With zero field current, armature back yoke flux density is 1.2 t.
励磁电流为零时，导磁机壳的磁密为1.2 T。
As may be seen from the diagram, dc flux going through the back yoke decreases with increasing equivalent gap flux, and vice versa.
由图可见，通过导磁机壳的直流磁密随着等效气隙磁密的增加而下降，反之亦然。
When the switched reluctance motors operate in two phase excitation mode, the phase flux linkage will be reduced due to the high magnetic saturation in the stator and the rotor yoke.
开关磁阻电动机在两相励磁的工作条件下，定转子轭部磁场高度饱和使每相磁链有所减小。
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