Modeling And Simulation Of 600MW Steam Turbine System

In recent years, many of plants were built to meet the increasing power demand, which marked the importance of training skillful operator by the use of simulation software. Moreover, to meet the improving requirement of safety and reliability, a simulation station should have more functions such as performance analysis and fault diagnosis than training.In this paper, after analyzing the background of simulation systems and the characters of APROS, an advanced supporting environment of process simulation, the models of all sub-systems of turbine-island for YANGZHOU NO.2 POWER PLANT were developed which is modeled by analyzing the plant, referring to some documents such as P&ID graphs, instructions and reports. In addition, principles were developed to divide object according to the characters of object and APROS.The turbine model was debugged according to current operational parameters of the power plant. The parameter under 100 percent load met the rated parameters given by WestingHouse Electric Corporation, which met the US standard of steady operation. Furthermore, additional dynamic test on turbine, high-pressure heater, low-pressure heater, deaerator and condenser showed that the dynamic curve went the same way with the actual operating status.The excellent arithmetic and simulation function of APROS gave the possibility of real time simulation. This turbine simulating system could provide economic analysis and fault diagnosis beside the basic function of training. A simulation station on 600MW plant had been achieved, which also left enough space for transplant, extension and optimization.