针对全钒液流电池(VFB)储能系统在传统恒功率充放电控制下存在的初始电流冲击大和能量利用率低等问题,文中提出一种基于功率自适应的充放电控制策略。该策略通过自适应功率调节机制,动态优化充放电功率轨迹:在充放电初期有效抑制电流冲击,延长电池寿命;在末期则动态调节功率变化速率,使端电压逼近截止电压,拓宽荷电状态(SOC)可用区间,实现深度充放电,避免因触及电压限制而降低利用率。为全面反映电池运行特性,建立了涵盖电气、电化学、流体力学及温度场的VFB多物理场耦合模型,并给出了功率自适应控制策略的控制框图和算法 ...
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