An Energy Complex Based on a High-Speed Electric Machine

Abstract

Purpose: The purpose of this study is to develop the scientific basis for designing high-speed electric generators used in conjunction with gas micro-turbines. Methods: To solve the tasks set, the theories of electrical machines; the finite element method; automatic control theory; methods of mathematical analysis, mathematical and circuit modeling; numerical modeling on a PC using FEMM and Matlab Simulink software complexes have been used. The research has been carried out on experimental samples of a high-speed electric generator and confirmed by the results of tests as part of an energy complex based on a gas microturbine in 2019. Results: A complex of scientifically based technical solutions for the design of a high-speed electric generator with an energy complex control system based on a micro-gas turbine has been developed. As a result, a high-speed electric generator for a gas microturbine with a power of 100 kW and a rotation speed of 100,000 rpm has been developed and manufactured. When designing, an asynchronous type electric generator with a massive rotor has been selected. A feature of the developed design is the use of a five-phase stator winding. A control system of an experimental sample of a high-speed electric generator for micro-GTU has been developed. Practical significance: It lies in the development of methods and algorithms for designing high-speed generator equipment for micro-GTU. Recommendations have been developed for choosing the type and configuration of a high-speed electric generator for an electric complex based on a micro-gas turbine. A method is proposed for calculating the parameters of the substitution circuit of a highspeed electric generator, which allows us to determine the parameters of the substitution circuit according to the known configuration of the active layer at the design stage.