Design of varying frequency three-phase synchronous signal circuit based on DSP

Each magnetic field power supply is consists of three-phase full bridge thyristor converters on HL-2A Tokamak. To enhance and improve the performance of the control system of power supply system, a varying frequency three phase signal circuit has been design based on digital signal processor, which was used to control power supply on HL-2A Tokamak. This synchronous system has many advantages and is successfully applied to the operation of the power supply system in plasma discharge.