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Transient response

About: Transient response is a research topic. Over the lifetime, 12309 publications have been published within this topic receiving 181218 citations. The topic is also known as: Transient phenomena.


Papers
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Journal ArticleDOI
01 Oct 1991
TL;DR: The singularity expansion method (SEM) for quantifying the transient electromagnetic (EM) scattering from targets illuminated by pulsed EM radiation is reviewed in this paper, where the aspect-independent (extinction) E-pulse and (single-mode) Spulse discriminant waveforms which, when convolved with the late-time pulse response of a matched target, produce null or mono-mode responses, respectively, through naturalmode annihilation.
Abstract: The singularity expansion method (SEM) for quantifying the transient electromagnetic (EM) scattering from targets illuminated by pulsed EM radiation is reviewed. SEM representations for both induced currents and scattered fields are presented. Natural-resonance-based target identification schemes, based upon the SEM, are described. Various techniques for the extraction of natural-resonance modes from measured transient response waveforms are reviewed. Particular attention is given to the aspect-independent (extinction) E-pulse and (single-mode) S-pulse discriminant waveforms which, when convolved with the late-time pulse response of a matched target, produce null or mono-mode responses, respectively, through natural-mode annihilation. Extensive experiment results for practical target models are included to validate the E-pulse target discrimination technique. Finally, anticipated future extensions and areas requiring additional research are identified. >

365 citations

Journal ArticleDOI
01 Feb 1973
TL;DR: In this article, a mathematical model suitable for the analysis of traveling-wave phenomena in underground power-transmission systems is presented, which can be applied to the solution of steady-state problems or, by means of Fourier-transform techniques, to solution of transient problems.
Abstract: A mathematical model suitable for the analysis of travelling-wave phenomena in underground power-transmission systems is presented. The model is developed in terms of a generalised angular frequency, and may therefore be applied to the solution of steady-state problems or, by means of Fourier-transform techniques, to the solution of transient problems. The model takes into account skin effect in the conductors and in the soil. It is then shown how the system model may be analysed using multiconductor-transmission-line theory to give the transient response of the cable system. The wave-propagation characteristics are given for the natural modes of a certain cable system. These characteristics are examined with a view to their implications on transient phenomena.

363 citations

Journal ArticleDOI
TL;DR: In this article, a novel controller for inverters is proposed to improve the frequency response of microgrid under disturbances involving large frequency deviations, which is simulated using Simulink/MATLAB software to test the proposed control strategy.
Abstract: Generation is shifting from a centralized power generating facility having large synchronous generators to distributed generation involving sources of smaller capacity. Most of these sources require inverters on the front end while being connected to the grid. Lower available kinetic energy, coupled with less short-circuit current ratio compared to large synchronous generators, compromises the transient stability of the microgrid when isolated from the main grid. Sources in the microgrid use droop control to share power according to their capacity without any form of communication. This paper proposes a novel controller for inverters to improve the frequency response of microgrid under disturbances involving large frequency deviations. It also discusses design of various parameters defined for the proposed control. The microgrid, which has two inverters and two synchronous generators, is simulated using Simulink/MATLAB software to test the proposed control strategy.

355 citations

Journal ArticleDOI
TL;DR: In this paper, a low-pass filter in the feedback loop is proposed to ensure uniformly bounded transient response for system's both signals, input and output simultaneously, and the small-gain theorem is used for the proof of asymptotic stability.
Abstract: This paper presents a novel adaptive control architecture that adapts fast and ensures uniformly bounded transient response for system's both signals, input and output, simultaneously. This new architecture has a low-pass filter in the feedback loop and relies on the small-gain theorem for the proof of asymptotic stability. The tools from this paper can be used to develop a theoretically justified verification and validation framework for adaptive systems. Simulations illustrate the theoretical findings.

350 citations

Journal ArticleDOI
TL;DR: In this article, free and forced vibration analyses for initially stressed functionally graded plates in thermal environment are presented, where material properties are assumed to be temperature dependent, and graded in the thickness direction according to a simple power law distribution in terms of the volume fractions of the constituents.

336 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023106
2022284
2021294
2020381
2019424
2018407