Edc Lab Final

7/27/2019 Edc Lab Final

1/72

ELECTRIC DRIVES AND CONTROL LABORATORY

LAB MANUAL

PREPARED BY VERIFIED BY APPROVED BY

FACULTY OF ENGINEERING

ERODE BUILDER EDUCATIONAL TRUSTS GROUP OFINSTITUTIONS

DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING


2/72

ELECTRIC DRIVES AND CONTROL LABORATORY

LIST OF EXPERIMENTS

CYCLE 1

1. Simulation of closed loop control of converter fed DC motor

2. Simulation of closed loop control of chopper fed DC motor

3. Simulation of VSI fed 3-phase induction motor

4. Simulation of 3-phase synchronous motor drive

5. Speed control of DC motor using 3-phase rectifier

6. Speed control of 3-phase induction motor using PWM inverter

CYCLE 2

7. DSP based closed loop drive for induction motor

8. Induction motor speed control using FPGA

9. Speed control of Brushless DC motor

10. DSP based chopper fed DC motor drive

11. Switched reluctance motor drive using DSP

12. PLC based drives


3/72

CONTENTS


4/72

CIRCUIT DIAGRAM: CLOSEDLOOP CONTROL OF CONVERTER

FED DC MOTOR

Sl.No

Date Name of the ExperimentsPageNo

MarksAward

ed

FacultySign

1. Simulation of closed loop controlof converter fed DC motor

2. Simulation of closed loop controlof chopper fed DC motor

3. Simulation of VSI fed 3-phaseinduction motor

4. Simulation of 3-phasesynchronous motor drive

5. Speed control of DC motor using3-phase rectifier

6.Speed control of 3-phaseinduction motor using PWMinverter

7. DSP based closed loop drive forinduction motor

8. Induction motor speed controlusing FPGA

9. Speed control of Brushless DCmotor

10.DSP based chopper fed DCmotor drive

11.Switched reluctance motor driveusing DSP

12. PLC based drives


5/72


6/72

EX.No:1DATE:

CLOSED LOOP CONTROL OF CONVERTER FED DCMOTOR

Aim:

To simulate the closed loop controls of converter fed DC motor

and to study its characteristics using MATLAB/SIMULINK.

Requirements:MATLAB

Procedure:

Steps to create modeling by using MATLAB/SIMULINK:

1. Click on File NewModel.

2. On resulting window click on library Browser, a simulink library

browser will appear.

3. Make/Model the circuit by placing all its Blocks from its

corresponding Library/toolbox,. Right click on the block to rotate

mirror etc. to organize the circuit elements.

4. To change the circuit parameters applicable to the block by

double clicking on the block/element and type the values. Keep

the values default for some blocks like thyristor, diodes, mosfet

etc.

5. To measure/observe the voltage across or current passes

through the electrical block/device, connect voltage

measurement or current measurement blocks respectively with

the electrical block, it is available on the library Simpower

System/measurement.

6. To observe the waveform in figure window, scope block is

connected with voltage measurement and current measurement

blocks. This scope block is available by click on Library

browserSimulink/sourcescope.

7. Before simulating the circuit, ensure that all the blocks are

connected properly. The most common error encountered is

floating node. This usually means that there is some problem in

interconnects.

8. After correcting all floating node errors start by creating a

simulation.


7/72

9. Click on simulationconfiguration parameters and make sure

that solver option is ode15s (stiff/NDF), it is essential when

circuit contains power system or power electronics tools. And the

stop time value should be 1/50 for 50Hz or 1/60 for 60Hz supply

frequency for one cycle. For n number of cycles, stop timewould be n*(1/50) for 50Hz supply, where n=1, 2, 3.


8/72

OUTPUT:


9/72

10.To run the simulation, select simulation start.

11. If any errors are reported here. Correct schematic or the

simulation settings and re-run simulation.12. To view simulation plots on simulation window, double click

the scope in the schematic. The scope block corresponding to

voltage measurement and current measurement blocks gives

voltage and current waveforms respectively with respect to time.

13. The waveforms obtained. Here the input voltage and gate

pulse waveforms are same for all type of load, so these two

waveforms are shown in shown in waveform 1 alone, not in laterwaveforms. So please understand that these two waveforms are

common for all loads.

Note:

In this Experiment, all the waveforms shown here are observed

using To Workspace Block from Simulink / sinks library.


10/72


11/72

RESULT:

Thus the closed loop control of converter fed DC motor

was simulated and its characteristics waveform were observed using

MATLAB/SIMULINK.

