机组负荷在线优化分配技术在闵行电厂的应用

Application of On-Line Optimizing Assignment Technique for Load of Unit

电网要求每台机组的出力都由电网调度直接控制 ( AGC运行方式 ) ,因而传统的经济调度手段在电厂内部已经不再适用。从经济调度的必要性出发 ,提出采用机组负荷在线优化分配技术。采用这一技术的关键 ,是对电厂总出力的调控能力要达到电网调度直接控制每台机组出力时的水平。结合具体工程项目 ,对优化目标函数、约束条件及最优化求解方法等进行了研究。图 1参

The network requests that the contribution of every unit must be directly controlled by the dispatch of the network (AGC mode), so the traditional method of economical dispatch is no longer suitable in plant. For the necessity of economical dispatch, the methods of the on line optimizing assignment of the unit load have been brought forward. The key of the technique is that control ability of the plant's total contribution should reach the level in the condition that the network controls the units directly. Combined with a practical project, the optimization of target function, limit condition and the best resolution for the optimization are discussed in this article. Fig1 and refs 3.