电站机组瞬态过程性能监测初探

Study on Performance of Power Unit’s Transient Behavior

建立了汽轮机系统的瞬态数学模型和电厂主要经济性能指标详细计算模型 ,与已有的锅炉动态数学模型组成电厂主要瞬态性能数学模型 ;应用连接策略将模型各模块连接为整体 ;针对某 2 0 0MW机组 ,进行了给水流量减少 5 % ,燃料量减少 2 6 %时机组瞬态经济性能的计算 ,并对计算结果进行了分析。从而为进一步得到在各种工况下 。

Model for dynamic calculation of steam turbine system and model for performance index calculation of power plant are established. By combining these two models with the dynamic model for boiler which has been established, the model for transient performance calculation of power plant is built up. Using some strategies, Modules for the model are linked. Finally, with a 200MW unit as an example, some transient performance indexes are calculated while feed water decreases 5% and fuel flow decreases 2 6%. The results are analyzed. Thus a foundation for more precise performance analysis under various condition, including large variation is laid.