WebJan 4, 2024 · With the increasing number of electric vehicles, V2G (vehicle to grid) charging piles which can realize the two-way flow of vehicle and electricity have been put into the … WebApr 26, 2024 · Experiments show that the SSA-SVM diagnostic model effectively improves the accuracy of wind turbine fault diagnosis compared with the GS-SVM, GA-SVM and PSO-SVM models and has fast convergence speed and strong optimization ability. Moreover, the SSA-SVM diagnostic model can be used to diagnose faults in practical …
Rolling mill bearings fault diagnosis based on improved …
WebDec 1, 2024 · The methodologies and features extraction techniques, including a two-sample based algorithm, WPD, EWP, and SVM, are implemented, which is discussed in Section 3. The simulation of the three-phase, three-level inverter, and fault diagnosis system is explained in Section 4. The results obtained from the simulated fault … Since an SVM is essentially a binary classifier, a one-layer SVM model can only classify two kinds of operation conditions of HVCBs. For the classification of a normal condition mechanism fault and four types of operating mechanism faults, a four-layer SVM classifier shown in Figure 6is constituted as the fault … See more Based on statistical theory, a novel learning algorithm named SVM was proposed by Vapnik and co-authors in the late 1990s [30]. The … See more The kernel parameter δ and error penalty c are significant for the classification accuracy of the SVM model. Thus, they are predetermined by the PSO algorithm in the study. The basic idea of the PSO algorithm is that the … See more in what modern day country was st nick born
An Improved PSO Algorithm and Its Application on Fault Diagnosis
WebFeb 28, 2024 · 图6 PSO-SVM 适应度曲线Fig.6 PSO-SVM fitness curve 利用测试数据进行故障诊断,得到的结果如图7。 从图7中可以看出利用原始故障特征集进行验证时有大部分正常状态下的数据被识别成了不对中或不平衡,模型对正常状态下的故障特征数据识别表现不好,不能很好的 ... WebMar 1, 2024 · In 2024, Ma et al. performed fault classification with SVM using three gas ratios from 118 DGA data from the IEC TC 10 dataset and used Particle Swarm … WebThe fault diagnosis process based on EMD energy feature of vibration signal and PSO-SVM was shown in Fig. 9 The fault diagnosis results are shown in Table 5. It can be … in what molecule are genes located quizlet