Nakonechny R. Energy characteristics digital transformers based on signal wavelet transform

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0403U001225

Applicant for

Specialization

  • 05.11.05 - Прилади та методи вимірювання електричних та магнітних величин

28-03-2003

Specialized Academic Board

Д 35.052.08

Lviv Polytechnic National University

Essay

The thesis is dedicated to the development of noiseproof energy characteristics digital transformers based on signals wavelet transform. The new simulated computer models of active and reactive power measuring devices, that allow to substantially improve noise-immunity providing simultaneously the necessary accuracy and operation speed, are elaborated and researched on the basis of received analytical expressions for the evaluation of signals energy characteristics directly in the wavelet domain. The mathematical model of evaluation of wavelet transformer resultant error is obtained. The prototype of noiseproof active power measuring device, the experimental researches of which showed high metrological characteristics, is elaborated. The principal requirements to metrological equipment are formulated and practical procedure of adjustment calibration of noiseproof active power digital measuring device is elaborated.

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