MARKS SPLIT UP

Particulars Max.MarksMarks

Obtained

Aim & Circuit Diagram 10

Execution of Practical 20

Calculation, Graph &Result

10

Viva voce 10

Total 50


12/72


13/72

CIRCUIT DIAGRAM


14/72


15/72


16/72

power system or power electronics tools. And the stop time value should

be 1/50 for 50Hz or 1/60 for 60Hz

supply frequency for one cycle. For n number of cycles, stop time

would be n*(1/50) for 50Hz supply, where n=1, 2, 3.

9. To run the simulation, select simulation start.


simulation settings and re-run simulation.

11. To view simulation plots on simulation window, double click the

scope in the schematic. The scope block corresponding to voltage

measurement and current measurement blocks gives voltage andcurrent waveforms respectively with respect to time.

12. The waveforms obtained.Here the input voltage and gate pulse

waveforms are same for all type of load, so these two waveforms are

shown in shown in waveform 1 alone, not in later waveforms. So please

understand that these two waveforms are common for all loads.

Note:In this Experiment, all the waveforms shown here are observed using

To Workspace Block from Simulink / sinks library.

BLOCK DIAGRAM:


17/72


18/72

BLOCK DIAGRAM

MATLAB CIRCUIT DIAGRAM


19/72

OUTPUT:


20/72

MARKS SPLIT UP


Obtained




10

Viva voce 10

Total 50


21/72

RESULT:

Thus simulated the closed loop control of chopper fed DC

motor and its characteristic waveforms were observed using

MATLAB/SIMULINK.


22/72

CIRCUIT DIAGRAM: VSI FED THREE PHASE INDUCTION MOTOR


23/72


24/72

EX.No:03DATE:

VSI FED THREE PHASE INDUCTION MOTOR

Aim:

To simulate the VSI fed 3phase induction motor and to observe

its waveforms with motor load by using MATLAB/SIMULINK.

Requirements:MATLAB

Procedure:






corresponding Library/toolbox,. Right click on the block to rotate

mirror etc. to organize the circuit elements.




etc.5. To measure/observe the voltage across or current passes through

the electrical block/device, connect voltage measurement or

current measurement blocks respectively with the electrical block,

it is available on the library Simpower System/measurement.


connected with voltage measurement and current measurement

blocks. This scope block is available by click on Library

browsersimulink/sourcescope.



floating node. This usually means that there is some problem in

interconnects.


simulation.


25/72

Click on simulationconfiguration parameters and make sure that

solver option is ode15s (stiff/NDF), it is essential when circuit

contains power system or power electronics tools. And the stop

time value should be 1/50 for 50Hz or 1/60 for 60Hz supply

frequency for one cycle. For n number of cycles, stop time would

be n*(1/50) for 50Hz supply, where n=1, 2, 3.




11. To view simulation plots on simulation window, double click

the scope in the schematic. The scope block corresponding to

voltage measurement and current measurement blocks gives

voltage and current waveforms respectively with respect to time.

12. The waveforms obtained. Here the input voltage and gate

pulse waveforms are same for all type of load, so these two

waveforms are shown in shown in waveform 1 alone, not in later

waveforms. So please understand that these two waveforms are

common for all loads.

Note:

In this Experiment, all the waveforms shown here are observed

using To Workspace Block from Simulink / sinks library.


26/72

OUTPUT


27/72


28/72

RESULT:

Thus simulated the VSI fed 3 phase induction motor and

its waveforms with motor load were observed by using

MATLAB/SIMULINK.

MARKS SPLIT UP


Obtained




10

Viva voce 10

Total 50


29/72


30/72

CIRCUIT DIAGRAM: VSI FED THREE PHASE SYNCHRONOUS MOTOR


31/72

EX.No:04DATE:

THREE PHASE SYNCHRONOUS MOTOR DRIVE

Aim:

To simulate the VSI fed 3phase synchronous motor drive

and to observe its waveforms with motor load by using

MATLAB/SIMULINK.

Requirements:MATLAB

Procedure:






corresponding Library/toolbox,. Right click on the block to

rotate mirror etc. to organize the circuit elements.




etc.

5. To measure/observe the voltage across or current passes

through the electrical block/device, connect voltage

measurement or current measurement blocks respectively with

the electrical block, it is available on the library Simpower

System/measurement.


connected with voltage measurement and current

measurement blocks. This scope block is available by click on

Library browsersimulink/sourcescope.



floating node. This usually means that there is some problem

in interconnects.


32/72


simulation.

