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per-unit values of Idref and flux reference for the sensored FOC of an ACI

Hamidreza Esmaeilian
Prodigy 60 points

Dear all,

-May anyone explain to me how per-unit value of Idref is calculated for an ACI? It is 0.1 for HVAC_Sensored (controlsuit package).

-If I want to add a flux control loop where Idref is the output of the flux PI controller, what is the flux reference value at per-unit? knowing that BASE_VOLTAGE is not used in HVAC_Sensored.

thanks

  • 0
    TI__Mastermind 27240 points
    Per unit values are based off the full scale rating of the power electronic hardware being used. For example, if your board has a voltage sensing circuit that gives 3.3V as feedback corresponding to 100V and 3.3V is max output from the sensing circuitry, then 1 pu is 3.3V of analog and is equivalent to 100V in actual signal being sensed. 0.1pu here will mean 10V of actual signal. Hope it helps.