适应新型电力系统调控的电解铝负荷可控技术分析与应用

Analysis and Application of Load Control Technology for Electrolytic Aluminum Users in New Power Grid

随着新型电力系统的构建,“网-源-荷”的协调与控制对保障电网运行安全显得极为重要。新能源占比的不断攀升,以风、光为主体的新能源高占比电网,电源侧的调控能力较常规能源机组大幅降低,电网调控灵活性受到严重影响。然后,与“网-源”协调技术形成的相对规范的运管模式相比,目前电网的“网-荷”协调技术则相对空白,特别是在以电解铝为代表的大容量工业负荷不断增长的情况下,大用户用电特性的稳定性,进一步压缩电网调控的灵活性,加剧电网调控风险,负荷侧参与电网调控技术亟待进一步突破。本文针对新型电力系统构建背景下“网-荷”协调控制需求,结合电解铝负荷不断增长对电网的安全影响,基于电解铝大用户的生产工艺,分析了电解铝用户的负荷可控技术及应用情况,为“网-荷”协调技术的突破、“网-源-荷”协调控制水平的提升以及电网与用户的运行安全的保障,提供具体的技术方案与借鉴。

With the construction of new power system,the coordination and control of network-source-load is more and more important to ensure the safety of power grid.With the continuous improvement of new energy power supply capacity,new energy sources dominated by wind power and photovoltaic account for a high proportion of the power grid,and the regulation capacity of the power supply is significantly reduced compared with conventional energy units,which seriously affects the regulation flexibility of the power grid.Then,with the“network-power”coordination technology compared to form relatively standardized operation and management mode,the current grid coordinate technical relatively blank“network-load”,especially in the large capacity represented by electrolytic aluminium industry under the condition of load increasing,the stability of large power characteristics,will be further compressed grid control flexibility,The technology of load side participation in power grid regulation needs further breakthrough.In this paper,according to the demand of“network-load”coordinated control under the background of new power system construction,combined with the influence of electrolytic aluminum load growth on the safety of power grid,based on the production process of electrolytic aluminum large users,the load control technology and application of electrolytic aluminum users are analyzed.For the breakthrough of“network-load”coordination technology,the improvement of“network-power-load”coordination control level,and the guarantee of the operation safety of power grid and users,provide specific technical solutions and reference.