考虑电解铝负荷特性的变时段源-荷优化调度  

Variable Time Period Source-load Optimal Scheduling Considering the Load Characteristics of Electrolytic Aluminum

作　　者：李浩 LI Hao(Baise New Aluminum Power Co.,Ltd.,Baise 533000,China)

机构地区：[1]百色新铝电力有限公司,广西百色533000

出　　处：《吉林电力》2025年第2期24-29,共6页Jilin Electric Power

摘　　要：随着电力系统中以风电、光伏为代表的新能源渗透率逐渐提高,仅依靠火电机组的调节能力难以应对新能源出力的随机性。为提高火电机组调节的准确性并挖掘灵活性负荷调节潜力,建立了计及电解铝负荷调节特性的区域电网变时段源-荷日前优化调度模型。首先,建立电解铝负荷调节约束模型,使用高斯混合模型将净负荷按时序特性聚类成3种时段类型。然后,按各时段净负荷波动特点设计源–荷变时段控制规则,以系统总成本最小为目标确定日前调度计划。最后,以某一电解铝负荷占比较大的实际电网为算例验证所提策略能够降低系统运行成本和提高火电机组跟踪净负荷波动的能力。With the increasing proportion of new energy represented by wind power and photovoltaics in the power system,the uncertainty of their output makes it difficult for thermal power units to cope with regulation.In order to improve the accuracy of thermal power unit regulation and explore the potential of flexible load regulation,a regional power grid variable time period source-load day-ahead optimization scheduling model considering the load regulation characteristics of electrolytic aluminum was established.Firstly,the load regulation constraint model of electrolytic aluminum was established.The Gaussian mixture model was used to cluster the net load into three types of time periods according to their temporal characteristics.Then,the source-load variable time period control rules were designed according to the fluctuation characteristics of the net load in each time period,and the day-ahead scheduling plan was determined with the objective of minimizing the total cost of the system.Finally,taking the actual power grid with a certain proportion of electrolytic aluminum load as an example,the proposed strategy was verified to reduce system operating costs and improve the ability of thermal power units to track net load fluctuations.

关 键 词：新能源波动 日前优化调度 变时段控制 高斯混合模型 电解铝负荷 

分 类 号：TM73[电气工程—电力系统及自动化]