The plant level supervisory information system(SIS)was developed for power generation units in Taiyuan Iron Steel(Group)Co.

Ltd.(TISCO).Application of SIS in unit with multiple generation modes helped realizing information sharing

data collection

data storage

data query

data statistics and analysis

performance index comparison

distribution optimization of electric and heat load

and other functions

which enhanced the production efficiency and management level.Distribution optimization of the electric and heat load can save steam with amount of about 9t/h.Thus

when the required evaporation capacity is larger than 520t/h

the load distribution optimization of the boiler can save fuel with amount of 50kg/h to 130kg/h

other than the load distribution optimization can help the boiler save gas with low heat caloric value(2 958kJ/m3)by7 709m3/h.