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TMS320F28379S: Current sampling in FOC with overmodulation with low-side current senses

Part Number: TMS320F28379S
Other Parts Discussed in Thread: C2000WARE


In PMSM FOC control application I would like to use overmodulation.

Because of that there will be period when Low-Side Mosfet is not switching (High-Side Mosfet Turned on for several PWM Periods).

I have for that 3 low side current senses hovever now can not solve the problem how to figure out in the algorythm which two of them are showing correct current value and take only them into account for further calculation.

So in each moment of time i need to somehow decide which two od 3 ADC current sensed values take into account and how to do that. Any ideas?

I dont want to use in-line sensing, so is there any method to do it with low-side senses?