University, is also working on the project. Each of the researchers brings different specialties to the project.

And it's not an easy project, Somani said.

The researchers need to design a system that stands up to weather. They need to design sensors that can accurately monitor the power grid's electrical and mechanical characteristics. They need to find a way to monitor the area around electrical equipment for suspicious activity. They need to develop wireless communication networks so the sensors can send comprehensive data from far-flung areas to control centers. They need to design a diagnosis algorithm to accurately determine fault conditions and predict faults. They need to design a decision algorithm to reconfigure the power network to prevent or alleviate cascading failures. And they need to find ways to get electricity to the sensors because the electrical lines they're monitoring carry a different kind of power.

Somani said the researchers are making good progress on developing a prototype system. He said the research team is also starting to talk to power companies about the possibility of testing the system on the electrical grid. And he said project has implications for national security.

"With the increasing threat of terrorism around the world, more attention is being paid to the security of the transmission infrastructure," says a summary of the project. "Experiences in countries like Columbia, which has faced as many as 200 terrorist attacks on its transmission infrastructure per year, demonstrate the vulnerability of the power system to these kinds of events."

Mike Krapfl | EurekAlert!
Further information:
http://www.iastate.edu

More articles from Power and Electrical Engineering:

nachricht Failures in power grids: Dynamically induced cascades
25.05.2018 | Technische Universität Dresden

nachricht Beyond the limits of conventional electronics: stable organic molecular nanowires
24.05.2018 | Tokyo Institute of Technology

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Powerful IT security for the car of the future – research alliance develops new approaches

The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.

Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

In focus: Climate adapted plants

25.05.2018 | Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

 
Latest News

In focus: Climate adapted plants

25.05.2018 | Event News

Flow probes from the 3D printer

25.05.2018 | Machine Engineering

Less is more? Gene switch for healthy aging found

25.05.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>