Comparison analysis of induction and line-start synchronous reluctance motors

Mateusz Grycmacher,Wojciech Szelag,Wieslaw Lyskawinski,R Nawrowski,L Kasprzyk,J Lorenc,A Bugała,Z Nadolny,A Tomczewski,K Budnik,J Jajczyk

doi:10.1051/itmconf/20192801005

Abstract

The article presents research on the development of a low-cost line start synchronous reluctance motor (LSSRM) on the basis of components of a mass-produced three-phase low-power cage induction motor (IM). The aim was to obtain the best functional parameters for both the steady-state work condition and the asynchronous start-up. In the design-optimization calculations of the LSSRM, a field model of electromagnetic phenomena developed using the MagNet program was used. Laboratory tests were carried out on the designed and constructed prototype of the LSSRM, and the obtained results were compared with the results of an IM test.

Highlights

The need to develop low-cost and reliable low-power electric drive systems operating at a constant rotational speed prompted the authors to undertake research on line start synchronous reluctance motor (LSSRM) adapted for direct start-up
These models were used to analyze the influence of the angular extent α and the depth h of the cut-out on the maximum Tm of the reluctance torque and
In order to determine the value of the angle and the depth h of the cut-out, for which the largest torque Tm is obtained for both considered rotor structures, optimization calculations were carried out

Summary

Introduction

The need to develop low-cost and reliable low-power electric drive systems operating at a constant rotational speed prompted the authors to undertake research on LSSRMs adapted for direct start-up. Due to the complex course of electromagnetic phenomena in electric machines, non-linearity of the magnetic circuit, induced eddy currents and the required high reliability of calculations for the analysis of operating states and motor design, a field model and the finite element method were used. This approach was used to simulate the operating conditions of the IM as well as LSSRM.

Simulation tests

Experimental research

Conclusions