A Multimicroprocessor-Based Controller for a Static Frequency Changer

This paper describes a static frequency changer controller in which the triggering pulse production as well as the various regulator algorithms have been implemented by the use of a multimicroprocessor system. The system includes a microprocessor-based triggering pulse generator designed for a three-phase converter supplied by a variable-frequency ac input. A complete description of this pulse generator is presented, and experimental results obtained with the static frequency changer are shown.