Electric motor train set neutral-section passing control method

A technology of over-phase separation and EMUs, which is applied in the direction of power lines, vehicle components, railway signals and safety, etc., to achieve the effect of ensuring safety and reliability

Active Publication Date: 2019-12-20
CRRC DALIAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] Unloading torque according to time will lead to: when the speed of the locomotive is too high, the locomotive is too close to the strong breaking position, and even the main circuit breaker is disconnected in the phase separation area; when the speed of the locomotive is too low, the speed loss is too large

Method used

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  • Electric motor train set neutral-section passing control method
  • Electric motor train set neutral-section passing control method
  • Electric motor train set neutral-section passing control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Example 1 Obtain phase-splitting area information through monitoring

[0074] Such as figure 2 As shown, when the EMU passes through the phase separation area, it is necessary to obtain the relevant information of the phase separation area in advance, so that the EMU can shed load and disconnect the main circuit breaker in advance. When the monitoring system of the main control car is normal, the microcomputer system of the main control car receives monitoring information from the monitoring system in real time. The received monitoring information includes total weight, number of vehicles, captain, speed, slope, speed limit value, current kilometer mark and Kilometer mark of phase separation area.

[0075] When the monitoring system of the master control vehicle fails, the master control vehicle and the slave control vehicle can receive ground magnetic cylinder information or radio frequency positioning information through their respective phase separation acquisition...

Embodiment 2

[0079] Example 2 Optimal Control of Excessive Phase Speed ​​Load Shedding

[0080] Such as image 3 As shown, after the EMU receives the warning signal, it starts to reduce the load, and the traction load is reduced to zero within the time T1, and then the main circuit breaker is disconnected after the time T2. T1 time is the time when the traction load is reduced to 0; T2 time is the time when the converter blocks the pulse and disconnects the contactor.

[0081] Among them, TI time is the time required to complete the torque load reduction to zero within the torque load reduction distance, which is a dynamic adjustment value. This is because, if the T1 time is specified as a fixed value, it will appear: when the specified T1 time is too short , there will be a certain probability that the main main circuit breaker will be separated too early, and the speed loss of the EMU will be too large; If the T1 time takes an intermediate value, it will still cause speed loss.

[008...

Embodiment 3

[0085] Embodiment 3 bow down mode selection

[0086] Such as Figure 4 As shown, the marshalling form of the EMU is divided into two types: fixed marshalling and flexible marshalling. When the fixed marshalling is used, the distance between the two power cars has been calculated, and there will be no phase-to-phase short-circuit failure when the motor car passes through the phase-separation zone; During marshalling, a phase-to-phase short-circuit fault may occur when the EMU passes through the phase-separation zone.

[0087] In order to solve this problem, the microcomputer system of the main control vehicle judges whether the current formation mode will have a phase-to-phase short circuit fault according to the formation information provided by the monitoring system and the reconnection gateway, and prompts the driver to manually select the bow down mode through the display screen. ; When the monitoring system or the reconnection gateway fails, the current marshalling mode c...

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Abstract

The invention discloses an electric motor train set neutral-section passing control method. A main control vehicle receives monitoring information from a monitoring system in real time through a microcomputer system, transmits the monitoring information to a slave control vehicle and performs neutral-section passing control by combining road condition information and operation information, whereinthe monitoring information comprises neutral-section passing information. According to the technical scheme of the invention, as the main control vehicle receives the monitoring information from themonitoring system in real time through the microcomputer system, transmits the monitoring information to the slave control vehicle and performs neutral-section passing control by combining the road condition information and the operation information, an accurate distance between a motor train set and a forecasting and forced signal can be accurately obtained; and a situation that the motor train set may park in a neutral section when the motor train set is heavy-loaded, the train set is longer or the gradient of the neutral section is larger is avoided.

Description

technical field [0001] The invention relates to the technical field of segmental commutation power supply, in particular to an over-phase-segmented control method for an electric train set. Background technique [0002] At present, the domestic railway high-voltage catenary adopts the segmental commutation power supply mode, and the segmental interval power supply area is called the phase separation area. In the phase-splitting area, the high-voltage catenary usually reduces the network voltage and adjusts the phase. In order to ensure the safety of the high-voltage equipment of the EMU and the high-voltage catenary not to be short-circuited, the EMU needs to disconnect the main circuit breaker when passing through the phase-splitting area, and at the same time Any two pantographs cannot be connected across two high-voltage contact lines in different phase-splitting areas. [0003] A kind of over-phase separation control method in the prior art is that the over-phase separa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60M3/04B61L23/00
CPCB60M3/04B61L23/00
Inventor 李哲刘忠烨周庆强郝凤荣张晓宝吕世伟
Owner CRRC DALIAN CO LTD
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