Application of permanent magnet synchronous direct-drive traction system on Xuzhou metro line 1
Metro trains have the advantages of high starting acceleration, high operating speed, punctuality and large carrying capacity, but energy consumption is also an important issue that needs close attention in metro operation. How to further improve the efficiency of energy conservation for metro train...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Electric Drive for Locomotives
2022-09-01
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| Series: | 机车电传动 |
| Subjects: | |
| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2022.05.014 |
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| Summary: | Metro trains have the advantages of high starting acceleration, high operating speed, punctuality and large carrying capacity, but energy consumption is also an important issue that needs close attention in metro operation. How to further improve the efficiency of energy conservation for metro trains has become a key point in the design of traction system. Compared with traditional asynchronous traction system, the direct-drive permanent magnet traction system with high driving efficiency and good corner-passing performance is one of the directions for the research and development of traction and transmission technology used in rail transit system. Benchmarking the performance indicators of traditional asynchronous traction system, a direct-drive permanent magnet traction system was developed based on the design and model selection of the direct-drive permanent magnet synchronous motor on the train of Xuzhou metro line 1. According to the characteristics of direct-drive permanent magnet traction system, a new full-speed range position sensorless control technique for permanent magnet synchronous motor and an adhesion control technique adapted for direct-drive permanent magnet system were used to realize real-time control of the traction inverter and direct-drive permanent magnet synchronous motor. The on-vehicle test showed that the direct-drive permanent magnet traction system has such advantages as stable motor position identification and fast response, and the traction force is stable and efficient with low adhesion on rail surface. The energy consumption comparison test showed that the direct-drive permanent magnet traction system was 22.7% higher than asynchronous traction system in terms of energy conservation, indicating significant energy saving performance. The direct-drive permanent magnet traction system, which is compact and energy efficient, has positive significance for promoting the further development of the rail transit industry. |
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| ISSN: | 1000-128X |