In recent years

with the development of intelligent power plant research and implementation

supervisory information system（SIS） system is becoming more and more important in realizing integrated management and control

overall benefit analysis and economic operation of the whole plant. Taking the SIS system construction of a thermal power plant as an example

a new deployment mode of SIS system network architecture is designed

which simplifies the network structure of SIS system and makes data processing more convenient; the hierarchical design of SIS system functional architecture

system hardware

software

security strategy and application functions are optimized in combination with the actual needs of power plant

resulting in high system reliability

high information interaction and perfect application functions it provides powerful tools for power plant production and operation

energy saving management and decision analysis

and provides reference for similar SIS system engineering design. It is suggested that the SIS system construction of thermal power plant should be based on the actual needs and technical development

and should be implemented in stages

and constantly updated

improved and upgraded.