Click on simulationconfiguration parameters and make sure

that solver option is ode15s (stiff/NDF), it is essential when

circuit contains power system or power electronics tools. And

the stop time value should be 1/50 for 50Hz or 1/60 for 60Hz

supply frequency for one cycle. For n number of cycles, stop

time would be n*(1/50) for 50Hz supply, where n=1, 2, 3.




11. To view simulation plots on simulation window, double

click the scope in the schematic. The scope block

corresponding to voltage measurement and current

measurement blocks gives voltage and current waveforms

respectively with respect to time.

12. The waveforms obtained. Here the input voltage and

gate pulse waveforms are same for all type of load, so these

two waveforms are shown in shown in waveform 1 alone, not in

later waveforms. So please understand that these two

waveforms are common for all loads.

Note:

In this Experiment, all the waveforms shown here are

observed using To Workspace Block from Simulink / sinks library.


33/72

OUTPUT:


34/72


35/72

RESULT:

Thus simulated the VSI fed 3phase synchronous motor drive

and observed its waveforms with motor load by using

MATLAB/SIMULINK.

MARKS SPLIT UP


Obtained




10

Viva voce 10

Total 50


36/72

SPEED CONTROL OF INDUCTION MOTOR USING

FPGA


37/72


38/72

To obtain the speed control of open and closed loop speed

control of three phase induction motor using FPGA.

APPARATUS REQUIRED:

CONNECTION PROCEDURE:

1. Connect an AC input supply to variac and variac output to

Isolation transformer primary input terminals (0-230V).

2. Connect Isolation transformer secondary terminal 110V to smart

power module input terminal P and another 110V terminal to

smart power module input terminal N.

3. Connect smart power module output terminal R,Y,B to3 phase AC

Motor terminal r, y, b.

4. Connect motor speed feedback to proximity sensor card (speed

feedback terminal).

5. Connect DSPIC Micro 4011 trainer kit to proximity sensor card by

using 34 pin FRC

cable.

6. Connect PIC Kit 2 down loader to system by using USB port.

7. Connect PIC kit 2 down loader set up box to dsPIC Micro 4011

Trainer kit

EXPERIMENTAL PROCEDURE:

1. Verify the connections are made as per the connection

procedure.

S.N

o NAME OF THE APPARATUS QUANTITY

1 dsPIC 4011. 12 IGBT device module 13 Induction motor 14 Proximity sensor. 15 Patch cards. Required


39/72

2. Switch on the smart power module and dsPIC Micro - 4011

Trainer kit.

3. Select and down loading the program for (V/F control) speed

control of 3 phase AC motor using PIC kit 2 downloader.

4. Now smart power module reset LED is glow. Press the smartpower module reset button and then press dsPIC Micro - 4011

reset button. Now both the kits are ready to run the 3 phase AC

motor.

5. Switch ON the MCB, and then variac.

SPEED CONTROL OF INDUCTION MOTOR USING FPGA


40/72


41/72


42/72

AIM:To study the operation of Open loop and Closed loop speed

control of BLDC motor using Power module and DSP Micro-2407 trainerkit.

Apparatus Required:

S.no Apparatus name Quantity1. Smart Power Module 1 No2. DSP Micro-2407 Trainer Kit 1 No3. Isolation Transformer (230V/110-0-

110V)

1 No

4. Hall sensor Box 1 No5. BLDC motor 1 No6. Cables as

required7. PC 1 Set8. Variac 1 No

Connection Procedure:

1. Connect an AC input supply to variac and variac output to

Isolation transformer primary input terminals (0-230V)

2. Connect Isolation transformer secondary terminal 110V to smart



3. Connect smart power module output terminal R, Y and B to BLDC

motor R, Y and B terminals respectively.

4. Connect motor speed feed back to hall sensor card (speed feed

back terminal).

5. Connect DSP Micro-2407 trainer kit to hall sensor card by using

34 pin FRC cable.

6. Connect DSP Micro-2407 trainer kit to system by using USB port.

7. Connect smart power module to hall sensor using 34 pin FRC

cable.

EX.No: 06DATE:

SPEED CONTROL OF BLDC MOTOR


43/72

DSP BASED SPEED CONTROL OF BRUSH LESS DC MOTOR


44/72

Experimental Procedure: Open loop speed control:

1. Verify the connections as per the connection procedure.

2. Switch on the smart power module and DSP Micro-2407 Trainer

Kit.


4. Increase the supply voltage upto 230V by using variac.

5. Now smart power module reset LED is glow. Press the smart

power module reset button. The kit is ready to run the BLDC

motor.

6. Connect DSP Micro-2407 to PC using RS232 cable.

7. SPDT switch is down position (3) in DSP Micro-2407 trainer kit.

8. Click drive 2407 in system desktop.

9. After few second displays will be appear. Click comport and select

COM1 option and observe the following display will appear (RUN,

Open loop, Forward options are default enable.

