The first ultra supercritical double-reheat units built in China are lack of practical running experience. To solve this problem

a high-precision multi-function simulation system for the ultra supercritical double-reheat units was developed. Moreover

in the simulation system

the dynamic characteristics tests for recycling flue gas

burner swing angle and flue gas baffle opening were carried out

and the control strategy for the second reheating steam temperature of the actual unit was developed. The ultra supercritical double-reheat units' control strategy and the operation technology were verified before the actual unit was put into operation. The operation personnel's training and accident training were also carried out

to solve the problem of the lack of practical running experience and the shortage of professional running technicians. It provides guarantee for the smooth construction and safe and stable operation of the double reheat units.