ANALYSIS OF ELECTRICAL PROCESSES IN ALTERNATING VOLTAGE CONTROL SYSTEMS
E. Barudov, E. Panov, S. Barudov
Strony: 154-181
Opublikowano: 1 Jan 2010
Wyświetlenia: 113
Streszczenie: One of the problems concerning the quality of electric power refers to amplitude control of supply voltage alternating in time. This paper presents an analysis of the problems of autotransformer discrete alternating voltage regulators (ADAVR) through simulation models while accounting for the specific features of a particular circuit design. These models are based on the non-linear parameters of the constructive components, such as: windings and ferromagnetic core in autotransformers, thyristor commutators, switch-off assemblies and load. The analysis has been basically made by the state variables method in the temporal field. A special algorithm has been developed for part-by-part solving of the obtained sparse matrix equations of cell structure, which have almost singular matrices. The obtained solutions show insignificant error accumulation from the computations and great stability in time. An automated computer program, AVTO, has also been developed to simulate ADRAV processes in MATLAB environment. The program operates with parameters of autotransformer windings, parameters of ferromagnetic core, parameters of thyristor switches and these of switch-off assemblies. The program analyzes all three intervals inherent to the commutation process and represents in series the behaviour of the individual quantities in time. The data from the simulated processes have been experimentally verified using a prototype and have shown a good correspondence. A system version for virtual design of discrete voltage regulators has been put forward.
Słowa kluczowe: autotransformer discrete alternating voltage regulator, semiconductor commuting elements, thyristor, commutation process
Cytowanie artykułu: E. Barudov, E. Panov, S. Barudov. ANALYSIS OF ELECTRICAL PROCESSES IN ALTERNATING VOLTAGE CONTROL SYSTEMS. Journal of International Scientific Publications: Materials, Methods & Technologies 4, 154-181 (2010). https://www.scientific-publications.net/en/article/1003372/
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