Abstract
The design and processing of conventional permanent magnet synchronous motors (PMSM) already have mature technology which reflect in the conformity of product and design expectations. But the problem of product inconsistency is serious in mass production of high-speed permanent magnet synchronous motors (HPMSM), and the performance often deviates from plan. In order to reduce the influence of these tolerances and achieve the purpose of fine modeling and accurate calculation, this paper study on the influence of assembly relationship between permanent magnets (PMs) and rotor core on physical field. Taking 50 kW-30,000 rpm HPMSM as an example, the effect of assembly error on distribution of air gap magnetic density and torque ripple are studied, and the influence of controller on HPMSM under error conditions is analyzed. At same time, in order to calculate thermal resistance caused by the error, this paper deduces the numerical calculation method of PMs’ equivalent thermal conductivity, which will simplify the refined calculation process of temperature field. So do the influence on shafting modals caused by errors. According to the above research, corresponding conclusions are obtained, which can provide a theoretical basis for ensuring the consistency of mass production and reliable operation of high-speed and high-power motors.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call