EAST lower divertor coil power supply control system and method

The invention discloses a divertor coil power supply control system and method under EAST, the system comprises a main controller and a plurality of pulse units, the main controller is used for sampling a given current signal issued by an EAST master control system and a current value of a power supply module, carrying out closed-loop calculation, distributing pulse data to the plurality of pulse units after closed-loop calculation, and sending the pulse data to the plurality of pulse units; the pulse unit is used for generating a pulse string for the power supply module according to the received pulse data, the periodic trigger signal and the serial number of the power supply module of the pulse unit, and transmitting the pulse string to the power supply module through a post-stage driver and a transmitting optical port; meanwhile, state signals sent by the power supply modules through the receiving optical ports and the receivers are received, and states of all the power supply modules driven by the unit fo