Optimization of Feedwater Pump Configuration for the M310 Nuclear Power Station

After reviewing the selection of the feed water pump configuration for Ling'ao I Nuclear Power Station and its operation,and based on the study results for several feedwater pump configurations which have been used in domestic and foreign nuclear power stations,several typical feed water pump con-figurations are compared and analyzed technically and economically.Considering the economics and reliabil-ity,we think the configuration of 2×50% turbine driven feedwater pump plus 2×25% electrical driven fe-edwater pump is better than that of 2×75% turbine driven feedwater pump plus 2×50% electrical driven feedwater pump.If the capability of one motor of feedwater pump can be increased from 10MW to 14～ 15MW and the voltage can be increased from 6.6kV to 11kV,the capacity of one electrical driven feedwater pump can reach 75% of the total capacity,then the configuration of 3×50% electrical driven feedwater pump is also accepted.