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A network control method for bus contactor

A technology of network control and contactor, which is applied in the control system of the operation center, electric vehicles, electrical devices, etc., can solve problems such as potential safety hazards, avoid accidents, ensure safety and reliability of results, and avoid safety hazards. hidden effect

Active Publication Date: 2016-04-20
CRRC NANJING PUZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing control method, it is generally necessary to consider whether there is a BHB cut command, whether the workshop power supply is supplied, and a certain speed. However, when the high-speed circuit breaker contact fails or the remote input and output module fails, the bus contactor may still be closed. , bringing certain security risks

Method used

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  • A network control method for bus contactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The device in this embodiment includes a train network vehicle control unit (VCU for short), a remote input / output module (RIOM for short), a traction unit (VVVF for short), and a high voltage bus high speed breaker (BHB for short). ) and train speed information, and send instruction information to the bus contactor according to the above state information; the remote input and output module is used to transmit the instruction information sent by the train network vehicle control unit to the bus contactor, and the feedback of the bus contactor The status information is sent to the train network vehicle control unit; the bus contactor is used to execute the instructions of the train network vehicle control unit, and sends the bus contactor status information obtained after executing the instructions to the train network vehicle control unit.

[0041]The method of this embodiment includes the following steps: 1. Set the state Y of the remote input and output module to be 0...

Embodiment 2

[0043] The vehicle control unit of the train network adjusts the state of the remote input and output module, and judges the state of the remote input and output module according to formula (1) (Y=0). When Y=1, it means that the remote input and output module is faulty. At this time The internal program of the remote I / O module forcibly opens the bus contactor.

Embodiment 3

[0045] The train network vehicle control unit adjusts the number n of traction units with high-voltage signals, and judges the number of traction units with high-voltage signals according to (2) formula (n≥1). When n=0, it means that none of the traction units has high-voltage signals. The train network vehicle control unit resets the command to close the bus contactor, that is, the train network vehicle control unit sends the command to cancel the closing of the bus contactor to the remote input and output module.

[0046] After the vehicle control unit of the train network sends the command to cancel the closure of the bus contactor to the remote input and output module, the remote input and output module controls the bus contactor to disconnect. After the bus contactor is disconnected for 3 seconds, the vehicle control unit of the train network adjusts the status of the bus contactor, and judges the status of the bus contactor according to formula (8) (BLB=0), where the disc...

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Abstract

The invention relates to a network control method for a BLB (Bus Line Contactor). The method comprises the following steps: when the state of an RIOM (Remote Input / Output Module) is normal, judging the number of HSCBs (High Speed Circuit Breakers) with high-voltage signals; when at least one traction unit has the high-voltage signal, sending a detection signal to the RIOM through a VCU (Train Network Vehicle Control Unit); when a BHB (High Voltage Bus High Speed Breaker) removal instruction does not exist and the current running speed of a train is higher than 2km / h, judging whether the train is in an inter-train power mode or a no-inter-train power mode through the VCU; if the train is in the no-inter-train power mode, judging whether the BHB is in a closed state; when the BHB is in the closed state, transmitting a BLB closing instruction to the RIOM through the VCU; after the RIOM controls the BLB to be closed for 3s, judging the state of the BLB through the VCU; when the BLB is in the closed state, finishing operation, and otherwise, determining the closing failure of the BLB. According to the method, the BLB can be safely closed and opened, and potential safety hazards caused by closing and opening of the BLB when contacts of the HSCBs fail or the RIOM fails are further avoided.

Description

technical field [0001] The invention relates to a method for controlling a bus contactor through a train network system, in particular to a method for controlling a bus contactor network suitable for subway trains. Background technique [0002] Busline contactor (BLB for short) plays an important role in the subway vehicles powered by the third rail. It can not only provide high voltage for the vehicles in the power outage area, but also provide safety protection during train maintenance. Therefore, the control of BLB is particularly important . As far as the applicant knows, ZL201220590956.8 discloses a control circuit for a bus tie circuit breaker switch, which is used to automatically switch the power supply bus using an AC contactor. In the existing control method, it is generally necessary to consider whether there is a BHB cut command, whether the workshop power supply is supplied, and a certain speed. However, when the high-speed circuit breaker contact fails or the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L3/00B61L27/00
Inventor 刘莉陈诚张军贤黄涛夏益韬吕红强陈美霞廉雪莹郝凯周擎齐玉玲
Owner CRRC NANJING PUZHEN CO LTD