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
孙耘,丁宁,卢敏,张新胜,孙坚栋
SUN Yun,DING Ning,LU Min,ZHANG Xinsheng,SUN Jiandong
摘要(Abstract)：
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(KeyWords)：
等微增率;厂级AGC;负荷分配;煤耗率增率
equal incremental principle;power plant AGC;load distribution;coal consumption incremental rate
基金项目(Foundation):
作者(Author):
孙耘,丁宁,卢敏,张新胜,孙坚栋
SUN Yun,DING Ning,LU Min,ZHANG Xinsheng,SUN Jiandong
DOI: 10.19585/j.zjdl.201709012
参考文献(References)：
- [1]李学斌.火电厂厂级负荷分配的多目标优化和决策研究[J].中国电机工程学报,2008(35):102-107.
- [2]鄢波,齐聪,何钧.基于节能调度的厂级AGC系统设计与应用[J].热力发电,2013,42(7):147-149.
- [3]王友,马晓茜,刘翱.自动发电控制下的火电厂厂级负荷优化分配[J].中国电机工程学报,2008,28(14):103-107.
- [4]余剑锋,顾月平,尚宁.厂级机组经济分配系统的设计及应用[J].浙江电力,2013,32(2):66-69.
- [5]谷炜,吴华华.浙江电网机组出力负荷控制算法的分析[J].浙江电力,2008,27(3):20-22.
- [6]李科,万文军,李军.厂级AGC工程应用关键技术研究[J].发电设备,2014(2):141-145.
- [7]王宏伟,王惠杰,范志愿,等.基于线性规划法和等微增率法的电厂负荷优化分配[J].电力科学与工程,2016,32(1):1-5.
- [8]胡坤.利用等微增率法实现发电厂锅炉负荷的优化分配[J].巢湖学院学报,2016,18(3):82-86.
- [9]李鹏.等微增率准则在机组负荷优化分配中的应用条件[J].南方电网技术,2008,2(5):43-46.
- [10]杭乃善.等微增率方程组的分解、n维求解和协调[J].中国电机工程学报,1994,14(4):65-72.
- [11]李刚,程春田,曾筠,等.改进等微增率算法求解火电负荷分配问题的实用化研究与应用[J].电力系统保护与控制,2012,40(2):72-76.
- [12]李树山,李刚,程春田,等.动态机组组合与等微增率法相结合的火电机组节能负荷分配方法[J].中国电机工程学报,2011,31(7):41-47.
- [13]向德军,陈根军,顾全,等.基于实测煤耗的AGC电厂负荷优化分配[J].电力系统自动化,2013,37(17):125-129.