high frequency detection method
An islanding detection method for multi DG systems based on high frequency impedance estimation
... and frequency [26]-[30] errors to the inverter ...active method could be amplified (jeopardizing the power quality and the system stability) or could counteract each other (causing failure of islanding ...a ...
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Application of Underwater Low Frequency Electromagnetic Fields Detection with Tss FDTD Method
... FDTD method, which is unacceptable. If we use the proposed method, however, only 2961 seconds for the two-step simulation are required to calculate the same ...FDTD method, a lot of run time and ...
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Fault Detection System for High Voltage Frequency Converter Based on the Fault Tree Analysis Method
... For high voltage frequency converters, there is a normal operating range that is more than the peak voltage of three-phase AC input ...the high voltage frequency converter power devices ...
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Detection and classification of turn fault and high-resistance connection fault in inverter-fed permanent magnet machines based on high-frequency signals
... and high-resistance connection (HRC) fault will lead to different consequences and require different mitigation ...resultant high-frequency components in both voltages and currents are utilised for ...
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High-Sensitivity Vegetation High-Impedance Fault Detection Based on Signal's High-Frequency Contents
... the method. It is fair to assume that, for an HIF detection method, security should come as a priority over dependability since HIFs occurrences do not cause great stresses in the system’s equipment, ...
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Damage Detection in Civil Structures using High Frequency Seismograms
... The method is outlined as ...short-duration high-frequency pulse ...this method is that the Greens function template specific to a potential location of failure can be used to approximate the ...
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A simple frequency-based delamination detection and localization method without baseline model
... All the cases considered and the results are summarized in Table 1. The points A,B, are chosen to be at 0.1L and 0.9L from the left hand support of the beam while N and M are located at .025L and 0.05L from the centre of ...
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Enhanced Detection Performance of Spectrum Monitoring Using Energy Ratio Algorithm for OFDM based Cognitive Radio Networks
... OFDM is a frequency division multiplexing scheme used as a digital multi-carrier modulation method. It can overcome many problems that arise with high bit rate communications, especially the time ...
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Efficient Solution To Remove Impulse Noise With High Density In Color Images Based On Locative-Adaptive Processing And Frequency Filter
... Butterworth frequency filter, an innovative method for detection and removing of impulse noise was presented while maintaining important information such as edges and texture image which includes new ...
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Investigation of numerical technique to evaluate frequency response analysis (FRA) data measurement of auto power transformer
... on detection of transformer winding displacement are Short Circuit Impedance Measurement (SCI), Low Voltage Impulse Method (LVI), and Frequency Response Analysis Method ...is high, ...
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Modeling of high frequency current transformer based partial discharge detection in high voltage cables
... of high voltage (HV) cables and cable accessories has been implemented predominantly using high frequency current transformers (HFCTs) as PD ...and detection involved in HFCT-based PD testing ...
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Effect Of High Frequency Input Location For Crack Detection In Nonlinear Vibro-Acoustic Method
... Vibro-Acoustic method technique is a method of introducing two signal frequencies in solid structure for crack ...are high frequency acoustic wave and low frequency vibration ...of ...
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The Effect Of High Frequency Wave In Vibro Acoustic Method For Crack Detection
... In the past years, many researchers have shown interest in using non-linear vibration and acoustic phenomena in many research areas including damage detection (Donskoy and Sutin, 1999). Parsons et al. (2006) and ...
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Research on High Accuracy Zero Cross Time Detection Method of Power frequency AC Signals
... time detection method is very important in the phase measurement of power- frequency AC ...The detection uncertainties of most of the CMOS comparator based methods are around 200 µs, which ...
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Multiscale Petrov Galerkin method for high frequency heterogeneous Helmholtz equations
... the method with the wave number k ...this method must be coupled logarithmically with the wave number and therefore requires the stability constant of the continuous problem to be polynomially dependent of ...
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A Novel Method of Flaw Detection in a Structure Triggered by Pendulum Impact using Acoustic Resonance Frequency Measurement
... The CUTs shown in Figure 7 are used for experimental detection of acoustic resonance frequency. These are off-the-shelf available seamless pipes of mild steel taken for investigation. The CUT is placed on a ...
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High-Frequency Filters Manufactured Using Hybrid 3D Printing Method
... different high-frequency filters were produced, and each was manufactured in two different ways, one using conventional PCB technology and the other using hybrid 3D ...of high- frequency filters ...
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USING AN ANT COLONY OPTIMIZATION ALGORITHM FOR IMAGE EDGE DETECTION AS A THRESHOLD SEGMENTATION FOR OCR SYSTEM
... outlier detection method called WMEVF has been ...value frequency and weighting ...outlier detection methods on Mushroom, Nursery, and Adult dataset show the fact that : ...
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Technology for humanitarian landmine clearance
... iii The limits of a high-tech detection technique neutron irradiation and detection of prompt gamma rays were examined a to advance understanding of this method and b to demonstrate the [r] ...
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Rfid Based Automatic Chalan System
... The RFID reader, which is also known as a transceiver is used to read and write on the tag. A magnetic field is generated by the RFID reader which also the RFID system to detect the objects through the tag that come in ...
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