The　axial　field　hybrid　permanent　magnet　memory　machine（AFHPM‐-⁃MM）　employs　a　hybrid　permanent　magnet　excitation　combining　NdFeB　and　AlNiCo，　achieving　high　torque　density　and　a　wide　flux　adjustment　range.　A　separated　stator　structure　is　adopted　to　enhance　its　antide　magnetization　capability.　To　analyze　the　contributions　of　AlNiCo　and　NdFeB　to　the　induced　electromotive　force　（EMF）in　the　AFHPM‐-⁃MM，a　frozen　permeability‐-⁃based　in‐-⁃　duced　EMF　calculation　method　is　proposed.　Theoretical　analysis　reveals　that　the　conventional　method　exhibits　substantial　errors　in　calculating　the　AlNiCo‐-⁃induced　EMF，primarily　attributed　to　its　failure　to　adequately　account　for　the　dynamic　magnetization　characteristic　discrepancies　of　Al　NiCo　under　varying　magnetization　states.　Through　the　analysis　of　magnetization　variations　in　AlNiCo　during　the　flux　adjustment　process　under　different　magnetization　states，an　improved　induced　EMF　calculation　method　is　proposed.　Comparative　results　indicate　that，during　the　flux　enhancement　process，　the　average　calculation　error　of　the　AlNiCo　induced　EMF　is　reduced　from　19.　84%　to　2.　09%，　whereas　during　the　flux　weakening　process，the　error　is　reduced　from　3.　87%　to　1.　67%.　The　proposed　method　achieves　accurate　induced　EMF　calculation　for　the　AFHPMMM.　©　2025,　Southeast　University.　All　rights　reserved.