Temperature estimation of electric machines using a hybrid model of feed-forward neural and low-order lumped-parameter thermal networks
Temperature estimation of electric machines using a hybrid model of feed-forward neural and low-order lumped-parameter thermal networks
复制标题
使用前馈神经网络和低阶集总参数热网络的混合模型估计电机温度
DOI:
10.1109/iemdc47953.2021.9449548
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
J. Böcker
中科院分区:
文献类型:
--
作者:
E. Gedlu;Oliver Wallscheid;J. Böcker
Accurate temperature estimation of parts of electric machines using a lumped-parameter thermal network (LPTN) requires knowledge of power loss and thermal parameters. However, modeling parameter varying model inputs (power loss for each node and convective thermal conductances) based on physical equations using only measurement signals available during normal drive operation as inputs is not tangible. Hence, a black-box feed-forward neural network (FFNN) based model is introduced as part of the low-order LPTN which is parametrized using empirical measurements dataset using a newly introduced step-by-step system identification instead of a global identification. Then, the proposed hybrid model performance is evaluated using three different unseen cross-validation data sets, which granted an average maximum absolute error of 5 K.
影响因子:
4.9
作者:
W. Kirchgässner;O. Wallscheid;J. Böcker
通讯作者:
J. Böcker