Bibik O. The development of theory and measures of improve the energy efficiency of switched reluctance and induction motors with variable load.

The object of research: quasi-static regimes of switched reluctance motor (SRM) and induction motors (ІМ) with periodic load. The purpose of research: increase of energy efficiency of switched reluctance motors and induction motors with periodic load. Research methods: numerical methods for solving systems of differential equations, methods of matrix transformations, methods of mathematical modeling, finite element method, methods of experiment planning, methods of optimization. Theoretical and practical results and novelty: further development of the theory of induction and switched reluctance motors for variable load in the direction of developing mathematical models, concepts of optimal design and principles of motor speed control taking into account the variable load, which made it possible to increase the calculation accuracy of the electromechanical processes and the formation of effective performance of motors; development of recommendations for appropriate selection and further improvement of IM for their operation in systems with variable load, experimental studies of the developed SRM. Subject and degree of implementation: the main results of work were used at development of drives of the compressors and pumping equipment. Scientific results are used in the educational process of the Kyiv National Institute of Design and in the National Technical University of Ukraine "KPI". Implementation efficiency: improvement the technical performance of IM and SRM for operation under variable load conditions. Scope: drives of technological equipment for industry, utilities sector, household appliances.