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In this paper a metaheuristic optimization technique known as BAT algorithm is used for optimal tuning of controller parameters for obtaining the optimal performance of the load frequency control. This optimization algorithm is inspired by the echolocation behavior of natural bats. To validate the potency of the proposed method, a linear model of two-area thermal power system is examined as a tested...
This paper designs a holistic global workload management solution which explores diversities of a set of geo-distributed data centers and energy buffering in order to minimize the electricity cost, reduce the peak power drawn from utilities while maintaining the carbon capping requirement of the data centers. The prior work often designed solutions to address each of the aforementioned energy and...
In this paper, the optimization of coordination of directional overcurrent relays in an interconnected power system is presented. The objective of protective relay coordination is to achieve selectivity without sacrificing sensitivity and quick fault clearance time. The calculation of the time dial setting (TDS) and the pickup current (Ip) setting of the relays is the core of the coordination study...
This paper presents a statistical-mechanics-inspired procedure for optimization of the sensor field configuration to detect mobile targets. The key idea is to capture the low-dimensional behavior of the sensor field configurations across the Pareto front in a multiobjective scenario for optimal sensor deployment, where the nondominated points are concentrated within a small region of the large-dimensional...
Models using realistic parameters indicate that two-terminal, double-junction tandem solar cells based on CdTe or CuInGaSe2 and related alloys should be able to reach 25% efficiencies. 1 Key to achieving this is high transparency for below-band-gap photons. Cells with transparent back contacts (TBC) and CdTe thickness between 2.4 μm and 0.3 μm show over 65% average transmission for photons below bandgap...
Increases in peak current draw and reductions in the operating voltages of processors continue to amplify the importance of dealing with voltage fluctuations in processors. One approach suggested has been to not only react to these fluctuations but also attempt to eliminate future occurrences of these fluctuations by dynamically modifying the executing program. This paper investigates the potential...
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