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High-speed torque ripple restraining device based on direct current bus voltage adjustment and restraining method thereof

A DC bus voltage and pulsation suppression technology, applied in torque pulsation control and other directions, can solve the problems of motor jitter, limit the application range of the motor, etc., and achieve the effect of suppressing torque pulsation and simple structure

Inactive Publication Date: 2015-03-11
JIANGSU UNIV OF SCI & TECH
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  • Abstract
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Problems solved by technology

[0002] Brushless DC motor has the advantages of small size, good performance, simple structure, high reliability, and large output torque. The scope of application of this type of motor

Method used

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  • High-speed torque ripple restraining device based on direct current bus voltage adjustment and restraining method thereof
  • High-speed torque ripple restraining device based on direct current bus voltage adjustment and restraining method thereof
  • High-speed torque ripple restraining device based on direct current bus voltage adjustment and restraining method thereof

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Embodiment Construction

[0020] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, the present invention provides a high-speed torque ripple suppression device based on DC bus voltage regulation, which is used for figure 1 The brushless DC motor in the control device is controlled, and the suppressing device includes a Boost converter, a voltage-type inverter and a controller (a single-chip microcomputer is used in this embodiment), wherein, the output end of the voltage-type inverter is connected to the brushless DC motor The three-phase winding of the controller, the input end of the controller is connected to the Hall signal output end of the brushless DC motor, and the output end of the controller is respectively connected to the voltage type inverter and the Boost converter to control its working state; The output end of the Boost converter is connected to the input end of the volta...

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Abstract

The invention discloses high-speed torque ripple restraining device based on direct current bus voltage adjustment. The high-speed torque ripple restraining device comprises a Boost converter, a voltage type inverter and a controller, wherein the output end of the voltage type inverter is connected with a three-phase winding of a brushless direct current motor; the input end of the controller is connected with a Hall signal output end of the brushless direct current motor; the output end of the controller is connected with each of the voltage type inverter and the Boost converter and is used for controlling working states of the voltage type inverter and the Boost converter; the output end of the Boost converter is connected with the input end of the voltage type inverter. According to the high-speed torque ripple restraining device, torque ripple can be restrained by a mode of adjusting direct current bus voltage. The invention also discloses a restraining method for the high-speed torque ripple restraining device based on the direct current bus voltage adjustment.

Description

technical field [0001] The invention relates to an electronic control method and a control device, in particular to a device and method for suppressing high-speed torque ripple of a brushless DC motor based on DC bus voltage regulation. Background technique [0002] Brushless DC motor has the advantages of small size, good performance, simple structure, high reliability, and large output torque. The scope of application of this type of motor. At present, most brushless DC motors use the principle of constant DC to realize the operation of the motor, which brings about the generation of torque ripple when the brushless DC motor runs at high speed. The size of the input voltage can play a very good role, and this case arises from it. Contents of the invention [0003] The purpose of the present invention is to provide a high-speed torque ripple suppression device and method based on DC bus voltage regulation, which can suppress torque ripple by adjusting the DC bus voltage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/10
CPCH02P6/10
Inventor 魏海峰张懿
Owner JIANGSU UNIV OF SCI & TECH
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