联合循环机组停机过程的负荷分配优化

发布时间：2019-08-05 18:46

【摘要】：为了解决联合循环机组在天然气气量不足情况下,停机过程中负荷分配的经济性问题,基于发电量最大的原则,通过对所有机组的综合性能进行分析计算,在保证机组安全停机的前提下,建立了联合循环机组的停机过程优化模型,优化分配各台机组停机过程中的气耗量。基于机组的停机过程优化模型,设计开发了计算程序,对某厂的3台联合循环机组在不同的升负荷率和降负荷率下的计算分析表明,升负荷率的变化对总发电量影响较小,而降负荷率的变化对总发电量的影响却很大。当剩余气量为10~5 m~3时,优化后停机方案的总发电量比正常停机情况下多28.409 MW·h,年收益可增加478.692万元。
[Abstract]:In order to solve the economic problem of load distribution in the shutdown process of combined cycle units under the condition of insufficient natural gas volume, based on the principle of maximum power generation, through the analysis and calculation of the comprehensive performance of all units, under the premise of ensuring the safe shutdown of the units, the optimization model of the shutdown process of the combined cycle units is established, and the gas consumption during the shutdown process of each unit is optimized. Based on the shutdown process optimization model of the unit, a calculation program is designed and developed. The calculation and analysis of three combined cycle units in a certain plant under different load rate and load reduction rate show that the change of load rate has little effect on the total power generation, but the change of load reduction rate has a great influence on the total power generation. When the residual gas is 10 鈮，

本文编号：2523276