Objective
| Topology | Squirrel Cage Induction Machine (SCIM) |
|---|---|
| Model Types | Analytical electromagnetic model EM1.SCIM Analytical structural model SM.ANL Analytical acoustic model AC1 |
| Quantities | Sound power level during run-up (SWL) |
| Geometry | NA |
| Winding | NA |
This project validates an important algorithm of MANATEE: the ability to calculate the variable speed acoustic noise level from a single speed simulation, the Load Extrapolation Algorithm (LEA). The validation consists in comparing the noise level of several single speed simulations, and the variable speed noise level obtained from a single speed simulation with load extrapolation technique Input.Simu.type_varspeed=1. This algorithm includes field weakening effect above the electrical frequency specified by Input.Simu.freq_mains.
Machine
- Manatee model for SCIM_008
Results
- Electrical and vibroacoustic simulation comparison (Variable speed vs synthesized sonagram)
One can see that both electrical and vibroacoustic outputs are the same. The load extrapolation option allows to calculate the variable speed noise and vibration due to magnetic forces in a few seconds on a 2 GHz Intel Core i7.
