汽轮机调峰运行时蒸汽初压的优化确定

Optimization of Main Steam Pressure of Steam Turbine Unit under Cycling Loading

分析汽轮机组在调峰运行时 ,如果采用滑压调节方式 ,其发电量主要是蒸汽初压和循环水进口温度的函数 ,提出以机组实际供电功率与计划调度负荷之差最小 ,作为优化确定蒸汽初压的目标函数 ,并对国产2 0 0 MW汽轮机组进行了具体优化计划 ,得到的计算结果有助于指导运行人员的经济运行 ,并可作为电厂能耗分析的基准值。表 5参

This paper analyzes that under cycling loading, if we use sliding pressure operation, the power is mainly the target function of main steam pressure and cycling water temperature. Thus we propose that we can take the minimization of difference of real power and dispatched power as the target function of the optimization of main steam pressure. It also gives the calculation of the optimization 200MW power unit, the result of which is useful for the economic operation and can be taken as the reference value of power station energy loss analysing.