Based on the emulation system of CFB boiler equipped for supercritical 300 MW unit in Mengxi Power Plant

the control strategy of bed temperature has been presented

and three main affecting factors upon bed temperature

namely coal quantity

primary air flow rate

and circulating ash quantity

have been tested using emulation and quantitatively analysed.Results show that the primary air flow rate in operation of unit will change as the coal quantity changes.Through method of changing the circulating ash quantity

the bed temperature can be effectively adjusted.