Bridge Balance Control of Fuel Handling Machine for Daya Bay Nuclear Power Plant

In order to improve the outage efficiency of Daya Bay Nuclear Power Station,it is necessary to modify the motor-driven types of the fuel handling machine bridge,This paper focuses on the problems for the existing bridge crane for nuclear fule transportation and the characteristics and implementation of the new solution.After modification,the bridge crane was driven by two motors controlled by two separately motor drives,and a PLC was used to balance the operation of the two motors.This solution solved the synchronization problem under the high speed and long traveling distance for the bridge crane.