An AC traction power supply system

A traction power supply system and a power supply system technology, applied in the field of rail transit, can solve problems such as poor economic benefits, inability to consume new energy power generation resources nearby, and power grid losses.

Inactive Publication Date: 2019-01-18
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Quite a lot of new energy power generation resources cannot be consumed nearby
The railway power supply takes energy from the large power grid, which leads to loss of the power grid and poor economic benefits

Method used

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  • An AC traction power supply system
  • An AC traction power supply system

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] The embodiment of the present invention discloses an AC traction power supply system, see figure 1 and figure 2 As shown, the system includes: an interconnected power supply arm 11, a traction transformer 12, and a fusion device 13, which are connected between the fusion device 13 and the new energy power supply system 15, and are used to transmit the electric energy of the new energy power supply system 15 to the fusion device 13 of the first DC / DC c...

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Abstract

Disclosed is an AC traction power supply system comprising an interconnected power supply arm, a traction transformer and an accommodation device, characterized in that a first DC / DC converter is connected between the accommodation device and a new energy supply system for transmitting electric energy of the new energy supply system to the accommodation device. A new energy supply system of the present application inputs electrical energy to an accommodation device through a first DC / DC converter, the accommodation device then transfers the electric energy to the power supply arm through the traction transformer, The power supply arm transfers the electric energy to the train, thereby completing the power supply of the new energy supply system to the traction power supply system. In summary, DC grid connection is adopted to save DC / AC converters, filters, circuit breakers and other devices, which reduces the transmission and distribution links between generation and power consumption,improves the overall efficiency of the power system, and reduces the cost.

Description

technical field [0001] The invention relates to the field of rail transportation, in particular to an AC traction power supply system. Background technique [0002] In the prior art, the AC traction power supply system generally obtains energy from the high-voltage power grid. The wind resources and photovoltaic resources that may exist along the railway line need to be connected to the large power grid after power generation, and then transmitted to the traction power supply system through the distribution network for use. Quite a lot of new energy power generation resources cannot be consumed nearby. The railway power supply takes energy from the large power grid, which leads to the loss of the power grid and poor economic benefits. The present invention hopes to combine the new energy along the railway and the heavy load of the railway as a whole to build a new traction power supply system. Contents of the invention [0003] In view of this, the purpose of the present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/38
CPCH02J3/382H02J3/00
Inventor 张志学何多昌李红波罗文广周方圆
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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