31-05-2012, 11:10 AM
Self-healing networks
[attachment=23634]
The weak spot
A network is billions of tightly connected distributed heterogeneous components
Things happen on a wide time/spatial scale with massive interaction
A local disturbance can spread widely in zero time
Relationships and interdependencies are too complex for mathematical theories
Sources of Abnormality
Attacks from the outside world (service attack)
Hick-ups in the network communication
Failures on the network nodes
It’s a detection problem!
The Keeler-Allston disaster
On 10 August 1996, the Keeler-Allston 500 kV power line tripped creating voltage depression and the McNary Dam went to maximum
The Ross-Lexington 230 kV line also tripped and pushed the McNary Dam over the edge
The McNary Dam sets off oscillations that went to 500 MW within 1.5 minutes
The North-South Pacific INTER-tie isolated 11 US states and 2 Canadian provinces
An Initiative in Self-Healing
The CIN/SI is funded by the Electronic Power Research Institute and the US Dept. of Defense as part of the Government-Industry Collaborative University Research program
28 universities in 6 consortia started Spring 1999 to spent $30 M in 5 years
The approach is multi-agent technology
[attachment=23634]
The weak spot
A network is billions of tightly connected distributed heterogeneous components
Things happen on a wide time/spatial scale with massive interaction
A local disturbance can spread widely in zero time
Relationships and interdependencies are too complex for mathematical theories
Sources of Abnormality
Attacks from the outside world (service attack)
Hick-ups in the network communication
Failures on the network nodes
It’s a detection problem!
The Keeler-Allston disaster
On 10 August 1996, the Keeler-Allston 500 kV power line tripped creating voltage depression and the McNary Dam went to maximum
The Ross-Lexington 230 kV line also tripped and pushed the McNary Dam over the edge
The McNary Dam sets off oscillations that went to 500 MW within 1.5 minutes
The North-South Pacific INTER-tie isolated 11 US states and 2 Canadian provinces
An Initiative in Self-Healing
The CIN/SI is funded by the Electronic Power Research Institute and the US Dept. of Defense as part of the Government-Industry Collaborative University Research program
28 universities in 6 consortia started Spring 1999 to spent $30 M in 5 years
The approach is multi-agent technology