Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: International scientific forum on computer and energy Sciences, WFCES 2021
Год издания: 2021
Идентификатор DOI: 10.1051/e3sconf/202127001024
Аннотация: The article presents an approach to the development of mathematical models of non-sinusoidal and dual-frequency power supply for a linear induction MHD machine for metallurgical purposes. The issues of construction and numerical modeling of the modes of a three-phase inductor for a liquid aluminum stirrer are considered. Reduction Показать полностьюof losses is ensured by the use of a toothless design of the MHD inductor. The absence of steel teeth reduces saturation of the magnetic circuit and current distortion. It is proposed to use the parametric model of the inductor under the furnace in the ANSYS environment to clarify the modes of the complex. To take into account mutual induction, using controlled sources, a circuit model was built, and a numerical calculation of the modes was carried out. The characteristics of instantaneous currents and voltages are obtained when powered from a three-phase source with close frequencies, with pronounced beats. It is shown that the presence of mutual inductance redistributes currents in the delta windings, which must be taken into account when developing the design of linear induction machines. It is proposed to use sources with non-sinusoidal periodic currents in the modeling system. The analysis is carried out and the main types of modulated voltage characteristics in the power supply system of the induction MHD stirrer are shown. © The Authors, published by EDP Sciences, 2021.
Журнал: E3S Web of Conferences
Выпуск журнала: Vol. 270
Номера страниц: 1024
ISSN журнала: 25550403
Издатель: EDP Sciences