Simultaneous phase and frequency control of a three-phase Inductor-Convertor Bridge

摘要

The Inductor-Convertor Bridge (ICB) is a DC-AC-DC convertor network using gate controlled thyristers which allows controllable energy transfer between two superconducting coils. Since an ICB system is asynchronous, both phase and frequency are controllable. Simultaneous open-loop phase angle control and closed-loop frequency control has been analyzed and demonstrated on a three-phase model using two 4-H superconducting coils.