On the basis of control system for regulating valve and speed-varying pump

the study on simulation of full-process control system for feed-water pump of a drum boiler has been carried out in situation of three stages

namely start-up

low load operation

and high load operation

giving out method of setting parameters in each stage

analysing and approaching the relationship between parameters of the regulator and the feed-water control system in the control system of regulating valve and feed-water pump speed.The results of simulation have certain guiding significance for operation and debuging of the real control system

it is helpful to enhance the automatic putting into service ratio for the said control system.