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Identifying a small group of power and communication lines whose removal initiates a cascading failure and results in a blackout is critical for the operation of the smart grid. Once identified by an attacker, such a group becomes a threat to the availability and throughput of the entire system. In this paper, we introduce a vulnerability analysis based on the dynamics of the power grid, and the associated...
The development of smart grid, electric vehicles (EV), and integration of renewable energy sources (RES) changes the existing power grid. Volt-VAR optimization (VVO) is a well-known problem to reduce the losses along the distribution lines. Current VVO does not endorse the role of elastic and inelastic loads, EVs, and RESs to decrease the reactive losses and hence the cost of generation. We propose...
Smart grid applications demand the availability of a reliable and accurate time signal. Measurements and events need to be correctly aligned to enable proper actions and decisions. Precision Time Protocol (PTP) is the favored protocol for time distribution across smart grid domains. The correct functionality of PTP is of paramount importance and its security is of high priority. To harden its security,...
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