Transformation

Transformations are used to convert multiphase systems into alternative coordinate systems. The calculation is based on the measured voltages and currents. The three-phase variables are converted into a two-axis system using the Clarke transformation. The values are then transferred to a rotating coordinate system using the Park transformation. This is used to determine the instantaneous active power and reactive power.

These methods are used in particular in the control of electrical machines and in the analysis of dynamic grid processes.

The measured values are provided via the STcPowerMeasurePhasor structure.