Application of an auto-parametric circuit for controlling thyristor converters

Abstract

This article discusses the issues of excitation of second-order subharmonic oscillations, in circuits representing a two-core electro-ferromagnetic circuit with a capacitive load, in order to use it to control the states of thyristors, frequency converters. The stability of the solutions of the equations of the two-core chain is investigated. Recommendations are given for obtaining stable subharmonic oscillations of the order 1/2 f when using these circuits as a control element of thyristor frequency dividers by two.

Improving the quality of 0.4 kV electricity in household appliances due to voltage regulation

“…The disadvantage of such devices is the use of a ferromagnetic element and an electromechanical key in the control unit, an increase in weight and size indicators, and a relatively low reliability of operation [25]. A non-contact device that is built according to a booster circuit has its own advantage -the switching process is carried out without interrupting the current through the load during switching of power switches [33][34].…”

Analysis of reactive power consumption “Denav oil extraction plant”

“…The total installed capacity of 10/0.4 kV transformers is 14300 kVA. The substation is located on the territory of the enterprise, and the connection is made via cable and overhead power transmission lines [32][33].…”