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A multi-phase motor drive system

A multi-phase motor and drive system technology, applied in the control system, AC motor control, electrical components, etc., can solve the problems of large space occupation, troublesome drive system installation, high cost, etc., to save space, reduce costs, and reduce overall volume effect

Active Publication Date: 2022-03-18
CHONGQING ELECTRIC MACHINE FEDERATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In this way, a dedicated space is required to install multiple drive systems, which not only takes up a lot of space, but also costs a lot, and the installation of the drive systems is also troublesome.

Method used

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  • A multi-phase motor drive system
  • A multi-phase motor drive system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 , figure 2 As shown, a multi-phase motor drive system includes a power connection unit, a processing unit, an output unit, an auxiliary unit and a prompt unit.

[0038] The power connection unit is used to connect to the power supply.

[0039] The processing unit is used to process the incoming power supply, including voltage transformation, phase transformation, frequency transformation and inversion;

[0040] The output unit is used to connect the power obtained by the processing unit to the multi-phase motor.

[0041] Wherein, the frequency converter in the processing unit adopts a common DC bus, and besides, the power switching element of the frequency converter is an IGBT.

[0042] An interface prompt image is stored in the auxiliary unit, and the auxiliary unit is also used to input processing information. The processing information includes power supply information and phase-changing motor information. The auxiliary unit is used to match the ...

Embodiment 2

[0053] Different from Embodiment 1, in this embodiment, the output unit includes a plurality of output interfaces, and each output interface has a unique number; each output interface is electrically connected to a plurality of parallel micro-fans, and the micro-fans are used to dissipate heat from the processing unit. ;

[0054] Also includes:

[0055] The collection unit is used to collect the power of each output interface of the unit;

[0056]An analysis unit, the analysis unit is electrically connected to each micro fan respectively; the analysis unit is used to analyze the power of each paired output interface collected according to the serial number of each output interface; if the result of the analysis is that the power of the paired output interface is not Adaptation, the analysis unit starts the corresponding number of micro-fans on the output interface with excessive power according to the analyzed power difference.

[0057] The specific implementation process is...

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PUM

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Abstract

The invention belongs to the field of motor drive technology, and particularly relates to a multi-phase motor drive system, which includes a power connection unit for connecting to a power supply; a processing unit for processing the connected power supply, including voltage conversion, phase conversion and frequency conversion; output The unit is used to connect the power supply obtained by the processing unit to the multi-phase motor; the auxiliary unit stores interface prompt images, and the auxiliary unit is also used to input processing information, which includes power supply information and phase-changing motor information. The unit is used to match the specific wiring interface of the input interface and the output interface according to the input processing information, and display it. In this application, the power supply is processed and directly used to drive the motor, omitting the subsequent integration steps. In this way, the related devices for integrating the processed power supply can be omitted, thereby saving space, reducing cost, and reducing the system cost. overall volume.

Description

technical field [0001] The invention belongs to the technical field of motor drive, and in particular relates to a multi-phase motor drive system. Background technique [0002] Polyphase motors generally refer to all machines that can convert mechanical energy into electrical energy and electrical energy into mechanical energy. [0003] When the multi-phase motor is connected with high-frequency direct current of the same voltage level, the motor will rotate according to the frequency of power-on, that is, the speed of the multi-phase motor can be adjusted through the frequency, so that the multi-phase motor can be used for precision control. At the same time, compared with ordinary motors, since each input phase of multi-phase motors can reach the maximum current of ordinary motors, multi-phase motors can effectively increase the overall power. [0004] However, compared with ordinary motors, since multi-phase motors have multiple input phases, their drive systems are very...

Claims

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Application Information

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IPC IPC(8): H02P27/04H02P27/06H05K7/20G01R31/67
CPCH02P27/04H02P27/06H02M5/00H05K7/20909G09B5/02
Inventor 汪同斌王世洪唐永红
Owner CHONGQING ELECTRIC MACHINE FEDERATION