Title :
Decentralized data processing and management in Smart Grid via gossiping
Author :
Xiao Li ; Zhifang Wang ; Scaglione, Anna
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, Davis, CA, USA
Abstract :
In this paper, we propose a model for a peer-to-peer database system architecture where each server is aware of the power system state vector, and that can provide a scalable architecture for the Smart Grid. The key new component is a decentralized gossip-based state estimation (G-SE) algorithm included as a stored database procedure, which constantly updates via network diffusion, the global state information vector in each server of the distributed database system (DDBS). In addition to provide global situation awareness, state aware DDBS can attain communication and storage efficiency first, by using the temporal and spatial correlation of the state to compress it and, second, by storing the state as side information to store measurement residuals. Thanks to the G-SE primitive DDBS are more resilient to network attaks, can reduce network usage and streamline query processing for Smart Grid applications.
Keywords :
distributed databases; peer-to-peer computing; power engineering computing; power system management; power system state estimation; smart power grids; software architecture; G-SE algorithm; decentralized data processing; distributed database system; global situation awareness; global state information vector; gossip-based state estimation algorithm; measurement residuals; network attaks; network diffusion; peer-to-peer database system architecture; power system state vector; smart grid management; spatial correlation; state aware DDBS; stored database procedure; streamline query processing; temporal correlation; Database systems; Servers; Smart grids; State estimation; Vectors; Distributed database system (DDBS); smart grid;
Conference_Titel :
Sensor Array and Multichannel Signal Processing Workshop (SAM), 2012 IEEE 7th
Conference_Location :
Hoboken, NJ
Print_ISBN :
978-1-4673-1070-3
DOI :
10.1109/SAM.2012.6250466