Abstract
Smart grid is a paradigm shift from the traditional Power grid which promises to make the electric grid both energy efficient and Fault tolerant. Trade-off between Energy savings and Security is a critical issue in Smart grid architecture. Smart grid architecture requires a high level secure data exchanges between sensors like Phasor Measurement Units and Advanced Metering Infrastructures like Smart Meters. In this study a Secure Smart grid Architecture model is proposed for the Smart grid network. Initially DamgardJurik encryption algorithm is applied on the data from the Phasor Measurement Units and a digital signature is then attached to the encrypted text to provide further authentication. The digitally signed data is collected in Data centre where it is decrypted. The proposed architecture has been implemented in both software and hardware. The effectiveness of the system is verified by introducing an intruder in hardware implementation.
Highlights
Smart grid has evolved as a powerful replacement for the traditional electrical power grid in the coming years
In our Smart grid system we need to aggregate all the Phasor Measurement Unit (PMU) values and our focus is on homomorphic encryption
Whenever values are transmitted from the Smart grid system it will be stored in the corresponding database
Summary
Smart grid has evolved as a powerful replacement for the traditional electrical power grid in the coming years. As the need for Electricity increases so is the need for efficient Power grids. The design of our traditional power grids is not able to meet the increasing demands of suppliers. We need a smarter solution and that is Smart grid. The need for an autonomous, self healing, reliable electric grid has paved the way for Smartgrid (Rahimi and Ipakchi, 2010). Bidirectional Communication between Power generation suppliers and end users, deployment of efficient sensors throughout the network makes the grid smarter
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