Open AccessMethods of synthesis of energy-efficient structures for regulating semiconductor frequency converters
Author(s) -
Sergey S. Bukhanov,
Azaliya A. Imanova,
Mariia N. Kornienko,
Л. А. Журавлева,
Vladislav V. Fediakov
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/537/6/062079
Subject(s) - converters , semiconductor , control theory (sociology) , power (physics) , electric motor , computer science , electronic engineering , electrical engineering , engineering , physics , voltage , control (management) , quantum mechanics , artificial intelligence
A mathematical model of the power part of the semiconductor converter was developed in this article. The analysis of processes in systems with synchronous electric drives. Experimental and analytical studies have shown that in electric drives with traditional synchronous motors with electromagnetic excitation it is necessary to take into account the influence of winding stray fluxes when setting up a control system. In electric drives with powers exceeding 1000 kW, the effect of leakage fluxes will increase significantly. Experimental methods have established that in multiphase electric drives, when the number of phases is greater than three, the influence of inductive scattering resistance can be neglected, and the mathematical model of the power section of a semiconductor converter is simplified. At the stages of adjustment, it is allowed to approximate the mathematical model of the system by sequential connection of aperiodic links of the first order, the time constants of which are specified during the study of frequency characteristics. The parameters of corrective relationships should also be refined by frequency response methods. Considered recommendations were successfully used in adjusting frequency converters for high-speed objects for LLC “RiK-Energo”.