DC control practice set

Description

Control block

DC motor speed controller using PWM EM-24-02-01

1.    Selectable operating mode round, round or 1 round

2.    Speed ​​adjustment by internal setting

2.1         Analogue signal 0-10V, in ¼ round, round (forward) mode

2.2         Analog signal -10V~0V~+10V, in 1 loop mode (forward or reverse)

3.    Function generator can be connected: integration time t = 0.1-100s, 4 selectable ranges.

4.    Comparator: positive or negative value.

5.    Adjust the parameter of the PI control block to control the loop current

-      Kp = 0.1 ….

-      Ti = 5 … 500ms

6.    Current limiting 1 – 125% of maximum rating

7.    Adjust the PI block parameter to control the loop current

-      Kp = 1 … 48

-      Ti = 2 0.5 range selection…. 5ms and 5…. 50ms

8.   PWM generator can generate positive or negative signal

9.    The speed of the motor is converted to 1024 bits and then converted to electrical ±10V and adjusted in 0.1 - 1 increments

10. The TR compensator for the motor will be connected in the case of open loop, so that the cutting speed changes from no-load to loaded.

-      0.8 – 2 gain adjustment for copper loss

11. Hall effect sensor will detect the feedback current and convert it to ±10V voltage adjustable in 0.5 - 1 . increments

1. 4 7-segment LED will display speed value

Power block

IGBT power bridge inverter block EM-24-02-02

1.    The gate current of the motor is controlled by a bridge rectifier circuit

2.    Single-phase full bridge rectifier

3.    Can measure the gate current of the motor

4.    With current detector to control

5.    DC buss can be measured

Typical experiment

1.    Open-loop control

2.    Control open circuit

3.    4/4 open circuit control

4.    Controlling , , 4/4 open circuit compensation IR

5.    PI 1/4 . rotary frequency controller

6.    PI 2/4 . rotary frequency controller

7.    4/4 . PI rotary frequency controller

8.    PI 1/4 rotary frequency controller with PI series controller

9.    PI 2/4 rotary frequency controller with PI series controller

10. PI 4/4 rotary frequency controller with PI . series controller

EM-30-01-01 . Anti-collision DC motor

o    Normal power : 370KW

o    Normal voltage  : 200 V

o    Normal current         : 3.5 A

o    Normal speed   : 1750 rpm

o    Exciting voltage             : 200V

o    Size current                : 0.2A

o    Connection          : 4mm

ELECTROMAGNETIC BREAK EM-30-06-09

use load according to Eddy current principle to check electrical machine characteristics, suitable for checking motor, checking motor output while attaching optional load.

o    Power      : 370W

o    Voltage         : 0~110VDC

o    Current      : 0.6A

o    Speed          : 1750 rpm

o    Connection : 4mm

o    Base : with lock for attaching removable parts

Accessories:

1.    4mm . extension cord

2.    User Manual

3.    Experimental Instructions