METHOD TO DETERMINE THREE-PHASE LOAD IMPEDANCES DRIVEN BYPOWER CONTROL DEVICE WHEN NO NEUTRAL REFERENCE IS AVAILABLE IN AN ALTERNATIVE ELECTRICAL NETWORK

摘要

In accordance with an example embodiment of the invention, a three-phase power control device is configured to synchronize firing thyristor or SCR sets in consecutive combinations of two of the three phases, to supply current to consecutive combinations of two of the three loads in a three-phase load configuration, to determine real branch impedance of each load from three combinations of two supplied loads, without need of any electrical neutral reference.