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Circuit for power distribution with resonant converter

A technology of converters and bidirectional converters, which is applied in the direction of converting equipment with intermediate conversion into AC, DC power input into DC power output, and output power conversion devices, etc.

Active Publication Date: 2018-11-27
广州鼎汉轨道交通装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This known circuit also only enables power flow in one direction through the transformer

Method used

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  • Circuit for power distribution with resonant converter
  • Circuit for power distribution with resonant converter

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Embodiment Construction

[0033] attached figure 1 The circuit 1 shown has a central double-terminal AC power bus 2 . Various converters 3 to 6 are connected to this AC power bus 2 . The converters 4 to 6 of the converters 3 to 6 each have a series resonant circuit 7 connected to the AC power bus 2, wherein all the series resonant circuits 7 have the same resonant capacitance and the same resonant inductance. These resonant capacitances are each represented here by a capacitor 8 . The resonant inductance is the leakage inductance of the transformers 9 to 11 of the converters 4 to 6, which transformers can be identical overall, but can also have different winding ratios.

[0034] Converter 3 is connected to the AC power bus without series resonant tank 7 . Unlike the other converters 4 to 6 , this converter is not designed to take electrical power from the AC power bus 2 , but only to supply the power bus 2 with electrical power. Accordingly, the converter has, at its DC output 12 facing away from t...

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PUM

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Abstract

In a circuit (1) for power distribution having a double-ended AC power bus (2) and at least three converters (3 to 6) connected to said AC power bus, said at least three At least two of the converters (3 to 6) each have a series resonant tank (7) connected to both ends of said AC power bus. at least one of the converters (4 to 6) having a series resonant tank (7) is a bidirectional converter; and all series resonant tanks (7) connected to said power bus have the same resonant capacitance (8) and Same resonant inductance (9 to 11).

Description

technical field [0001] The invention relates to a circuit for power distribution having the features stated in the preamble of independent claim 1 . [0002] In particular, the invention relates to a circuit for power distribution in an electric rail vehicle, whereby an external voltage obtained by means of a pantograph can supply not only a traction drive but also one or more vehicle electrical systems. The vehicle electrical system can be an AC voltage network on the one hand and a DC voltage network on the other hand. A battery can be connected to the DC voltage network as a bridge store, and at least the emergency function of the rail vehicle can be maintained by the battery even without an external voltage source. In fact, relatively frequent interruptions of the external voltage source occur in electric rail vehicles, for example in the region of subnetwork separation points. Background technique [0003] A circuit for power distribution having the features stated in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/28B60L9/00H02M1/00
CPCB60L9/22B60L9/30H02M3/33561B60L2210/30B60L2210/40B60L2200/26H02M3/158H02M3/33576H02M1/0058H02M1/007H02M3/33571H02M3/01H02J4/00H02J3/02H02J1/002Y02T10/72
Inventor J·韦伯G·巴赫曼A·贝格尔
Owner 广州鼎汉轨道交通装备有限公司