Abstract
IEC-TDG, a benchmark wave generator programme to be approved in IEC 1083-2, requires any impulse wave analysis software used in the approved test to determine wave parameters within specified margins. This is because the digital measuring technique has so far become more and more common, but unlike high voltage measuring techniques found in IEC60-1/2, there has been no recommendation with the software.
Authors developed a wave analysis code which, contrary to the conventional ones, determines the wave parameters by solving a set of non-linear equations directly, precisely and very quickly. This paper reports that by applying Levenberg-Marquardt method in determining the fitting curve, one can compute the parameters not only from ideal noise-free wave data but also from noisy ones. The effectiveness of the proposed technique is demonstrated using the IEC-TDG data.
