铅酸蓄电池化成工艺节能优化调度研究

Research on Energy-Saving Optimal Dispatch of Lead-Acid Battery Formation Process

铅酸蓄电池生产企业属于高电耗企业,其化成工艺改良节能潜力巨大。基于铅酸蓄电池生产工艺流程,以化成放电时不回馈上游电网和不额外安装大型储能设备为前提,考虑峰谷电价机制,以电池组串化成周期内总电费最低为目标,计及充放电机转换效率,以及充放电机负载功率约束、总化成功率不反馈电网约束、电池组串切换时间间隔约束和化成调度周期内总切换次数约束等,构建铅酸蓄电池化成优化调度模型。以某铅酸电厂实际运行数据为背景,采用粒子群优化算法进行求解,算例结果显示优化后总化成电耗成本节约5%以上。研究结果对铅酸蓄电池企业实施节能增效改造有重要的指导意义。

Lead-acid battery manufacturers belong to the high power energy consumption industry,and they have great energy-saving potential by improving formation process. Considering the peak-valley electricity pricing mechanism,and aiming at minimizing the total power cost of battery packs during a formation cycle,a mathematic optimal dispatching model of lead-acid battery formation is established based on the lead-acid battery formation process,with the premise that there is no feedback to superior power grid and no additional large-scale energy storage devices installed. The conversion efficiency of charging-discharging device is considered together with the constraints of load power of charging-discharging devices,no feedback to power grid,switching time interval of battery packs,switching frequency during a formation dispatch cycle. Based on the actual operation data of a lead-acid battery factory,the particle swarm optimization algorithm is used to solve the optimal model. Results showthat the total power consumption cost can be reduced by 5% after optimization. The research in this paper can provide reference for lead-acid battery industry in energy-saving reconstruction and efficiency promotion.