TMS320F28379D: how to calculate the Ld and Lq from inductance line to line

vasanth kumar78

Part Number: TMS320F28379D

hi,

please tell me how to calculate the Ld and Lq from line to line inductance from PMSM BLDC motor.

actually i am trying to instant spin. in that PMSM BLDC motor.(BLY172S-24V-4000) has line to line inductance of 1.2mH, in code user.h for LD =0.64 mH and Lq =0.64 mH.

please explain how to derive from mmotr inductance

over 5 years ago

0 KARTHIKEYAN RAJAMANICKAM over 5 years ago

TI__Genius 11645 points

Hello Vasanth,

One of our experts will get back to you on this.

0 Yanming Luo over 5 years ago in reply to KARTHIKEYAN RAJAMANICKAM

TI__Guru** 115420 points

Ld=Lq=0.5*Ls(line to line) if the motor is a SPM motor. If not, the manufacturer should provide Ld and Lq separately in the datasheet of the motor.

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TMS320F28379D: how to calculate the Ld and Lq from inductance line to line