面向风电消纳的铝电解槽电磁场特性研究  

Study on Electric-Magnetic Fields of Aluminum Electrolysis Cell for Wind Power Accommodation

作　　者：何桂雄[1] 熊敏[1] 张红亮[2] 唐艳梅[1] 蒋利民[1] 钟鸣[1] HE Gui-xiong XIONG Min ZHANG Hong-liang TANG Yan-mei JIANG Li-min ZHONG Ming(China Electric Power Research Institute, Beijing 100192, China School of Metallurgy and Environment, Central South University, Changsha 410083, China)

机构地区：[1]中国电力科学研究院,北京100192 [2]中南大学冶金与环境学院,长沙410083

出　　处：《有色金属（冶炼部分）》2016年第11期15-19,共5页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家科技支撑计划项目(2015BAA01B04)

摘　　要：针对铝电解消纳风电过程中物理场将发生非线性变化的现状,建立针对消纳风电的铝电解槽电磁场模型,并开展了消纳电流为设计电流的25%、20%、15%、10%和5%五种情况下的电磁场计算。结果表明,槽电压随着消纳的幅度增加而增加,同时铝液层水平电流密度亦存在相应变化,但电场整体趋势未变,各部分压降均在合理水平;此外,随着消纳风电量的增加,槽内磁场极值与均值都会相应增加,但整体的磁场分布规律未发生大幅波动,电解槽依然可以维持在稳定状态,从而保证在消纳风电过程中,电解槽内磁流体的稳定性,为其平稳消纳提供先天条件。Electric-magnetic model of aluminum electrolysis cell for wind power accommodation was established based on current situation of nonlinear changes in physical fields of aluminum reduction cells after wind power accommodation. Calculation of electric field and magnetic fields was carried out for different accommodation currents including 25%, 20%, 15%, 10% and 5% of design current. The results show that cell voltage and horizontal current density rise with increase of accommodation aptitude, with no change of overall electric field trend. Similar pattern appear in magnetic field. The maximum and average values of Bz rise, while magnetic field trend remains unchanged. Maintainace of cell in a stable MHD state will provide congenital conditions for wind power accommodation.

关 键 词：铝电解 消纳风电 磁场 电场 数值计算 

分 类 号：TF821[冶金工程—有色金属冶金]