10. Press reset button in Micro-2407 trainer kit. Now down load key is

enable in this sysem.

11. After downloading the execute option is enable. Click execute

option.

12.

Motor will RUN at given set speed.


45/72

13. Click reverse direction to run motor in reverse direction. Click

break option the motor will be stop then Exit option is enable.

14. Click RUN option the motor will be run.

Experimental Procedure: Closed loop speed control


2. Switch on the smart power module and DSP Micro-2407 Trainer

Kit.



5. Now smart power module reset LED is glow. Press the smart

power module reset button. The kit is ready to run the BLDC

motor.

6. Connect DSP Micro-2407 to PC using RS232 cable.

7. SPDT switch is down position (3) in DSP Micro-2407 trainer kit.

8. Click drive 2407 in system desktop.

9. After few second displays will be appear. Click comport and select

COM1 option and observe the following display will appear (RUN,

Closed loop, Forward options are default enable.

10. Press reset button in Micro-2407 trainer kit. Now down load

key is enable in this system.

11. After downloading the execute option is enable. Then Click

execute option.

12. Motor will RUN at given set speed.


46/72

13. Click reverse direction to run motor in reverse direction.

Click break option the motor will be stop then Exit option is

enable.

14. Click RUN option the motor will be run.

Tabulation for Open loop control of BLDC motor:

Reverse Mode:

S.N

o

Duty cycle Voltage in V Set Speed in

RPM

Actual Speed

in RPM1.

2.

3.

4.

5.

Tabulation for Closed loop control of BLDC motor:

Forward Mode:

S.N

o

Duty cycle Voltage in V Set Speed in

RPM

Actual Speed

in RPM1.

2.

3.

4.

5.


47/72

MARKS SPLIT UP


Obtained




10

Viva voce 10

Total 50


48/72

Result:

Thus the open loop and closed loop speed control of BLDC motor

using power module and DSP kit was done and output was

verified and graph was drawn.

SWITCHED RELUCTANCE MOTOR DRIVE USING DSP


49/72

EX. No: 07DATE:

SWITCHED RELUCTANCE MOTOR DRIVE USING

DSP


50/72

Aim:

To study the open and closed loop speed control of SRM by using

Micro-2407 and SRM Power Module.

Apparatus Required:

S.no Apparatus name Quantity1. SRM Power Module 1 No2. DSP Micro-2407 Trainer Kit 1 No3. Isolation Transformer (230V/110-0-

110V)

1 No

4. Hall sensor Box 1 No

5. Cables asrequired

6. PC 1 Set7. Variac 1 No

Connection Procedure:

1. Connect the 34 Pin cable from the Micro-2407 to SRM power

module.

2. Connect the 26 Pin cable from the Micro-2407 to SRM power

module

3. Connect the feedback cable between motor and the SRM power

Module.

4. Connect the serial port from the PC to 9-Pin termination of the

DSP trainer.

5. Connect the motor terminals A1,A2,B1,B2 to the A1,A2,B1,B2

terminals in SRM Power Module

Experimental Procedure:


2. Switch on the DSP Micro-2407 Trainer Kit.

3. Switch ON the SRM Power Module.


51/72


52/72

2. After ensuring all the connection, apply the input voltage to

the SRM power module (DC rail voltage (300V), which is shown

in the power module voltmeter).

3. Now the motor starts to rotate in the set speed.

4. By using the switches increment (S3) and decrement (S2) set

the speed of the motor.

5. The actual speed of the motor will be displayed in the LCD and

PC.

6. To measure the load current of the motor, externally connect

one AC ammeter in series with any one phase.

Experimental Procedure: Closed Loop Control

1. Verify the PWM waveform which is terminated in the SRM

power Module.

2. After ensuring all the connection, apply the input voltage to

the SRM power module (DC rail voltage (300V), which is shown

in the power module voltmeter).

3. Now the motor starts to rotate in the set speed.

4. By using the switches increment (S3) and decrement (S2) set

the speed of the motor.

5. The actual speed of the motor will be displayed in the LCD and

PC.

6. Now apply the load to the motor at rated current rating and

analyze the performance of the closed loop control.

7. The actual speed of the motor retains same as set speed after

applying the load in close loop condition.


53/72

8. To measure the load current of the motor, externally connect

one AC ammeter in series with any one phase.

Tabulation for Closed loop control of Switched Reluctance

Motor:

S.N

o

Rectifier

Output Voltage

in V

Calculated

Output Voltage

in V

Set Speed in

RPM

Actual Speed in

RPM

1.

