Name
Title | ||
|---|---|---|
HV impulse measuring systems analysis and qualification by estimation of measurement errors via FFT, convolution, and IFFT |
Abstract | ||
|---|---|---|
Quality of high-voltage (HV) impulse measurements requires adequate dynamic performance of measuring systems (MS) with respect to the waveforms to be measured. Qualification of MSs for various impulses is a prerequisite for repeatability and reproducibility of HV testing results. Alternative qualification procedures are considered with respect to the standard full lightning impulse including evaluation of significance of its frequency components. Duality of step responses and amplitude-frequency responses is described in detailed examples. Special attention is paid to creeping, encountered with some converting devices. Variations of MS response parameters can lead to improper conclusions when only conventional examination of the dynamic behavior is used. Evaluation of the response parameters is an unnecessary step, which brings additional errors to the HV measurements. The paper is pointing out advantages and practical achievements of the frequency-domain qualification of dynamic properties based on the step response data obtained both experimentally and analytically. Measurement errors of the impulse peak value and time parameters have been evaluated via fast Fourier transform (FFT), convolution, and inverse discrete Fourier transform (IFFT) for a commercial divider. Direct determination of the HV impulse measurement range, no need for any additional parameters, and illustrative graphical presentation of results are the main advantages of this approach. Limitations of different qualification approaches are discussed. |
Year | DOI | Venue |
|---|---|---|
2005 | 10.1109/TIM.2005.853674 | Instrumentation and Measurement, IEEE Transactions |
Keywords | Field | DocType |
convolution,fast Fourier transforms,frequency response,frequency-domain analysis,high-voltage techniques,impulse testing,measurement errors,qualifications,step response,voltage measurement,FFT,HV impulse measuring systems,HV testing,IFFT,amplitude-frequency responses,commercial divider,converting devices,convolution method,creeping,dynamic properties,fast Fourier transform,frequency-domain analysis,frequency-domain qualification,high-voltage impulse measurements,inverse discrete Fourier transform,lightning impulse,measurement errors,measurement quality,step responses,Convolution,discrete Fourier transform (DFT),fast Fourier transform (FFT),frequency-domain analysis,high-voltage (HV) measurement quality,inverse discrete Fourier transform (IFFT) | Frequency domain,Step response,Frequency response,Convolution,Waveform,Electronic engineering,Impulse (physics),Fast Fourier transform,Mathematics,Observational error | Journal |
Volume | Issue | ISSN |
54 | 5 | 0018-9456 |
Citations | PageRank | References |
1 | 0.47 | 0 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Zdenek Matyas | 1 | 1 | 0.47 |
| Martti Aro | 2 | 1 | 0.47 |