Results 21 to 30 of about 186,401 (311)
Frequency criteria for exponential stability
IMA Journal of Mathematical Control and Information, 2022 Abstract We discuss some frequency-domain criteria for the exponential stability of nonlinear feedback systems based on Popov’s hyperstability theorem. The main results are new bounds on convergence rates for perturbations of the damped harmonic oscillator, including the Hessian-damped case, when the perturbations satisfy certain ...
openaire +2 more sources
Resonant frequency stabilization technique in series-series contactless energy transfer systems
Archives of Electrical Engineering, 2017 A technique for stabilization of resonant frequency is proposed in this paper. An additional power circuit, a compensator that allows keeping constant resonance frequency was introduced by the authors.
Marcinek M. +3 more
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Geometrical scale-factor stabilization of square cavity ring laser gyroscopes [PDF]
, 2015 Large frame ring laser gyros performances are ultimately limited by the instabilities of their geometrical parameters. We present the experimental activity on the GP2 ring laser gyro.
Belfi, J. +13 more
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Microwave Frequency Doubler with Improved Stabilization of Output Power
Sensors, 2023 The passive multipliers based on semiconductor diodes, most frequently a Schottky type, should be driven by a certain value of input power, where the conversion losses are optimal.
Piotr Kwiatkowski +2 more
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Research on inertia characteristics and lifting strategy of grid-connected inverter
河南理工大学学报. 自然科学版ObjectivesTo address the problem of low inertia operation in the power system caused by the integration of a large-scale new energy source，Methodsthe inertia characteristics of grid-connected inverters were analyzed and methods of improving their inertia
LI Jifang, HAN Aishan
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Frontiers in Energy ResearchIn order to enhance the inertia situational awareness and stability of the power system in the context of the reduction of power system inertia and the challenge of frequency stability due to the high proportion of new energy access, the background and ...
Qiang Zhang +5 more
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Robust Frequency and Voltage Stability Control Strategy for Standalone AC/DC Hybrid Microgrid
Energies, 2017 The microgrid (MG) concept is attracting considerable attention as a solution to energy deficiencies, especially in remote areas, but the intermittent nature of renewable sources and varying loads cause many control problems and thereby affect the ...
Furqan Asghar +2 more
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Transportable optical cavity systems for terrestrial and space-borne portable optical atomic clocks
Frontiers in Quantum Science and TechnologyHigh finesse optical cavities have been the backbone of realizing narrow linewidth lasers to drive coherent excitations on dipole-forbidden transitions in atoms and ions for applications in atomic frequency standards.
Rishabh Pal +3 more
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Energies, 2017 This paper proposes a short-term frequency-response scheme of a doubly-fed induction generator (DFIG)-based wind turbine generator (WTG) for improving rotor speed recovery and frequency nadir.
Dejian Yang +6 more
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Study on the external cavity laser frequency stabilization based on fuzzy PID control
上海师范大学学报. 自然科学版, 2019 A fuzzy proportion,integral,differential(PID) control algorithm was proposed for the external cavity laser to achieve better frequency stability.The Matlab stimulation results demonstrated that the fuzzy PID control algorithm performed more effectively ...
WANG Yang +4 more
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