I want to measure the instantaneous value of current at peak phase voltage in a three phase system. How can i do this ?

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Mansi Shah 2018-6-28

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回答： Joel Van Sickel 2020-9-2

I need a solution which can be m-file or Simulink model, either of them is appreciated.

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Answer 1

Joel Van Sickel 2020-9-2

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Hello Mansi,

you could set up a phase locked loop on the voltage, and use that knowledge to sample the current at peak values. A simpler less robust solution would be to measure voltage and sample current whenever the voltage starts to decrease. This will need filter and phase shifting to work in a real system with noise.

Regards,

Joel