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Estimation of Load Capacitance and Stray Inductance in Lightning Impulse Voltage Test Circuits (CROSBI ID 204986)

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Filipović-Grčić, Božidar ; Filipović-Grčić, Dalibor ; Gabrić, Petar Estimation of Load Capacitance and Stray Inductance in Lightning Impulse Voltage Test Circuits // Electric power systems research, 119 (2015), 439-446. doi: 10.1016/j.epsr.2014.11.007

Podaci o odgovornosti

Filipović-Grčić, Božidar ; Filipović-Grčić, Dalibor ; Gabrić, Petar

engleski

Estimation of Load Capacitance and Stray Inductance in Lightning Impulse Voltage Test Circuits

In order to obtain the lightning impulse voltage waveshape regarding front time, time to half and relative overshoot magnitude within the limits prescribed by IEC 60060-1, it is useful to accurately estimate the test circuit parameters, e.g. load capacitance and circuit inductance. A stray inductance consists of the inductance of impulse generator and the inductance of connecting leads. Load capacitance consists of voltage divider capacitance, test object and parasitic capacitances. In practice, the test object capacitance is often unknown. Capacitance measurement takes time and makes testing procedure more complex. Also, it is very difficult to estimate parasitic capacitances although their influence can sometimes be significant. This paper presents a new genetic algorithm (GA) based method for fast and accurate estimation of load capacitance and circuit inductance during lightning impulse voltage testing of a capacitive load. Computational and experimental verification of the method is successfully performed for standard and non-standard lightning impulse waveforms with various relative overshoot magnitudes.

lightning impulse voltage testing ; genetic algorithms ; load capacitance ; stray inductance ; lightning impulse generator ; Laplace transform

Journal Impact Factor from JCR Database (2013): 1.595 ; Category Name: Engineering, electrical & electronic ; Journal Rank in Category: 91 ; Quartile in Category: Q2.

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Podaci o izdanju

119

2015.

439-446

objavljeno

0378-7796

10.1016/j.epsr.2014.11.007

Povezanost rada

Elektrotehnika

Poveznice
Indeksiranost