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dsp based brushless dc motor control device

A brushed DC motor and control device technology, applied in AC motor control, single motor speed/torque control, control system and other directions, can solve problems such as poor anti-interference performance and unstable system operation, and achieve stable system operation and anti- Good interference performance

Inactive Publication Date: 2011-12-21
BEIJING INFORMATION SCI & TECH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a DSP-based brushless DC motor control device to overcome the defect that the control part of the brushless DC motor in the prior art has poor anti-interference performance, which leads to unstable system operation

Method used

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  • dsp based brushless dc motor control device
  • dsp based brushless dc motor control device
  • dsp based brushless dc motor control device

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Embodiment Construction

[0038] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0039] The structure of the brushless DC motor control device based on DSP of the present invention is as figure 1 As shown, it includes position sensor, DSP controller, drive and inverter circuit, keyboard circuit, digital tube display circuit, detection circuit and isolation circuit. Wherein, the DSP controller is respectively connected with the position sensor, the isolation circuit drive and inverter circuit, the keyboard circuit, the nixie tube display circuit and the detection circuit, and the drive and inverter circuit are respectively connected with the isolation circuit and the brushless DC motor connected, and the brushless DC motor is respectively connected wi...

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Abstract

The invention discloses a DSP-based brushless DC motor control device, comprising: a position sensor, installed on the stator of the brushless DC motor, used to detect the position information of the rotor of the motor during operation, and send the position information to the DSP control device; DSP controller, used to obtain the real-time speed of the motor according to the adjacent position information sent by the position sensor and the time to obtain the adjacent position information; and compare the real-time speed with the preset target speed, and according to the comparison result Send control signals to the drive and inverter circuit; the drive and inverter circuit is used to control the speed and direction of rotation of the motor according to the control signal of the DSP controller. The DSP-based brushless DC motor control device of the present invention utilizes the high-performance data processing capability and rich peripheral interfaces of the DSP controller to realize a set of DSP-based rotational speed closed-loop control system suitable for the brushless DC motor. The device has good anti-interference performance and the system works stably.

Description

technical field [0001] The invention relates to the technical field of motor control, in particular to a DSP-based brushless DC motor control device. Background technique [0002] Compared with AC motors, DC motors have the advantages of high operating efficiency and good speed regulation performance. However, the traditional DC motor adopts a brush-commutator structure and commutates mechanically, which inevitably has fatal weaknesses such as noise, sparks, radio interference, and short life. In addition, it has disadvantages such as high manufacturing cost and difficult maintenance. This greatly limits its scope of application. The brushless DC motor is a new type of motor developed by removing the mechanical brush on the basis of maintaining the excellent characteristics of the traditional DC motor. It is a typical mechatronic product. It is mainly composed of three parts: the motor body, the position sensor and the electronic switch circuit. Brushless DC motor control...

Claims

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Application Information

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IPC IPC(8): H02P6/08H02P27/06H02P6/06
Inventor 艾红张仰森成钊松
Owner BEIJING INFORMATION SCI & TECH UNIV
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