引入LEC寿命管理的汽包锅炉机组负荷分配优化

以煤耗最小为目标函数的优化方法，虽然燃料费用最为节省，但是由于参数波动大且频繁，对机组造成了更大的伤害。文中将寿命延长控制（LEC）概念引入机组负荷分配优化工作中，将汽包寿命损耗考虑到机组负荷分配的优化中，在电网负荷变动越来越剧烈的形势下，这种模型是一种更加符合电厂实际的调峰方案。在寻优过程中，引入随机微粒群算法，该算法适用于快速寻优，能在速度和精度上满足计算要求。计算结果表明，LEC寿命管理方法的结果比平均分配负荷方法每日节省1393元，而寿命损耗却不增加。

Optimization of Drum Boiler Unit Commitment Based on Life Management Strategy Named Life-extending Control

The model aimed at minimizing coal expenditure can get the lowest coal cost,but simultaneously does more harm to the boiler drum's life because of the resulting big and frequent parameters fluctuation.A life-extending control(LEC)strategy is introduced to the unit commitment with life loss considered.Because the power loads vary tougher than before,this model is a more practical unit commitment scheme for power plant.Stochastic particle swarm optimization(SPSO)algorithm is introduced to the optimization process.Since the SPSO algorithm can quickly search the optimal solution,the speed and decision demand can be satisfied simultaneously.The results show that the model proposed can save 1 393 yuan per day than mean unit commitment method with less drum life loss than the latter.