Abstract
Abstract-For a totally enclosed fan-cooled induction machine,
two methods of numerical analysis are compared with measurements.
The first numerical method is based on computational fluid
dynamics (CFDs) and the second one uses a thermal equivalent
circuit (TEC). For the analysis based on CFD, a 3-D induction
machine including housing is modeled. The numeric solution of
the flow equations is determined for stationary temperature distributions.
For the TEC, a discretized one-and-a-half-dimensional
model of the induction machine is considered. With the TEC
model, stationary and transient operating conditions can be simulated.
Measurement results are determined by iron-copper-nickel
sensors embedded in the stator winding and the housing, as well
as by an IR sensor for measuring the rotor temperature. With
these measurement signals, stationary and transient operating
conditions can be analyzed. For stationary operating conditions,
additionally, the housing temperatures are determined by an IR
camera. The investigated simulation and measurement methods
reveal different local and global temperatures, and thus, only
certain aspects and characteristics of the obtained temperatures
can be compared. Nevertheless, certain conclusions can be drawn
from comparing these aspects considering the actual restrictions
of each of the applied methods.
Original language | English |
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Pages (from-to) | 809-818 |
Number of pages | 10 |
Journal | IEEE Transactions on Energy Conversion |
Volume | 24 |
Publication status | Published - 2009 |
Research Field
- Former Research Field - Low Emission Transport
Keywords
- Fluid flow
- induction machines
- simulation
- temperature