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Permanent-magnet brushless motor control system

A permanent magnet brushless motor and control system technology, applied in the direction of single motor speed/torque control, electronic commutator, etc., can solve problems such as changes and influence on the speed regulation accuracy and performance of traditional DC motors, and achieve low noise, The effect of high reliability and high stability

Inactive Publication Date: 2015-06-10
DALIAN CITY SHAHEKOU DISTRICT SMALL MEDIUM & MICRO ENTERPRISES SERVICE CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since traditional DC motors rely on mechanical brushes and commutators for commutation, problems such as commutation sparks, noise, and changing contact resistance caused by the forced contact of mechanical brushes and commutators directly affect traditional DC motors. Speed ​​regulation accuracy and performance

Method used

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  • Permanent-magnet brushless motor control system

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Embodiment Construction

[0010] figure 1 It is a structural schematic diagram of the permanent magnet brushless motor control system of the present invention. The permanent magnet brushless motor control system of the present invention is characterized in that it includes motor 1, rotor position Hall 2, position detection 3, speed calculation 4, speed Controller 5, current controller 6, pulse width modulation and commutation 7, power switch circuit 8, current detection 9;

[0011] The single-chip microcomputer 1 is connected to the alarm module 2, the single-chip microcomputer 1 is connected to the pressure detection module 3, the motor 1 is connected to the rotor position Hall 2, and the rotor position Hall 2 is connected to the position The detection 3 is connected, the position detection 3 is connected with the speed calculation 4, the speed calculation 4 is connected with the speed controller 5, the speed controller 5 is connected with the current controller 6, and the current controller 6 is con...

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Abstract

The invention discloses a permanent-magnet brushless motor control system and belongs to the technical field of motor control. The permanent-magnet brushless motor control system is characterized by comprising a motor (1), a rotor position Hall (2), a position detector (3), a speed calculator (4), a speed controller (5), a current controller (6), a pulse width modulation and inverter (7), a power switch circuit (8) and a current detector (9). Compared with the prior art, the permanent-magnet brushless motor control system is low in noise, high in efficiency, free of excitation, easy to maintain, long in service life, simple in control structure and the like.

Description

technical field [0001] The invention belongs to the technical field of motor control, and more specifically, belongs to a permanent magnet brushless motor control system. Background technique [0002] As an electromechanical energy conversion device, the motor is used in various fields of the national economy and people's daily life. The main types of motors are: DC motors, induction motors, and synchronous motors. Traditional DC motors have been widely used in various drive devices and servo systems for a long time because of their excellent linear mechanical characteristics, wide speed range, good starting performance, and simple control circuits. However, since traditional DC motors rely on mechanical brushes and commutators for commutation, problems such as commutation sparks, noise, and changing contact resistance caused by the forced contact of mechanical brushes and commutators directly affect traditional DC motors. Speed ​​regulation accuracy and performance. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/16H02P6/08
CPCH02P6/08
Inventor 秦宏佳
Owner DALIAN CITY SHAHEKOU DISTRICT SMALL MEDIUM & MICRO ENTERPRISES SERVICE CENT
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