24 Phase, Unrestricted frequency changer cycloconverter - Project for TELEMBRA and COBRAPI - CSN - 1979 Project
12/06/2012 16:27
Design of a VVVF for synchronous motor control, through a forced commutated 24 phases Unrestricted frequency changer
The switches was thyristors and the control used Z80 microprocessor. All the control was digital. The design was intended for full control of high power, low speed, Synchronous motors.
The range of frequency was fro zero hz up to 300Hz departing from a 60Hz power supply and wutgout any DC link