基于SSA-GRU大功率多状态PEMFC寿命预测

提出了一种用于最大额定功率为110 kW的质子交换膜燃料电池(proton exchange membrane fuel cell, PEMFC)剩余使用寿命的麻雀搜索算法优化门控循环单元的方法,进行了超过600 h的动态循环耐久试验,以模拟不同路况下车载PEMFC的工作情况。为准确预测大功率PEMFC的剩余使用寿命,需考虑其在不同工作状态下输出电压,将输出电压根据不同功率点进行分类预测。将采样数组经过滤波处理,减少峰值,平滑降噪,然后基于数据驱动的方法以各工作状态下电压数据以及不同的训练集划分作为输入,并预测结果通过选取的评价指标与不同的常见时序回归算法证实此模型的准确性。以数据的60%作为训练集为例,麻雀搜索优化门控循环单元(sparrow search algorithm-gate recurrent unit, SSA-GRU)的预测结果对比时间卷积网络(temporal convolutional network, TCN)其平均绝对百分比误差(mean absolute percentage error, MAPE)在30、50、70、90、110 kW分别降低了0.110...

Life prediction of high-power multi-state PEMFC based on SSA-GRU

This article proposes a sparrow search algorithm for optimizing gating cycle units for the remaining service life of PEMFC with a maximum rated power of 110kW, and conducts 600 hours durability tests under different operating conditions. To accurately predict the remaining service life of high-power PEMFC, it is necessary to consider its output voltage under different operating states, and classify and predict the output voltage according to different power points. Firstly, the sampling array is filtered to reduce peak values and smooth noise reduction. Then, based on data-driven methods, voltage data at different operating states and different training set partitions are used as inputs. The accuracy of this model is confirmed by the selected evaluation indicators and different common time series regression algorithms. At the specified deadline for service life, the minimum prediction error for service life is only 0.733%, and the prediction error under different working conditions is superior to other prediction algorithms.