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  [전기] Motion Control Motor Types
  글쓴이 : 스테파노   고유ID : Stefano     날짜 : 18-08-09 10:08     조회 : 125    
<동력용이 아니고 위치제어, 각도제어, 회전수제어 등의 제어용으로 사용하는 모터의 종류>
 
 
 

AC Brushless Motors

AC brushless motors are some of the most popular in motion control. They use induction of a rotating magnetic field, generated in the stator, to turn both the stator and rotor at a synchronous rate. They rely on permanent electromagnets to operate.

DC Brushed Motors

In a DC brushed motor, brush orientation on the stator determines current flow. In some models, the brush’s orientation relative to the rotor bar segments is decisive instead. The commutator is especially important in any DC brushed motor design.

DC Brushless Motors

DC brushless motors were first developed to achieve higher performance in a smaller space than DC brushed motors, and they are smaller than comparable AC models. An embedded controller is used to facilitate operation in the absence of a slip ring or commutator.

Direct Drive

Direct drive is a high-efficiency, low-wear technology implementation that replaces conventional servo motors and their accompanying transmissions. In addition to being far easier to maintain over a longer period of time, these motors accelerate more quickly.

Linear Motors

These electric motors feature an unrolled stator and motor, producing linear force along the device’s length. In contrast to cylindrical models, they have a flat active section featuring two ends. They are typically faster and more accurate than rotatory motors.

Servo Motors

A servo motor is any motor coupled with a feedback sensor to facilitate positioning; thus, servo motors are the backbone of robotics. Both rotary and linear actuators are used. Low-cost brushed DC motors are common, but are being superseded by brushless AC motors for high-performance applications.

Stepper Motors

Stepper motors use an internal rotor, electronically manipulated by external magnets. The rotor can be made with permanent magnets or a soft metal. As windings are energized, the rotor teeth align with the magnetic field. This allows them to move from point to point in fixed increments.


스테파노 Stefano   18-08-09 10:12
Electric Motor 관련 자료
http://www.electrical-knowhow.com/2012/05/classification-of-electric-motors.html

Electric Motor 종류와 특징
https://www.rs-online.com/designspark/different-types-of-motors-and-their-use

1. 교류모터 (AC Motors)
    1) Synchronous Motor (동기모터):
        특징: Rotor 회전수가 공급전류의 주파수에 맞추어 회전,  부하변동에도 회전수 동일
        용도: Robotics. Process Control, 원심식 압축기
    2) Induction Motor(유도전동기, 비동기모터):
        특징: Stator의 자기장으로 인하여 Rotor에 전자기장 유도전류가 생기는 회전력으로 동작. 단상과 삼상이
        용도: 펌프, 압축기, 엘레베이터, 콘베이어등 가장 흔히사용되는 모터
2. 직류모터 (DC Motors)
    1) Brushed DC Motor(브러쉬 형)
        특징: 전압에 따라 회전수 달라짐, 저용량기기에 저가격
        세부권선 Types:
        Series Wound (Rotor 직렬권선식,전압조절식 회전수조절) 속도조절 안좋지만 기동력 좋음; 전기자동차, Hoist, Crane용
        Shunt Wound (Stator Windin이 Rotor와 평행) 모터전류증가로 Torque, 정속유지, 선반, 진공청소기, 공구류, Conveyor
        Compound Wound(Series/Shunt의 혼합식)기동Torque향상, 유연한 동작, Compressor, Press, 원형톱, Shearing Machine
        Permanent Magnet(영구자석식 Field Magnet사용) 저 Torque 정밀기기, Robotics, Servo System
    2)Brushless DC Motor (Brush 대신 Motor Controller 사용)
        특징:Hall Effect를 이용한 Rotor Position감지기를 사용하여 Rotor Coil의 전류를 정밀제어하여 회전속도조절. 수명길다
        용도:모터가격이 높고 효율도 높음. 신뢰도 높아야 하는 Fan, Pump, Compressor, 프린터등에 사용. Stepper모터등
   

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