Abstract:
As the key equipment of power plant, the motor-driven feed pump plays an important role in ensuring the economy of the unit, and its start and stop are directly related to the safe and stable operation of the unit.According to the configuration mode of motor-driven feed pump in a 350 MW direct air cooling unit of a power plant, the control strategies of multiple motor-driven feed pumps interlocked startup, joint start with the standby pump, scoop tube tracking when the automatic pump being combined, and Runback control when the feed pump being lost are proposed.Through static test and actual operation verification, it meets the production requirements, which can provide a reference for the control strategy of the motor-driven feed pump with similar configuration.