Radysh I. Assessment of components of additional loses of electrical energy in systems with semi-conductive converters

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0405U000693

Thesis Registration Form

0405U000693.pdf

Applicant for

Specialization

  • 05.09.12 - Напівпровідникові перетворювачі електроенергії

21-02-2005

Specialized Academic Board

К 26.002.06

National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

Essay

Object of investigation: energy processes in systems with converters of electric energy. Objective: development of algorithms on analysis of additional loses of electrical energy on the basis of Fryse capacity decomposition, taking into account non-sinusoidal shape of current (voltage). Methods: theory of differential calculus, electric circuit, functional conversion, method of variables of state, numerical methods of integration. Principal results: a model of a system with semi-conductive converters, which takes into account non-sinusoidal shape of signals, character of variation of parameters of elements of system, duration of technological process, was developed. An algorithm on calculation of electromagnetic processes in schemes with cyclically variable parameters of load and an algorithm of estimation of these processes were developed. Analytical formulas of dependence of components of additional losses of electrical energy on pulsation of voltage and current are obtained.

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