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Setting offset in torque control and Delta connection

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adhavan d
adhavan d 2023-8-30
评论： adhavan d 2023-9-27
Hi,
my model is based on ipmsm torque control with delta connection.
So,I used 30 degree (-0.523599 - rad) offset wwith electrical theta for 500 rpm and 60 nm.it works.
but when I used 30 degree(-0.523599 radian) offset with electrical theta for 8500 rpm and 16 nm,The machine torque can not been met request torque.
How to set offset value for all speed and torque in delta connection.

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Sabin
Sabin 2023-9-21
When using delta connection there are 2 changes that are needed:
  • Line current that we measure must be converted to phase current
  • An offset (-(120/N)*pi/180) is needed for electrical angle used in transformation of current from abc to dq. N is the number of polepairs.
The Three-Phase PMSM Drive example in Simscape Electrical shows how to use the controller in case of wye and delta. I hope this helps.

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