ANALYSIS OF THE STEADY MODE OF SUBHARMONIC OSCILLATIONS IN THREE-PHASE FERRORESONANCE CIRCUITS
Journal Title: International scientific journal Science and Innovation - Year 2024, Vol 3, Issue 4
Abstract
It is known that the occurrence and existence of ferroresonant oscillations at the subharmonic frequency (SHF) in power transmission lines (PTLs) and in power supply systems is extremely undesirable, since they cause ferroresonant overvoltages at various frequencies. At the same time, there is a wide class of nonlinear electrical circuits in which the excitation of autoparametric oscillations (APO) at the SGC frequency forms the basis of frequency-converting devices that serve as secondary power sources. It is shown that three-phase nonlinear systems are, to one degree or another, equivalent circuits for power lines, the main elements of which are: longitudinal compensation capacitors, transverse compensation reactors, and transformers with a nonlinear characteristic. To study the pattern of excitation and maintenance of SGC at frequency (ω/3)in three-phase electroferromagnetic circuits (EFMC), theoretical and experimental studies were carried out on an equivalent model of a three-phase circuit with nonlinear inductance. To analyze the steady-state mode of the SGC at frequency (ω/3), the method of frequency-energy relations was applied. An algebraic equation is obtained that characterizes the steady-state mode of the SGC at frequency ω/3 in a three-phase nonlinear circuit. The frequency-converting properties of nonlinear inductance are also shown. The obtained results of the theoretical study were confirmed by experimental studies.
Authors and Affiliations
M. I. Ibadullaev
Keywords
Related Articles
- EP ID EP735390
- DOI 10.5281/zenodo.11091066
- Views 56
- Downloads 0
METHODOLOGICAL ASPECTS OF TEACHING NEW GENERATION TEXTBOOKS IN PRIMARY CLASSES BASED ON THE SKILLS OF THE "4 K" MODEL
Improving the quality of education is an important factor in making children interested in reading; study the best experiences of foreign countries in the field of education; giving more importance to children's critical...
THE ROLE OF LEXICAL COMPETENCE IN TEACHING FOREIGN LANGUAGES
In this article we talk about lexical competence involves knowledge of the studied language. The article presents the essence, structure and content of lexical competence in the process of teaching a foreign language
IDENTIFYING NER (NAMED ENTITY RECOGNITION) OBJECTS IN UZBEK LANGUAGE TEXTS
This article discusses NER (Named Entity Recognition) features and detection methods important to the field of NLP. The article describes the concepts of quick word recognition, categorization, understanding of the conte...
DIRECTIONS FOR HEALTH DEVELOPMENT IN STUDENTS
The fight against physical culture and sports, diseases, harmful imprisonment in the external environment is an important tool for healthy education. The article in the article in the development of a healthy lifestyle,...
THE ARCHITECTURE OF HISTORICAL MONUMENTS OF KARMANA CITY
The article aims to consider the architecture of historical monuments of Karmana city. Karmana is known in Uzbekistan as one of the oldest regions located at the intersection of the Ancient East and West, in the lower re...