A flexible electrical segmentation device and control method thereof
By using the current signal through the flexible electrical segmentation device to determine the train position and control the conduction and shutdown of the bidirectional power electronic switch, the negative impact of electrical phase separation in electrified railways is resolved, the stability and safety of the power supply system are improved, and the cost and power loss are reduced.
CN117984865BActive Publication Date: 2025-09-09ZHUZHOU CSR TIMES ELECTRIC CO LTD
Patent Information
- Application Number
- CN202410165408.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-05
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2044-02-05
Smart Images
Figure CN117984865B_ABST
Abstract
The present invention discloses a flexible electrical segmentation device and control method thereof. The device includes high-voltage switches QF1 and QF2, a bidirectional power electronic switch TF1, anchor segment joints S1 and S2, a current detection unit, and a control and protection unit. One end of S1 is connected to the contact wire of traction substation SS1, one end of S2 is connected to the contact wire of traction substation SS2, and the other end of S1 and the other end of S2 are connected via a first neutral segment. One end of QF1 is connected to the contact wire of SS1, and the other end is connected to one end of TF1. The other end of TF1 is respectively connected to the first neutral segment and one end of QF2, and the other end of QF2 is connected to the contact wire of SS2. The control and protection unit is respectively connected to the current detection unit and switch TF1, and is used to control the conduction and disconnection of switch TF1 according to the current signal to achieve flexible overcurrent segmentation. The present invention has the advantages of simple structure, low cost, low power loss, and high reliability.
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Citation Information
Patent Citations
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