Does anyone know how to convert between phase and sequence power for unbalanced voltages and currents?

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Bhupendra Desai

There is no, direct specific formula to find positive, negative and zero sequence power. From unbalance value of phase voltage and current. Find positive, negative and zero sequence voltages and currents,and if power factor is constant(unbalance not due to phase difference bet. voltage and current but only the magnitude), can use same formula power W=VICos phi. , for all three positive negative and zero sequence powers finding, using respective values of voltages and currents. Also (Sa+Sb+Sc)T=(Spos+Sneg+Szero)T

Xiangjing Su

Hi Bhupendra, you are right. There is no direct conversion formula between the phase and sequence power in an unbalanced case. Besides, according to you suggestion, I have solved my problem by using the phase and sequence conversion of voltages and currents instead of power.

Cheers!

Very Happy,Thank you.....