ABSTRACT
Smart grids are next generation electricity grid systems which introduces many smart devices, computation and communication capabilities into traditional power grids to make them more “smart” and more “interconnected” (S. Massoud Amin et al. 2005, A. Johnson 2010, P. Wolfs et al. 2009). Smart grids comprises of power infrastructure and information infrastructure. Power infrastructure consists of electric equipments to generate-deliver and distribute electricity; the information infrastructure assists communication and ensures safety, reliability, and efficiency (Y.J. Kim et al. 2010). Smart grids will satisfy more power demands in real-time, optimally transmit and distribute electricity resource from suppliers to consumers, remote control subscription of power usage by combining the advanced communication and information technologies. With the intelligent and networked meters, smart grids can automatically monitor electric delivery and consumption information, and also its safe status. However, with so many advantages afforded by smart grids, it inevitably introduces new security and privacy issues related to data collection, data transportation, data processing, and system monitoring.
