Abstract
The advanced electric power grid promises a self-healing infrastructure using distributed, coordinated, power electronics control. One promising power electronics device, the Flexible AC Transmission System (FACTS), can modify power flow locally within a grid. Embedded computers within the FACTS devices, along with the links connecting them, form a communication and control network that can dynamically change the power grid to achieve higher dependability. The goal is to reroute power in the event of transmission line failure. Such a system, over a widespread area, is a cyber-physical system. The overall reliability of the grid is a function of the respective reliabilities of its two major subsystems, namely, the FACTS network and the physical components that comprise the infrastructure. This paper presents a mathematical model, based on the Markov chain imbeddable structure, for the overall reliability of the grid. The model utilizes a priori knowledge of reliability estimates for the FACTS devices and the communications links among them to predict the overall reliability of the power grid.
Supported in part by NSF MRI award CNS-0420869, NSF CSR award CCF-0614633, and the UMR Intelligent Systems Center.
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Faza, A.Z., Sedigh, S., McMillin, B.M. (2007). Reliability Modeling for the Advanced Electric Power Grid. In: Saglietti, F., Oster, N. (eds) Computer Safety, Reliability, and Security. SAFECOMP 2007. Lecture Notes in Computer Science, vol 4680. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-75101-4_35
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DOI: https://doi.org/10.1007/978-3-540-75101-4_35
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