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Power system suitable for through-type in-phase power supply device

A technology of power system and in-phase power supply, which is applied in the direction of output power conversion device, conversion of AC power input into AC power output, conversion of AC power input into DC power output, etc., and can solve problems such as difficulty in meeting the electrical index requirements of the power supply department

Inactive Publication Date: 2021-03-19
XUJI GRP +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] As my country's high-speed railway and heavy-duty railway operation increase the demand for power supply grid capacity, the impact on grid imbalance also increases, posing a great challenge to the current traction power supply system
In this case, if the traction substation adopts the current two-phase power supply mode and the filter mode of two-phase reactive power compensation, it will be difficult to meet the requirements of the power supply department for electrical indicators.

Method used

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  • Power system suitable for through-type in-phase power supply device
  • Power system suitable for through-type in-phase power supply device
  • Power system suitable for through-type in-phase power supply device

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0031] The invention provides a power system suitable for a through-type in-phase power supply device. The power system includes an H-bridge power module, a discharge resistor, a bypass switch, a vacuum contactor, an energy harvesting module and a control module.

[0032] Specifically, the power system topology adopts an H-bridge structure, and the power system includes two H-bridge power modules, and the H-bridge power ...

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Abstract

The invention discloses a power system suitable for a through type in-phase power supply device. The power system comprises an H-bridge power module, a discharge resistor, a bypass switch, a vacuum contactor, an energy taking module and a control module, wherein the H-bridge power module comprises a bus support capacitor, a radiator and a plurality of IGBTs; the discharge resistor is used for discharging residual voltage of the bus support capacitor when the power system does not work; the bypass switch is used for enabling the power system to quit operation when the power system detects a fault; the vacuum contactor is used for automatically closing the vacuum contactor to realize grid-connected operation when the power system meets the operation condition; the energy taking module is used for supplying power to the control module; the control module comprises a driving circuit board and a protection circuit board. Removing and inputting of the power system are achieved through instructions sent by external communication, and the power system has the advantages of being small in size, low in stray inductance of a main circuit and high in power density.

Description

technical field [0001] The invention relates to the technical field of power supply, in particular to a power system suitable for a through-type in-phase power supply device. Background technique [0002] As my country's high-speed railway and heavy-duty railway operation increase the capacity demand of the power supply grid, the impact on the imbalance of the power grid will also increase, which poses a great challenge to the current traction power supply system. In this case, if the traction substation adopts the current two-phase power supply mode and the filter mode of two-phase reactive power compensation, it will be difficult to meet the requirements of the power supply department for electrical indicators. [0003] According to the needs of the traction system, the same-phase power supply technology emerges as the times require. The same-phase power supply technology means that all the traction arms on the section are powered by the same phase voltage, and the throug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00H02M7/00H02M5/458H05K7/20
CPCH02M1/00H02M5/4585H02M7/003H05K7/20927
Inventor 翟超刘刚孙健祁招石鹏许恩泽张文锦贾雪
Owner XUJI GRP
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