The real-time calculation of standard coal consumption rate for unit power supply of thermal power plant was carried out by the boiler efficiency and steam turbine efficiency online calculation.The results were pretreated to obtain the coal consumption fitting curve with quadratic polynomial form.Meanwhile

the data generation program for the DCS was developed by Visual C++ language

and the dll file or CPP file was compiled through Matlab file.Finally

combined with the database technology

the visualization of efficiency calculation for the boiler and steam turbine

as well as the real time display of the current coal consumption rate curve was achieved based on the mixed programming with Matlab and C++ Builder.The software for coal consumption curve can run without Matlab environment

which saves the system resource on the premise of ensuring the accuracy and efficiency of the calculation.