Topic
Inertia
About: Inertia is a research topic. Over the lifetime, 12006 publications have been published within this topic receiving 164291 citations.
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65 citations
TL;DR: The objective of the proposed method is to find the steady-state operating point which minimizes the fuel cost, while maintaining an acceptable system performance in terms of limits on generator power, line flow, and voltage.
Abstract: This paper proposes an efficient method to solve the optimal power flow problem in power systems using Particle Swarm Optimization (PSO). The objective of the proposed method is to find the steady-state operating point which minimizes the fuel cost, while maintaining an acceptable system performance in terms of limits on generator power, line flow, and voltage. Three different inertia weights, a constant inertia weight (CIW), a time-varying inertia weight (TVIW), and global-local best inertia weight (GLbestIW), are considered with the particle swarm optimization algorithm to analyze the impact of inertia weight on the performance of PSO algorithm. The PSO algorithm is simulated for each of the method individually. It is observed that the PSO algorithm with the proposed inertia weight yields better results, both in terms of optimal solution and faster convergence. The proposed method has been tested on the standard IEEE 30 bus test system to prove its efficacy. The algorithm is computationally faster, in terms of the number of load flows executed, and provides better results than other heuristic techniques.
65 citations
TL;DR: This work evaluated two representative objects in two orientations to determine the influence of the number of two-dimensional cross-sections on the accuracy of the calculations and dramatically decreases data manipulation and computation as compared to the classical mass element summation technique employed for three-dimensional discrete objects.
65 citations
TL;DR: In this paper, a consistent structural analysis procedure to estimate the global and local load effects considering symmetric and anti-symmetric hydroelastic vibrations in high waves is proposed.
65 citations
TL;DR: The dynamics of "simple" tensile cracks are experimentally investigated and it is shown that these dynamics are in excellent accord with an equation of motion derived in the limit of an infinite strip.
Abstract: We experimentally investigate the dynamics of "simple" tensile cracks. Within an effectively infinite medium, a crack's dynamics perfectly correspond to inertialess behavior predicted by linear elastic fracture mechanics. Once a crack interacts with waves that it generated at earlier times, this description breaks down. Cracks then acquire inertia and sluggishly accelerate. Crack inertia increases with crack speed v and diverges as v approaches its limiting value. We show that these dynamics are in excellent accord with an equation of motion derived in the limit of an infinite strip [M. Marder, Phys. Rev. Lett. 66, 2484 (1991)].
65 citations