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Urban rail vehicle air-conditioner inverter power supply

A technology of inverter power supply and urban rail vehicles, which is applied to vehicle components, adjusting electric variables, power supply of electric heating circuit, etc. It can solve the problems of low efficiency of power supply, short service life, heavy additional weight of power supply and large additional weight of vehicles, etc., to achieve Effects of improving reliability and efficiency and reducing additional weight

Inactive Publication Date: 2017-06-20
XIANGTAN HENGCHUANG ELECTRONICS DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, the circuits in passive inverters and choppers were complex and bulky, resulting in a large additional weight of the power supply and vehicle, and the power supply efficiency was low and the service life was short.

Method used

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  • Urban rail vehicle air-conditioner inverter power supply

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Embodiment Construction

[0016] Such as figure 1 figure 1 As shown, the embodiment of the present invention includes a high-voltage DC power supply and a low-voltage DC power supply. The high-voltage DC power supply is a vehicle 1500V DC power supply, and the low-voltage DC power supply is a vehicle 110V DC power supply.

[0017] figure 1 The isolation module in this embodiment includes an isolation transformer-T1; the secondary side of the isolation transformer-T1 is connected to the input terminal of the rectifier bridge-D5; the positive output terminal of the rectifier bridge is connected to the first DC bus, and the negative output terminal is connected to the second DC bus; The first DC bus and the second DC bus are respectively connected to the positive output terminal and the negative output terminal of the boost module.

[0018] figure 1 The boost module includes an energy storage inductor-L3, the input terminal of the energy storage inductor-L3 is connected to the DC110V positive output te...

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Abstract

The invention discloses an urban rail vehicle air-conditioner inverter power supply, which comprises a high-voltage DC power supply and a low-voltage DC power supply, and is characterized in that the high-voltage DC power supply is connected to a three-phase inversion module through a buck chopping module and an isolation module; the three-phase inversion module is connected to a load; and the low-voltage DC power supply is connected to the three-phase inversion module through a boost module. According to the invention, the high-voltage DC power supply and the low-voltage DC power supply of an urban rail vehicle are enabled to act as an air-conditioner inverter power supply after being inverted, the load of an auxiliary power supply and the added weight of the vehicle are effectively reduced, the low-voltage DC power supply provides an inverter power supply for a blower when the high-voltage DC power supply is subjected to loss of power, and the reliability and the utilization efficiency of the circuit are improved while the energy is saved.

Description

technical field [0001] The invention relates to the field of inverter power supplies, in particular to an air conditioner inverter power supply for urban rail vehicles. Background technique [0002] Railway locomotive air conditioner inverter power supply is a three-phase inverter power supply specially provided for locomotive air conditioner. In the past, the circuits in passive inverters and choppers were complex and bulky, resulting in a large additional weight of the power supply and vehicle, and the power supply efficiency was low and the service life was short. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an air conditioner inverter power supply for urban rail vehicles in view of the deficiencies in the prior art. [0004] In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: an inverter power supply for an urban rail vehicle air conditione...

Claims

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Application Information

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IPC IPC(8): H02M7/5387H02M3/335B60L1/12
CPCB60L1/12H02M3/33576H02M7/5387Y02T10/72
Inventor 马浩蒋鄂湘
Owner XIANGTAN HENGCHUANG ELECTRONICS DEVICES
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