Eman M. Hammad

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—A cyber-enabled parametric control scheme is proposed for efficient transient frequency and phase stabilization in the power grid. Different implementations of the proposed control are investigated in this work. First, a centralized control scheme is proposed where the controller relies on timely phasor measurement unit (PMU) information about the grid to(More)
—A parametric controller is proposed for the frequency and phase stabilization after the occurrence of a disturbance in the power grid. The proposed controller is based on the feedback linearization control theory. To drive the frequency of the system generators to stability, the controller relies on receiving timely phasor measurement unit (PMU) readings(More)
—A parametric game-theoretic controller is proposed to stabilize power systems during and after cyber switching attacks. The attacks are based on calculated switchings of external power sources in order to destabilize the power system. The controller relies on receiving timely information from the cyber component of the smart grid to control the output of(More)
—A flocking-based control strategy has recently been proposed to stabilize power systems during transient instability. The flocking paradigm offers a rich understanding of the coupling and interactions between the cyber and physical system components and employs this insight to build more intelligent distributed control schemes. This article investigates(More)
Flocking control has recently been used in smart grid applications to stabilize power systems during a transient instability period. Based on consensus and cooperation of multi-agent control systems, flocking control uses cyber information about the power system to help achieve stability after the occurrence of a fault in the power system. Recent work(More)
This work investigates the performance of distributed control schemes in mitigating the effects of a switching attack in smart grid systems. The control schemes use feedback linearization to inject and absorb power in order to achieve transient stability. On the other hand, an adversary utilizes fast-acting energy storage systems in conducting a switching(More)
We study the effect of control area design on the performance of distributed control. Specifically, we consider distributed implementations of parametric feedback linearization (PFL) control for efficient transient stability after the occurrence of a power system disturbance. We employ hierarchical spectral clustering and k-mean spectral clustering(More)