It is necessary that operating region rotation speed and each loss point results are obtained as so to draw efficiency maps with actual measurements and calculators. This means that a large amount of calculations and time to organize the results are required. In concept design, evaluating efficiency maps within short amounts of time is also required. In JMAG-Designer, however, efficiency maps that account for the effect of iron loss and nonlinear magnetization characteristics can be created with ease.
In this example, a six-phase induction motor efficiency map is created in the concept design stage, and each operating point slip and iron loss are evaluated.
Efficiency Map, Slip Map
The efficiency map is displayed in Fig. 2, and the slip map is displayed in Fig. 3.
Efficiency can be understood from Fig. 2.
Slip can be understood from Fig. 3. Slip with maximum efficiency at each operating point can also be understood.
Loss Ratios at Each Operating Point
It is understood that iron loss dominates more than copper loss during high rotation speed.