联网型高耗能电解铝工业电网源荷协调平抑风电功率波动控制策略  

Source-load coordinated control strategy for smoothing wind power fluctuation in grid-connected high energy consuming electrolytic aluminum industrial power grid

作　　者：丁鑫[1] 徐箭[1] 孙元章[1] 廖思阳[1] DING Xin;XU Jian;SUN Yuanzhang;LIAO Siyang(School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China)

机构地区：[1]武汉大学电气与自动化学院,湖北武汉430072

出　　处：《电力自动化设备》2022年第11期47-55,共9页Electric Power Automation Equipment

基　　金：国家自然科学基金联合基金资助项目(U2066601)。

摘　　要：对于含有大规模新能源接入的联网型高耗能工业电网,新能源功率波动势必产生联络线功率波动以及额外备用容量费用,不利于工业电网经济运行。通过对工业电网内部火电机组与电解铝负荷联合控制进行建模,提出源荷协调平抑风电功率控制策略。基于模型预测控制方法,将电解铝负荷和火电机组调节范围以及响应速率作为约束条件,以平抑风电功率波动为控制目标,优化电解铝负荷和火电机组的有功功率调节量,减少由风电功率波动引起的联络线备用容量。以云南文山地区某个工业电网为例进行仿真,结果表明所提的源荷协调控制策略可以有效实现对工业电网内部风电功率波动的平抑,限制与大电网联络线上的有功功率交换。For the grid-connected high energy consuming industrial power grid accessed with large-scale new energy,the fluctuation of new energy power will lead to tie-line power fluctuation and extra reserve capacity charge,which is not economical for the industrial power grid operation.By modeling the coordinated control method of the thermal generators and the electrolytic aluminum loads in industrial power grid,a source-load coordinated control strategy is proposed to smooth wind power fluctuation.Based on the model predictive control method,taking the regulating range and response rate of the thermal power units and electrolytic aluminum loads as constraints,and the wind power fluctuation smoothing as the control objective,the active power regulation of thermal power units and the power consumption of electrolytic aluminum loads are optimized to decrease the reserve power of tie-line caused by the wind power fluctuation.Taking a grid-connected industrial power grid in Wenshan,Yunnan as an example,the simulative results verify the effectiveness of the proposed source-load coordinated control strategy in smoothing wind power fluctuation and restricting active power exchange of tie-line between industrial power grid and utility power grid.

关 键 词：新能源消纳 平抑功率波动 电解铝负荷 模型预测控制 协调优化控制 风电 

分 类 号：TM73[电气工程—电力系统及自动化]