Online Control and Power Coordination Method for Multistack Fuel Cells System Based on Optimal Power Allocation
Online Control and Power Coordination Method for Multistack Fuel Cells System Based on Optimal Power Allocation
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DOI：
10.1109/tie.2020.3016240
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发表时间：
2021-09
影响因子：
7.7
通讯作者：
Yu Yan;Qi Li;Wei-rong Chen;Wenqiang Huang;Jiawei Liu;Jiafei Liu
中科院分区：
文献类型：
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作者：
Yu Yan;Qi Li;Wei-rong Chen;Wenqiang Huang;Jiawei Liu;Jiafei Liu
随着燃料电池系统越来越多地应用于大功率应用领域，多堆燃料电池系统的功率协调方法越来越受到人们的关注。以总能耗最小为目标，提出了一种多堆栈现场控制系统的优化协调方法。该方法根据不同参数的电堆能量消耗模型，逐步得到整个多电堆FCS的效率分布函数。通过寻找效率函数的最大值，可以得到每个电堆的最优功率设定点的解析解。此外，该方法还考虑了每个电堆的功率范围，利用上面的解析解，得到的功率分配系数矩阵可以方便地用于在线控制。在RT-LAB平台上的仿真结果表明，与其他在线方法相比，该方法降低了FCS的整体氢耗。100kW水冷电堆的实验结果也验证了该方法的有效性。
As the fuel cell systems (FCS) are increasingly used in high-power application areas, the power coordination method of multistack FCS is attracting ever-growing attention. In order to minimize the total energy consumption, this article proposes an optimal coordination method for multistack FCS. In this method, the efficiency distribution function of the entire multistack FCS can be obtained gradually based on the energy consumption model of each stack with different parameters. By finding the maximum of the efficiency function, the analytical solution of each stack's optimal power setpoint can be obtained. In addition, this method also takes the power range of each stack into consideration, and with the analytical solution above, the obtained power allocation coefficients matrices can be easily used in the online control. The RT-LAB platform simulation results show that, compared with other online methods, the proposed method reduces the overall FCS hydrogen consumption. The results of the experiments using 100-kW water-cooled stacks also verify the effectiveness of the proposed method.