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Low-speed DC extended power supply system and method for long-marshalling trains

A low-voltage DC, power supply system technology, applied in load supply circuits, load balancing in DC networks, locomotives, etc., can solve problems such as the inability to provide low-voltage DC power normally, and achieve the effect of meeting basic operating needs

Active Publication Date: 2019-04-16
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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  • Abstract
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: when the 8-carriage trains in the front and rear half-trains of the long-formation train cannot normally provide low-voltage direct current, in order to ensure the basic operation requirements of the vehicles, the low-voltage direct current of the normal 8-carriage trains is extended to the faulty half-train

Method used

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  • Low-speed DC extended power supply system and method for long-marshalling trains
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  • Low-speed DC extended power supply system and method for long-marshalling trains

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Embodiment Construction

[0032] refer to figure 2 , Power supply circuit: including battery, power supply circuit breaker F29, F30 and F31, the battery BD permanent busbar provides low-voltage direct current for the circuit breaker F29, F30, F31, as long as the battery is not out of power, the above three circuit breakers can always provide the load circuit DC control electricity. The DC power of the battery acts on the corresponding coils of Q29, Q30, and Q31 on the actuator through the air switch and the programmable control hardware DO to provide electric energy for the action of the actuator.

[0033] 2. The central processing unit includes:

[0034] (2.1) Acquisition module: periodically collect train status data in real time, call this module to obtain high-voltage power supply status, charger availability status, battery availability status, battery voltage and power, low-voltage device status such as circuit breaker and relay status.

[0035] (2.2) Operation module: This module is divided i...

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Abstract

A low-speed DC extended power supply system for long-marshalling trains includes a power supply circuit, a central control unit, an actuator, and a display, wherein the central control unit collects and monitors train status, and releases control commands, vehicle status information and guide driver operation information through software operation; the DC extended power supply command outputted bythe central control unit is sent to the programmable device DO through a bus, and the DO uses the command as a trigger condition to control the action of internal contacts. When a fault condition occurs, the low-voltage power supply of the front and rear trains is faulty, and the DC extended power supply mode is adopted to extend the power supply of normal half train to the fault half train, which can meet the basic operation requirements of the whole train, and keep the train running. The control method is reliable and stable.

Description

technical field [0001] The invention relates to an extended power supply technology for EMUs, in particular to a low-voltage DC extended power supply system and method for long marshalled trains based on the train bus system TCMS. Background technique [0002] The construction and development of China's high-speed railways have put forward higher requirements for high-speed EMUs. The long-formed high-speed EMUs provide safe, reliable, high-speed and large-capacity capacity guarantees. Such as figure 1 As shown, the current typical long-marshalling train is composed of front and rear half trains, a total of 16 marshallings, the first half of the train is 8 marshallings, and the second half of the train is also 8 marshallings. Each 8-marshalling train has 4 auxiliary power supply systems inside, and the 4 auxiliary power supply systems are connected in parallel. It supplies power for the AC 380V bus in 8 marshallings. The AC buses of the front and rear half trains are not co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/14H02J7/00B61C17/00
CPCH02J7/0077H02J1/14H02J7/0063B61C17/00
Inventor 吕龙刘国梁马晓明邢学彬刘静
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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