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Variable-flux voltage-regulating rectifier transformer for electric car

A technology of rectifying transformers and changing magnetic fluxes, applied in the field of transformers, can solve the problem that the DC traction power system cannot be used universally, and achieve the effects of convenient and flexible gear adjustment, easy maintenance and management, and improved reliability.

Pending Publication Date: 2022-03-04
WUJIANG TRANSFORMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The invention provides a variable magnetic flux voltage regulating rectifier transformer for trams, which is used to solve the problem that the current two DC traction power supply systems cannot be used in common

Method used

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  • Variable-flux voltage-regulating rectifier transformer for electric car
  • Variable-flux voltage-regulating rectifier transformer for electric car
  • Variable-flux voltage-regulating rectifier transformer for electric car

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Embodiment Construction

[0042] To facilitate understanding, the present invention is intended to illustrate the invention, and these examples are intended to illustrate the invention.

[0043]In the description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "within", "outside", etc. The orientation or positional relationship indicated is based on the orientation and positional relationship shown in the drawings, is merely intended to describe the present invention and simplified description, rather than indicating or implying that the device or component must have a specific orientation. Construct and operation, so it is not understood to be the limitation of the invention. Moreover, the term "first", "second", "third" is only used to describe the purpose, and cannot be understood as an indication or implies relative importance.

[0044] In the description of the invention, it is to be noted that the term "mount", "connect...

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Abstract

The invention belongs to the technical field of transformers, and particularly relates to a variable-flux voltage-regulating rectifier transformer for an electric car. The three-phase coil is of a double-split four-coil structure, the three-phase coil is divided into a valve side coil and a network side coil corresponding to the valve side coil, and the valve side coil is split into three star-connected first valve side coils and three angle-connected second valve side coils. The network-side coil is split into three first network-side coils in corner joint and three second network-side coils in corner joint, and the first network-side coil and the second network-side coil in each phase of coil are connected in parallel; the first network side coil or the second network side coil is provided with a first gear with the number of turns corresponding to the first voltage of the network valve and a second gear with the number of turns corresponding to the second voltage of the network valve. Gear adjustment is convenient and flexible, valve side output voltage interchange can be conveniently achieved, the gear adjusting requirement of the primary side network voltage tapping range can be met, maintenance and management are convenient, structural change is avoided, the position of an external connecting line of a network side coil is not changed, and field operation maintenance and management are convenient.

Description

Technical field [0001] The present invention belongs to the technical field of transformers, and in particular to a tram-magnetic passage rectifier transformer. Background technique [0002] Environment, climate has become an important topic of today's concern, which is generally regarded as a green transport of zero emissions of pollutants using rail (without tracking) tram. At present, there are two direct-current traction power systems, namely DC 600V systems and DC 750V systems. Due to the limitations of voltage level, the two systems cannot be universal, the overall utilization is low, the selected locomotive The type is also limited. If DC 600V and DC 750V general traction system are possible to achieve mutual switching of two systems is the most ideal solution. [0003] The rectifier used by the rail (without track) is an uncontrollable power diode, and the prior art is to change the voltage level of the DC output system by adjusting the output voltage on the rectifier tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F29/02H01F27/28H01F27/29H01F30/12
CPCH01F29/02H01F29/025H01F27/2828H01F27/29H01F30/12
Inventor 吴其亚张新根刘鹏飞宋志朋
Owner WUJIANG TRANSFORMER
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