Improvement of Transients’ Parameters Evaluation Algorithms for Relay Protection and Automation with Use of Modern Methods of Digital Signal Processing
Transients in electrical power systems, short-time Fourier transform, wavelet transform, complex wavelets, wave spectrum, scalogram, frequency evaluation, phases and amplitudes of sinusoidal oscillations, evaluation accuracy and processing time.
Подобные документы
Study of electrical characteristics of organic diodes of metal phthalocyanine. Analysis of the role of the metal Cu, Al, Zn, Mg on electronic parameters. The substantiation of the nonideal behavior of the obtained values of n: 1.85, 2.22 and 4.40.
статья, добавлен 23.12.2016Review and description high reliability and security of power unit are basic requirements when the power unit maneuvering mode operation. Investigated of the power unit capacity automated control systems influence on axial offset under maneuvering mode.
статья, добавлен 29.11.2016Analysis concept of semiconductor is a solid whose electrical conductivity is in between that of a conductor and that of an insulator. Familiarization with the methods carrier recombination. Description features of preparation of semiconductor materials.
статья, добавлен 14.04.2015Causes of accidents on power lines depending on the voltage class. Analysis of electrical equipment connected to high-voltage lines. Study of leaks in transition insulators of network wires at transformer substations, location of trees, bird flocks.
статья, добавлен 07.12.2024Traditional technical solutions and algorithms for TCSC are analyzed in paper and new method for control of thyristors during power system transient conditions is suggested. An effective way for system oscillation damping on present compensation degree.
статья, добавлен 23.06.2013Analysis of the hybrid power plant, which consists of renewable energy sources: solar, wind power. Features of installed equipment and factors affecting its productivity. Analysis of information obtained from the hybrid power plant under investigation.
статья, добавлен 30.04.2018Evaluation of the effectiveness of the use of piezoelectric technology for the accumulation of energy produced by moving cars. Street lightening using piezoelectric roads. Electricity derived from fossil fuels. Israeli roads using piezoelectricity.
статья, добавлен 24.02.2019The principle of converting electrical energy into mechanical energy by an electromagnetic field. The invention and introduction to the production of a perfect electric generator. The essence and specificity of the principle of electromagnetic induction.
контрольная работа, добавлен 19.02.2019Review and analysis of physical and numerical modeling of the field emission energy conversion nanoscale systems. Study and characterization of the main features of the systems with a cathodes based on an array of carbon nanotubes or quantum dots.
статья, добавлен 30.07.2016- 85. Problems of protection during the massive penetration of renewable energy sources in power systems
Among the various sources of alternative energy, wind and solar are two prominent and promising alternatives for future electricity needs. These sources are integrated into distribution networks for local consumers. Adaptive retransmission schemes.
статья, добавлен 28.12.2020 - 86. Mathematical model of nanostructured processing based on parts of nonlinear dissipative oscillator
Model of nanostructured finishing and improving surface treatment of machine parts based on nonlinear dissipative oscillator, allowing to define the bifurcation parameters of frictional force and speed of loading of the material of the surface layer.
статья, добавлен 29.07.2016 The nonlinearly damped semilinear wave equation and a thermoelastic Mindlin-Timoshenko plate system with nonlinear viscous damping. The upper semi-continuity of the attractor with respect to the parameters related to the coupling terms and the shear.
статья, добавлен 30.10.2016The structure of the intelligent diagnostic system for power transformer equipment. The use of zeolite as a "drier" in the molecular sieve. Parameters of the moisture management system. Dehumidification of the insulation of oil-filled transformers.
статья, добавлен 10.12.2024Metrological examination of a technique of performance of measurements is understood as the analysis and an assessment of a choice of methods and measuring instruments. Operations and rules of carrying out measurements and processing of their results.
статья, добавлен 02.09.2016Split-phase symmetrical motor drive on the base of two voltage source inverters, controlled by algorithms of synchronized pulse width modulation, has been investigated. Simulation results are presented for dual three-phase power conversion systems.
статья, добавлен 02.02.2019Acquaintance with the features of the influence of polymer coatings on the lifetime of carriers in silicon crystals used in solar energy. General characteristics of the conditions of magnetic and X-ray exposure, analysis of electrophysical parameters.
статья, добавлен 23.12.2016Investigation of the differential capacity of a vibrating Coriolis gyroscope to suppress an external shock. Evaluation of the pulse amplitude in the voltage caused by external mechanical impact Analysis of the output signals of two measuring channels.
статья, добавлен 22.12.2016Replacement scheme for the calculation of short-circuit time search space for the simplest plot. Diagram of distribution line. Example of calculation for one moving line of AXO between section lines. Scheme of control process of finding places SC line.
статья, добавлен 23.05.2016A time-dependent, force-free, degenerate electrodynamics as a hyperbolic system of conservations laws. A pair of fast waves propagating with the speed of light and a pair of Alfven waves. The upwind schemes for the electrodynamics of black hole.
статья, добавлен 11.09.2012Analysis of samples based on carbon. Structural and electrical properties of grapheme-based samples for application of these samples in solar panels. Application in the modeling of hybrid energy systems and modeling of current-current characteristics.
статья, добавлен 15.09.2024The questions of synthesis and application of the mathematical model of a boost-type DC converter, which has found widespread application in modern electrical devices and complexes. Determining of the cause of the error in the intermittent mode.
статья, добавлен 13.10.2020- 97. Optimal control of mutual impact of electric grids for the reduction of their electric energy losses
Mathematical models and algorithms of determination of power losses in an inhomogeneous electric networks caused of their interaction. A way to reduce these losses by means of linear regulators that are installed in the electric networks of low voltage.
статья, добавлен 29.06.2016 The study of nonlinear dynamics of neurophysiological systems identify the presence of chaotic elements. Complex characteristic based on microsystem technology Geomath. Correlation method of measurement and statistical significance of the results.
статья, добавлен 29.07.2016Conducting anhydrous nitriding in a glow discharge with AC power supply of industrial frequency. Analysis of switching the shape of pulses, changes in their polarity, which is solved by the introduction of a device for nitriding in a glow discharge.
статья, добавлен 03.06.2022Infinitesimal transformations, Maxwell tensor and electromagnetic forces. The Maxwell field tensor. Integral curves associated with the equations of motion and the end of the Lorentz transformation. Electromagnetic force and geometry of space-time.
статья, добавлен 11.09.2012