Co-phase power supply device and power supply method for rigid catenary of subway

Abstract

The invention discloses a co-phase power supply device for a rigid catenary of a subway, which relates to the related technical field of urban rail transit. The device comprises a base, a pantograph mounting seat, a pantograph arm, a pantograph upper frame, a main power supply transmission line and a main control unit. The top of the pantograph upper frame is provided with a carbon slider mounting structure. An automatic arc blowing mechanism is arranged on the top of the pantograph arm, and multiple buffering mechanisms are arranged between the base and the pantograph mounting seat. The invention further discloses a power supply method of the co-phase power supply device for the subway rigid catenary. The power supply method comprises the steps of A, pantograph-catenary contact, B, contact arc extinguishing, C, pantograph-catenary separation and D, separation arc extinguishing. Through the arrangement of the carbon slider mounting mechanism, the problem that the replacement process of a carbon slider of an existing subway rigid catenary co-phase power supply device is tedious is solved, and through the arrangement of the multiple buffer mechanisms, the problem that the carbon slider and the catenary are prone to being damaged by electric arcs of the existing subway rigid catenary co-phase power supply device is solved.

Description

technical field [0001] The invention relates to the related technical field of urban rail transit, in particular to a metro rigid catenary in-phase power supply device and a power supply method thereof. Background technique [0002] Existing urban subway electric traction systems usually use single-phase power supply to supply power to the locomotives. When the locomotives run to the commutation area, they need to put away the pantograph to avoid short circuits caused by the locomotives touching circuits with different phase sequences. When the pantograph is separated from the rigid catenary or is about to be in contact, the excessive voltage between the pantograph and the catenary will break down the air medium and generate an arc. If the arc exists for a long time, it will damage the rigid catenary or pantograph. After the group runs for a period of time, the operator needs to replace the carbon skateboard. The existing carbon skateboard is fixed by using multiple sets of ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a subway rigid catenary in-phase power supply device and its power supply method, which solves the cumbersome replacement process of the carbon slide plate of the existing subway rigid catenary in-phase power supply device, and the arc is easy to damage the carbon slide plate and contact. net problem

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