Power Electronics Controllers and Electric Vehicles

A technology of power electronics and controllers, applied in the direction of electrical components, electrical equipment structural parts, output power conversion devices, etc., can solve the problems of drive motor power output limitation, low cooling efficiency, excessive cooling efficiency, etc., to improve power output and current output capability, improved work reliability, and overall compact structure

Active Publication Date: 2022-04-19
NIO ANHUI HLDG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the power electronic controller adopts a single traditional three-phase full-bridge inverter power module. For example, for the drive motor of a large-power electric vehicle, it is easy to be limited by the maximum allowable current of the power device. For example, the current PEU in the market The peak power does not exceed 200KW, and the peak phase current does not exceed 500A. Therefore, the power output of the drive motor will be limited; moreover, the selection and cost of power devices are difficult to control for a single traditional three-phase full-bridge inverter power module. Excessive power will make it difficult to reduce the volume and cost, and the cooling efficiency is also low

Method used

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  • Power Electronics Controllers and Electric Vehicles
  • Power Electronics Controllers and Electric Vehicles
  • Power Electronics Controllers and Electric Vehicles

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Embodiment Construction

[0050] The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

[0051] In the following description, for clarity and conciseness of description, not all the various components shown in the figures are described in detail. The drawings show a number of components by which those of ordinary skill in the art can fully implement the invention, and the operation of many of the components will be familiar and obvious to those skilled in the art.

[0052] In the following description, for the convenience of explanation, the high direction of the power electronic controller...

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Abstract

The invention provides a power electronic controller and an electric vehicle, belonging to the technical field of AC motor drive control. The power electronic controller of the present invention is used to provide an AC input for an AC motor and control the AC motor, which includes: a first inverter power module assembly and a second inverter power module assembly arranged in parallel; The cooling interlayer between the first inverter power module assembly and the second inverter power module assembly; the cooling channel shared by the first inverter power module assembly and the second inverter power module assembly is arranged in the cooling interlayer . The power electronic controller of the present invention has large power output and current output capabilities, good work reliability, better heat dissipation efficiency, and a compact overall structure.

Description

technical field [0001] The invention belongs to the technical field of AC motor drive control, and relates to a power electronic controller (Power Electronic Unit, PEU) for providing AC input to an AC motor and controlling the AC motor. Background technique [0002] High-power AC motors (such as induction motors or permanent magnet synchronous motors) are widely used in fields such as electric vehicles and used as drive motors. With the continuous popularization of electric vehicles, the market has a high demand for power density, cost, and safety of motor drive systems. Make higher demands. [0003] In the motor drive system of the drive motor, the power electronic controller PEU is used to control and adjust the speed of the drive motor, and the PEU simultaneously inverts the DC high voltage input from the power battery into AC high voltage as the current input of the drive motor. The main functions of PEU include the following two points: [0004] First, as an energy tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/00H05K7/20
CPCH02M7/003H05K7/20845
Inventor 张超王新国黄祥飞
Owner NIO ANHUI HLDG CO LTD
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