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Multifunctional novel efficient power unit and power circuit thereof

A power unit and power circuit technology, which is applied in the direction of irreversible AC power input conversion to DC power output, AC power input conversion to DC power output, DC power input conversion to DC power output, etc., to improve switching frequency, disassembly and assembly Flexibility and the effect of reducing switching loss

Active Publication Date: 2020-03-31
XIAN YONGDIAN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a multi-functional new high-efficiency power unit and its power circuit, which solves the problem of concentrating rectification and bidirectional DC / DC chopping functions on the same power unit

Method used

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  • Multifunctional novel efficient power unit and power circuit thereof
  • Multifunctional novel efficient power unit and power circuit thereof
  • Multifunctional novel efficient power unit and power circuit thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] like figure 1 and figure 2 As shown, a multifunctional new high-efficiency power unit includes a three-phase rectification unit 1 and a bidirectional DC / DC chopper conversion unit 2 with a three-level structure.

[0058]The three-phase rectification unit 1 and the bidirectional DC / DC chopper conversion unit 2 of the three-level structure are fixedly connected to the air duct assembly 3 through an insulating device; the air duct assembly 3 is connected with the three-phase rectification unit 1 and the bidirectional DC The / DC chopping conversion unit 2 is formed in an H shape.

[0059] refer to Image 6 , the three-phase rectification unit 1 includes a rectification radiator 11 , and the bidirectional DC / DC chopper conversion unit 2 includes a chopper radiator 21 .

[0060] The substrate surfaces of the rectifying radiator 11 and the chopper radiator 21 are on the same plane.

[0061] The three-phase rectification unit 1 also includes a rectification radiator 11 , t...

Embodiment 2

[0084] like image 3 and Figure 4 As shown, a multifunctional new high-efficiency power circuit includes a three-phase rectification module and a three-level bidirectional DC / DC chopper conversion module and a control module.

[0085] The three-phase rectification module, the three-phase rectification module, the bidirectional DC / DC chopper conversion module and the control module of the three-level structure are connected by wires.

[0086] The three-phase rectifier module is composed of VD1~VD6 diode modules with a high junction temperature of 150°C. Three double-tube high-junction temperature diodes input U / V / W laminated busbars and DC output DC+ / DC- laminated through three-phase AC. After the busbars are connected, a standard three-phase rectification main circuit is formed to realize power conversion from three-phase AC to DC.

[0087] The bi-directional DC / DC chopper conversion module of the three-level structure includes a fuse F1, which is convenient for protection ...

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Abstract

The invention relates to a multifunctional novel efficient power unit. The novel efficient power unit comprises a three-phase rectification unit and a bidirectional DC / DC chopper conversion unit witha three-level structure, the bidirectional DC / DC chopper conversion unit not only can realize a buck chopper function, but also can realize a boost chopper function, thereby realizing bidirectional flow of energy. The three-phase rectification unit and the bidirectional DC / DC chopper conversion unit with the three-level structure are fixedly connected through an insulating device. Support capacitors are mounted at the tops of the three-phase rectification unit and the bidirectional DC / DC chopper conversion unit with the three-level structure; the whole multifunctional power unit adopts an H-shaped air duct design; the air duct and the power unit are assembled in a left-right structure, the three-phase rectification unit and the bidirectional DC / DC chopper conversion unit of a three-level structure are independent of each other, the two units are fastened and connected through an insulating device, it is guaranteed that the surfaces of heat pipe radiators of the two module units are located on the same plane, the interiors of the whole modules are independent of each other, and the exteriors of the whole modules are integrated. The supporting capacitor is installed above the power unit, the structure is compact, and disassembly and assembly are flexible.

Description

technical field [0001] The invention belongs to the field of traction power supply conversion circuit equipment for diesel locomotives, and in particular relates to a multifunctional new high-efficiency power unit and a power circuit thereof. Background technique [0002] Under the environment that the country vigorously advocates energy saving and emission reduction, the requirements for energy-saving indicators in the field of rail transit and urban rail are getting higher and higher. Therefore, the proportion of traction power source provided by batteries is increasing, and the capacity of batteries is required to be greater. This is also an inevitable trend in the development of traction power in the future. Therefore, energy saving and environmental protection are an important performance index for locomotive shunting. This requires the design of a multifunctional integrated power unit that can not only rectify the three-phase AC power generated by the main generator Fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00H02M3/155H02M7/00H02M7/06H05K7/20
CPCH02M1/00H02M7/003H02M7/06H02M3/155H05K7/2089H05K7/20909
Inventor 陈宏高永军张丹陈彦肖苑伟华王亮亮
Owner XIAN YONGDIAN ELECTRIC