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In countries such as India with low grid prices, energy firms are offering competitive PPA tariffs by setting up large solar farms. Given lower margins in operating these farms, there is great sensitivity to panels underperforming. To detect under-performance, existing condition monitoring methods compare generated power with an ideal yield calculated based on local weather conditions. Applying such...
Power grids are unarguably the backbone of national infrastructures, providing vital support to economic growth. On the other hand, economic growth and the integration of plug-in hybrid electric vehicles have led to relentless power demand increase. Unfortunately, the update of power grids cannot always keep pace with power demand growth, which imposes potential threats on the reliable operation of...
Power grid topology is essential for various aspects of smart grid monitoring and operations. Recent studies show that by using the grid topology, an adversary can construct stealthy attacks that can cause significant disruption to power delivery and the critical infrastructure. This paper shows that the power grid topology can be approximately estimated simply by observing multiple power injection...
In the power grid, Supervisory Control and Data Acquisition (SCADA) systems are used for executing various applications for monitoring and controlling purposes, which in turn enable stable operation of the grid. The integrity and timely delivery of SCADA data is critical to the operation of the grid and this makes them an attractive target for cyber-attacks. However, SCADA systems have various vulnerabilities...
Unlike the traditional optimal PMU placement problems which are assumed that PMUs have unlimited capability of monitoring remote buses via propagation rules, we formulate this problem with considering the depth of observability propagation (DOP) in this paper. Two problem formulations described by mixed integer linear programming (MILP) are proposed. Under this framework, interactions between the...
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