1

2DC motor(AC motor)

3

()()Horse power HP 1HP=746W

4DC motor

CD

5(AC motor)NSNS

RT

6

synchronous motor

?

:

7IC360200step1.81018r/minHzr/min= ( ) 360 * Hz* 60 = 0.36 = 5,000Hz = 300 r/min

8Stepping motor

PMPM

VR

PMVR()HybridPM50.72/21.8/

9UnipolarCommonCommon

BipolarCommonIC

2525 2 400 1000 200 ~ 50000()

10

Servo motorsensor

CW/CCW

DCACAC DC DCAC AC ACDC DC AC

11

200~500ms1000~1500rpm1000~1500rpm

D/A

CW/CCW

12

Y-

(1)

(2) Y-Y-6Y

Y1/31/3Y(1/3)*(1/3)=1/35l5

13

(3)

(4)

20

14

905512060%40%

(60%)=(100%)-(40%)

15

0.5~1

16

()453060(0.720.36)1/7.21/36

17

(1) (Position Feedback Control)(Positional servomechanism)(Potentiometer)(2) (Velocity Feedback Control)(Tachometer)(3) (Position and VelocityFeedback Control)EncoderEncoder EncoderEncoder

18

(linear potential meter)(linear variable difference transformer, LVDT)

(rotational potential meter)(rotational variable difference transformer, RVDT)(encoder)

(linear potential meter) 1m19m25m0.01-0.05%

19

(rotational potential meter) (wipers)200*1061050.02-0.1%(encoder)

20

THE END