Load current missmatch

Question

helo people,

i am observing Behaviour of the current on a symmetric tree phase system. the max current at the load  ist 1A and i dont understand why  the red current  ist -1.22  AT THE SIMULATIONSBEGINN. it seems like a current mismatch at the beginn. how i can solve that?i calculate the initial current from inductance within the phase

 

thank in advance

Answer 1

You are calculating the initial current flow incorrectly.  Currently, your simulation assumes the current is in phase with the voltage.  However, there is a phase shift due to the RL load.  Please look at the Simulation + Simulation Parameters + Initialization tab for an example of how to calculate the initial three-phase RMS current, and then the instantaneous current for each phase.