Optimization of the Network Control Strategy for ATP Auto-passing Neutral Section in the CRH2 EMU
At present, the ATP auto-passing neutral section control strategy defect in the operation process of the CRH2 EMU has caused the traction blocking, and it introduces great risks to train operation safety. In this paper, an improved network control strategy was proposed to solve this problem. The mai...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Control and Information Technology
2019-01-01
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| Series: | Kongzhi Yu Xinxi Jishu |
| Subjects: | |
| Online Access: | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2096-5427.2019.05.012 |
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| Summary: | At present, the ATP auto-passing neutral section control strategy defect in the operation process of the CRH2 EMU has caused the traction blocking, and it introduces great risks to train operation safety. In this paper, an improved network control strategy was proposed to solve this problem. The main improvement point is to change the strategy of the length calculation so that the length calculation of the phase separation interval of the far group is no longer determined according to the effective number of trains when the short group is rejoined. By increasing the filtering mechanism of interference and non-master over-phase signal, the proposed mechanism avoids illegal execution of excessive phase control. When short groups rejoin the operational organization form, if the actual phase separation interval length is less than the threshold (200 m), the phase separation control cannot be performed, 200 m accumulation is performed when the falling edge of the split phase signal is used. Through the combination optimization strategy, the proposed scheme solves the applicability of different operating conditions, improves the stability and reliability of the network control system, and guarantees the safety of train operation. Finally, the effectiveness of the strategy is verified by the test bench and on-site loading. At the same time, various abnormal operating scenarios are simulated to further verify its stability and robustness. |
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| ISSN: | 2096-5427 |