Determination of conditions for optimal control of a permanent magnet synchronous motor of a single-stage reciprocating compressor for a proposed law of motion for ensuring the maximum efficiency

Abstract

Attention is paid to issues of reliability and economy while ensuring high performance of energy conversion processes occurring in various subsystems when a linear magneto-electric drive (LMED) is designed, which includes a permanent magnets synchronous motor with permanent magnets (PMSM) and a compressor stage. Reducing the number of elements included in the LMED, for example, transmission and conversion mechanisms is one of the directions that increase the reliability of the LMED. However, in this case, non-linear suction-discharge processes occurring in the compressor stage have a significant effect on the operation of the electromechanical converter. In this regard, the task of improving the energy efficiency of LMED can be solved in various ways. The article describes the LMED control conditions of a low-speed single-stage piston compressor, obtained from the solution of the problem of optimizing the design of the magnetic system PMSM, at which maximum efficiency is achieved. The relationship of the generalized parameters of the drive with the design features of the PMSM is established.