Обобщенный метод структурно-параметрического синтеза электромагнитных систем электрических машин и индукционных аппаратов. Ч.1. Результаты сравнительного анализа вариантов трехфазных электромагнитных систем трансформаторов

Abstract

The commercially produced electromechanical devices of conventional designs have reached their practical limit of maturing. A smaller amount of wastes from the manufacture of magnetic cores, a lower material intensity, a lower level of losses, and more efficient cooling of electrical machines and apparatuses can be achieved through combined structural and geometrical transformation of the components in the active and mechanical parts. Examples of such transformations for induction motors, three-phase transformers and reactors are given. The availability of different versions of electromagnetic systems generates the need to develop a procedure for comparing them and making a well-grounded choice of the optimal version. The article presents a universal approach to and shows the possibilities of optimizing with respect to partial (minimal mass, cost, and losses) and integral (capitalized cost) criteria, as well as a method for performing an analytical comparative analysis of partial criteria and thermal state of different versions of electromagnetic systems having identical electromagnetic power capacities. The results from an optimizing comparison of indicators characterizing the mass, cost and losses between the basic planar version and versions of axial and radial electromagnetic systems of three-phase transformers with different versions of magnetic core manufacturing technology are presented.