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Intelligent electric phase separation device of alternating current electrified railway

A technology for electrified railways and electric phase separation, applied in power lines, transportation and packaging, vehicle components, etc., can solve problems such as locomotives breaking into phases with electricity, affecting the safety of the traction power supply system and driving order, and losing power in the neutral zone. Achieve the effect of controlling the switching time accurately, avoiding the interference between devices and man-made, and improving the reliability

Active Publication Date: 2015-11-11
BEIJING JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the additional train position detection device must be detected accurately and work reliably, otherwise it will lead to accidents such as power loss in the neutral zone, breakage of the locomotive when it is live, and affect the safety and driving order of the traction power supply system

Method used

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  • Intelligent electric phase separation device of alternating current electrified railway
  • Intelligent electric phase separation device of alternating current electrified railway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] see figure 1 , the AC electrified railway locomotive intelligent electric phase-splitting device of the present invention comprises a first impedance 4, a second impedance 5, a first switch 6, a second switch 7 and a controller 8; after installing a current sensor in the first switch 6, it is connected with the first One impedance 4 is connected in parallel, and a current sensor is installed in the second switch 7 and connected in parallel with the second impedance 5; one end of the first switch 6 is connected to the first power supply arm 1 and a voltage sensor, the first switch 6 is installed on this node The other end of the second switch 7 is connected to the phase separation area 3 and a voltage sensor is installed on this node, and the other end of the second switch 7 is connected to the second power supply arm 2 and a voltage sensor is installed on this node. voltage sensor.

[0021] The voltage and current sensors installed in the above device and the control s...

Embodiment 2

[0023] see figure 2 , the AC electrified railway locomotive intelligent electrical phase splitting device of the present invention includes a first switch 6, a second switch 7, a controller 8, a first transformer 9 and a second transformer 10; wherein, the first transformer 9 includes a first high voltage winding 9a and first low-voltage winding 9b, the second transformer 10 includes a second high-voltage winding 10a and a second low-voltage winding 10b, the first switch 6 is connected to both ends of the first low-voltage winding 9b, and the second switch 7 is connected to the second low-voltage winding 9b. Both ends of the winding 10b are connected; the first high voltage winding 9a is respectively connected to the first power supply arm 1 and the phase splitting area 3, and the second high voltage winding 10a is connected to the second power supply arm 2 and the phase splitting area 3 respectively. The required current sensor and voltage sensor can be installed on the firs...

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Abstract

The invention discloses an intelligent electric phase separation device of an alternating current electrified railway. The intelligent electric phase separation device is composed of a first switch, an impedor connected with the first switch in parallel, a second switch, an impedor connected with the second switch in parallel, a sensor for detecting the current and voltage of the first switch, a sensor for detecting the current and voltage of the second switch and the like, wherein the first switch is connected with a first electric supply arm and a phase separation area, and the second switch is connected with a second electric supply arm and the phase separation area. According to the device, the train pantograph position can be automatically recognized through the voltage information at the two ends of the first and second switches and the current information flowing through the first and second switches, and the first and second switches are automatically turned on or off according to the recognized pantograph position, so that the phase separation area obtains or cuts off electric energy of the electric supply arms. The circuit structures of the switches and the impedors connected with the switches parallel can be replaced with the circuit structures of linked switches at the two ends of a step-down transformer and a low-voltage winding thereof. According to the device, no train position detection mechanism needs to be installed on a track, the structure is simple, and use and maintenance are convenient.

Description

technical field [0001] The invention relates to the field of electrified railway over-phase separation technology, in particular to an intelligent electric phase separation device for AC electrified railway. Background technique [0002] The catenary of electrified railways in many countries, including my country, adopts the power supply mode of segmental commutation, and there is a non-electric catenary between adjacent two-phase power supply catenaries, which is called a phase-splitting area or a neutral area. When the train enters and exits the phase separation area, it is easy to generate overvoltage phenomenon, which sometimes endangers the safety of the train operation; and when running in the phase separation area, it will affect the running speed of the train. [0003] In the existing ground continuous power automatic phase separation schemes, such as the "ground device conversion automatic phase separation scheme" and "column type automatic phase separation scheme",...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60M3/04
Inventor 郑琼林杜玉亮杨晓峰杨景熙游小杰吴命利
Owner BEIJING JIAOTONG UNIV
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