| Abstract |
Temperature distribution in electrical machines is usually simulated by the methods of finite elements
and thermal schemes. The method of finite elements enables to obtain very detailed temperature
distribution in the machine, although for many applications, it is enough to calculate only one or a few
most important temperatures in the machine. If one needs to know only simplified temperature
distribution or high speed of calculation is required (for example on-line simulation), the method of
thermal schemes is suitable.
Thermal schemes differ from each other depending on details of construction of machines as well as
on assumed simplification. This paper deals with to comparison of the accuracy of two thermal
models: simplified one and comparatively more extended. Results of measurement and computer
simulation are presented for 3 kW 1415 rpm total-enclosed induction cage machine. |
