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This work investigates the impact of the communication-channel cyber attacks on the dynamic performance of the islanded microgrid secondary frequency control. The cyber-physical system structure of the secondary frequency control is described. The secondary frequency control is introduced. A set of cyber attacks including denial of service (DoS) and false data attacks are then modeled. The Canadian...
Communication network brings new challenges such as time delay and data loss to wide-area damping control of power systems. The uncertainty caused by stochastic time delay of network communication increases the difficulty of wide-area control performance analysis. This paper proposes a mathematical expectation modeling approach to model and analyze wide-area controlled power systems considering the...
We present VASA, a visual analytics platform consisting of a desktop application, a component model, and a suite of distributed simulation components for modeling the impact of societal threats such as weather, food contamination, and traffic on critical infrastructure such as supply chains, road networks, and power grids. Each component encapsulates a high-fidelity simulation model that together...
This paper analyzed the structure and variation of sign language based the understanding of sign signal from the perspectives of human kinemics and linguistics. Our method proposed the definition and the description method of the basic movement features correlated with the individuality of signs to build the sign language computational model, based on ensuring the structurality of sign signals, then...
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