Paweł Idziak

Analysis of power parameters of the squirrel cage motor and LSPMS motor with U-shaped magnets

The paper presents the special algorithm and software for the transient FE analysis of electromagnetic phenomena in a squirrel cage induction motor and in a line start permanent magnet synchronous motor. The presented algorithm and the elaborated specialized software for the finite element analysis of transients and steady states are used to determine the power parameters of the squirrel-cage induction motor as well as the Line Start Permanent Magnet Synchronous Motor (LSPMSM). The nonlinearity of the magnetic circuit, the movement of the rotor and the skewed slots have been taken into account. The results of computations have been compared with measurements. The conclusions from the comparison of calculation results with the results of measurements were presented. (Analiza parametrów energetycznych silnika indukcyjnego klatkowego i silnika synchronicznego z magnesami w kształcie litery U o rozruchu bezpośrednim). Streszczenie. W artykule przedstawiono model polowy oraz opracowane na jego podstawie algorytm oraz oprogramowanie do analizy procesu rozruchu i ustalonych stanów pracy silnika indukcyjnego klatkowego oraz silnika synchronicznego magnetoelektrycznego przystosowanego do rozruchu bezpośredniego. W rozważaniach uwzględniono nieliniowość obwodu magnetycznego, ruch wirnika oraz skoszenie żłobków wirnika w silniku indukcyjnym. Obliczenia związane z uwzględnieniem skosu rdzenia stojana wykonano przy zastosowaniu modelu quasi-trójwymiarowego. Zaprezentowano wybrane rezultaty badań symulacyjnych i laboratoryjnych. Przedstawiono wnioski wynikające z porównania wyników obliczeń z rezultatami pomiarów.

Compared analysis of LSPMSM and squirrel-cage motor exploitation with variable rotational speed

Compared analysis of lspm sm and squirrel-cage motor exploitation with variable rotational speed

Influence of the structure of electrical machine rotor for the stator deformations during operation

This paper presents the results of tests on an induction machine with a squirrel cage rotor (classic design) and on a machine with a rotor having permanent magnets in addition to the cage - a synchronized induction machine with an immediate start capability. In both cases, the stator was the same. The research related to stator deformations generated during a normal operation of the machine operating at idle, loaded with a torque equal to the moment of inertia of the tested rotor and loaded with rated torque. Natural frequencies of the stator were previously determined. They were determined both experimentally and computationally. The deformations of the machine were determined for the most representative frequencies, taking into account natural stator frequencies.