An inspection circuit for AC and DC power supply and its control method
In view of the problem that the train need be switched in AC and DC power supply system, an inspection circuit and control method were designed to inspect the AC and DC power supply system. The scheme could accurately calculate the real grid voltage to judge the corresponding system mode under the c...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Electric Drive for Locomotives
2022-01-01
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| Series: | 机车电传动 |
| Subjects: | |
| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2022.01.024 |
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| Summary: | In view of the problem that the train need be switched in AC and DC power supply system, an inspection circuit and control method were designed to inspect the AC and DC power supply system. The scheme could accurately calculate the real grid voltage to judge the corresponding system mode under the conditions of the train such as traction, braking, idling and passing the phase separation, and control the traction system of train to work in a matching state. When the abnormality occurs, it could automatically inspect and protect. It was proved that the scheme could effectively improve the safety and reliability of trains through the application and test of existing trains in AC 25 kV and DC 3 000 V power supply system. |
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| ISSN: | 1000-128X |