Methodology for Designing a Traction Motor for Transport

Abstract

The article is devoted to the design of an asynchronous traction motor intended for work as part of an electric drive of vehicles: electric vehicles, electric buses, trams, trolley buses. The object of the study is a medium-sized bus. The required traction characteristics of the electric motor are constructed, the nominal and limiting characteristics of the increased torque. The dynamic characteristics have been built for a bus with a mechanical transmission and a diesel engine, as well as for a bus with an electric motor. A method is proposed for designing an electric motor based on mathematical modelling of its operation in the software complexes ANSYS RMxprt and INFOLYTICA MAGNET. According to this technique, the main parameters of the electric motor are determined. The results of modelling are given, graphs of the criteria dependence on the electric motor parameters. Experimental studies of the electric motor have been carried out. The results of mathematical modelling are compared with experimental ones. It was found that the discrepancy between the results of experimental and theoretical studies is no more than 5 %.

Keywords

• electric transport
• electric motor
• traction characteristics
• dynamic characteristics
• electric motor parameters