Simulation and Generalized Dynamic Modeling of Metro Pantograph-Catenary System Based on Least Squares Support Vector Machine
A Generalized dynamic modeling method was proposed for pantograph-catenary system based on least squares support machine (LSSVM), and the pantograph-catenary model identification and simulation were carried out. Firstly, the ARX Hammerstein pantograph-catenary model was built after analyzing linear...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Electric Drive for Locomotives
2017-01-01
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| Series: | 机车电传动 |
| Subjects: | |
| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2017.05.110 |
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| Summary: | A Generalized dynamic modeling method was proposed for pantograph-catenary system based on least squares support machine (LSSVM), and the pantograph-catenary model identification and simulation were carried out. Firstly, the ARX Hammerstein pantograph-catenary model was built after analyzing linear and nonlinear partial section of the discrete pantograph-catenary system dynamic model. Secondly the model parameters were identified based on the method of LSSVM. Finally, the pantograph-catenary contact force was modeled and predicted by the actual testing data. The simulation results showed that LSSVM-ARX Hammerstein pantographcatenary model could effectively approximate the dynamic behavior of the contact force in pantograph-catenary system with higher prediction accuracy. The proposed method was effective in train pantograph-catenary system generalized dynamic modeling. |
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| ISSN: | 1000-128X |