Motor train unit line-side circuit and control method thereof

An EMU and circuit technology, applied in electric vehicles, circuit devices, electrical components, etc., can solve the problems of complex train wiring, reduced operation reliability, loss, etc., and achieve considerable economic benefits, simple circuit types, and improved transportation capacity. Effect

Active Publication Date: 2012-04-25
ZHUZHOU ELECTRIC LOCOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] from figure 1 It can be seen that since the two pantographs are directly connected by high-voltage cables, in the event of a main circuit breaker failure, the train will lose half of its power, which will lead to poor redundancy of the train and reduced operational reliability ; Due to the use of an isolating switch, the symmetry of the circuit

Method used

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  • Motor train unit line-side circuit and control method thereof
  • Motor train unit line-side circuit and control method thereof
  • Motor train unit line-side circuit and control method thereof

Examples

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Embodiment Construction

[0015] Such as figure 2 As shown, an EMU according to an embodiment of the present invention has two identical power units, and the two units are connected by a high-voltage cable. The primary side of the EMU main transformer 13 is energized through the catenary 1, the pantograph 2 or 10, and the vacuum circuit breaker 4 or 9. The traction winding on the 13th side of the main transformer supplies power to the main converter 12, and the main converter 12 supplies power to the traction motor 14 through AC-DC-AC conversion, thereby realizing traction and electric braking of the entire train. At the same time, the output end of the main transformer 13 is connected to the grounding device 16 to realize the working grounding of the train.

[0016] Under normal operating conditions, the train only raises one pantograph (generally the rear bow relative to the running direction), and only closes the vacuum circuit breaker directly connected to this pantograph, and simultaneously send...

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PUM

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Abstract

The invention discloses a motor train unit line-side circuit and a control method thereof. The motor train unit line-side circuit comprises two motive power units in the same structure, wherein the two motive power units are connected through an isolation switch branch circuit, the isolation switch branch circuit is formed by serially connecting two isolation switches, and both ends of the isolation switch branch circuit are respectively connected to a position between a primary side current transformer and a vacuum circuit breaker of the two motive power units. The line-side circuit is a basically symmetrical circuit, the circuit type is simple, the equipment arrangement and the wire distribution are simple, the circuit control is easy to realize, and in addition, the train operation reliability is very high.

Description

technical field [0001] The invention relates to a high-voltage network side circuit and a control method, in particular to a high-voltage grid side circuit and a control method thereof. Background technique [0002] The current receiving circuit on the primary side of the existing EMU is basically composed of electrical components such as pantograph, vacuum circuit breaker, grounding switch, lightning arrester, isolating switch, etc. Different combination methods and different control methods make their functions different, and then the reliability of the vehicle's current reception is different. [0003] Due to the different combinations of electrical components of the primary side current receiving circuit of the EMU, figure 1 A schematic diagram of a possible EMU side circuit structure is given. The EMU side circuit includes two power units with the same structure, and each power unit includes a pantograph, a high-voltage voltage transformer, a vacuum circuit breaker, a ...

Claims

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Application Information

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IPC IPC(8): B60L9/00H02J17/00H02J50/00
Inventor 陈平安林文君周安德李耘茏陈爱军李丰收
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO
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