等微增率法在厂级AGC节能负荷分配中的实用化研究  

Study on Application of Equal Incremental Principle in Energy Conservation Load Distribution of Plant AGC

作　　者：孙耘 丁宁 卢敏[2] 张新胜 孙坚栋 

机构地区：[1]国网浙江省电力公司电力科学研究院,杭州310014 [2]国网浙江省电力公司电力调度控制中心,杭州310007 [3]杭州意能电力技术有限公司,杭州310014

出　　处：《浙江电力》2017年第9期57-61,70,共6页Zhejiang Electric Power

摘　　要：针对等微增率准则在厂级AGC节能负荷分配中的局限性,提出了煤耗率增率策略与等微增率准则相结合的算法。该方法从等微增率原理出发,采用迭代法求解,在发电厂总负荷保持不变的条件下,根据煤耗率微增率的大小调节负荷,科学分配各机组的有功功率,从而使全厂总煤耗量最小。以一个3台机组总装机容量为1 800 MW的火电厂为例,对其经济运行点进行计算,结果表明采用该方法有效解决了等微增率法的弊端,优化分配机组负荷后减少了煤耗率,节能效果明显,是一种实用化的节能负荷分配算法。In view of the limitations of equal incremental principle used in AGC energy conservation load distribution, an algorithm combining coal consumption rate incremental rates with equal incremental principle is proposed in this paper. Based on equal incremental principle, the method uses iterative method for calculation; with the total load of power plant unchanged, the load is adjusted according to incremental rate of coal consumption rate and active power of each unit is scientifically distributed to minimize total coal consumption of the whole power plant. In a thermal power plant comprising three units with its total installed capacity of1800 MW, the economic operation point is calculated. The result shows that this method can effectively handle the disadvantages of equal incremental method; the coal consumption rate is decreased after load allocation optimization, and the energy-saving effect is obvious. The method is a practical algorithm for energy conservation load distribution.

关 键 词：等微增率 厂级AGC 负荷分配 煤耗率增率 

分 类 号：TM62[电气工程—电力系统及自动化]