2.

3.

4.

5.

6.

Tabulation for Open loop control of Switched Reluctance Motor:

S.N Rectifier Calculated Set Speed in Actual Speed in


54/72

o Output Voltage

in V

Output Voltage

in V

RPM RPM

1.

2.

3.

4.

5.

6.

Precautions:

To avail the features provided with the trainer, you are advised to

confirm certain basic norms and are requested to abstain from the

following.

1. Dont connect the CRO probe at the output terminal of the IPM

without isolation.

2. If you wants to see the high voltage waveform using CRO,

please connect one isolation transformer between auto

transformer and SRM module otherwise remove the earth

terminal of the CRO power card.


55/72

3. If the protection circuit LED in the IPM is glow during the

operation, user must reset the trainer kit first and then reset

the power module.

4. Please do not insert any add-on card while the trainer is power

ON.

5. Please do not tamper with any of the components in the

trainer.

6. Please do not solder any wire from connectors when the power

is ON.

7. Wires are to be soldered only from the solder side of the boardin unavoidable conditions.

8. The headers should be used only with cables and not with

wires soldered from the pins.

9. Dont attempt to service the trainer yourself in case of

problems.

10. Dont insert or remove any ICs while power is ON.

Result:

Thus the open and closed loop speed control of SRM by

using Micro-2407 and SRM Power Module was done and output was

verified .


56/72

Aim:To determine the Variable frequency drive based 3 induction

motor operation by using PLC.

Parameters description:

1. Minimum set speed (Hz) - 0 Hz.

2. Maximum set speed (Hz) - 50 Hz.

3. Acceleration rate (s/100Hz) - 5.0 (s/100Hz).

4 .Deceleration rate (s/100Hz) - 10.0 (s/100Hz).

5. Drive configuration - AI.AV.

6 .Motor rated (A) - 2.20 A.

7. Motor rated (RPM) - 1500 rpm.

8. Motor rated (V) - 230v.

9 .Motor rated (cos ) - 0.85.

10. Parameter access - L2.

11. Start/Stop logic select 0

Theory:

The important components are,

PLC

A Variable Frequency Drive (VFD)

3-PHASE AC INDUCTION MOTOR

EX. No:08DATE:

PLC BASED DRIVES


57/72

In PLC based Variable Frequency Drive is widely used for

controlling the AC motors in both conditions of with and without

loads. PLC software installed in computer by using this software

we need configure and communicate the PLC by using Ethernet

Communication.

Programs can be created in this PLC software and it stored to

PLC, based on this it produce output voltage for controlling the

VF drive.

Programmable Logic Controller (PLC) having the Digital Inputs

and Digital Outputs with operating voltage 24 V DC.

It also has the features of Analog Input and Analog Output

channels. In this Analog Input channel can read the voltage (0-

10) V DC.

In Analog Output channel can be able to produce the output both

voltage and current. The voltage range from (0-10) V DC and

then current varies from (0-20) mA or (4-20) mA.

Variable Frequency Drives (VFD) is mainly used to control ac

motors, the speed of the motor is controlled by varying the

frequency.

The input supply to VF drive is 1, 230 V AC and it converts that

supply voltage then produced output supply 3, 440 V AC for

operating the 3 AC Induction motor.


58/72

VF drive having some of the features like inbuilt supply voltage

(0-10)V DC for Analog variable speed and 24 V DC output

voltages.

In this 24 V DC is used to enable the drive to run mode or stop

mode and it also used enable the drive for the motor operation in

Forward and Reverse direction.

VFD consists of 5 keys like Mode, Up, Down, Start and Stop/Reset

keys. The Mode key used for select the parameters, Up key used

for increase the parameters values; Down key used for decrease

the parameters values and Start, Stop/Reset keys used for start

or stop the motor operation.

VF drive operates by using PLC with this Analog voltage (0-10) V

DC. Based on PLC program we can vary the Analog output

voltage (0-10) V DC, this voltage is given to the VF drive A2 pin

(variable voltage input).

Based on this voltage, VF drive frequency varies due to this

produced output voltage to motor also varies. So motor speed

can be control by varying frequency in VF drive by using PLC.

Procedure:

By using this (M)MODE,^UP and (V)DOWN, keys set the above

described eleven parameters values.

Now press (M)MODE key up to displays the Fr parameter.

Give the connections based on wiring diagram.

Open the PLC software (ABB configuration), for creating the PLC

program do the steps given below.

Step 1: open the software ABB Configuration by double click.

Step 2: Create a new File, and then click on new project.

Step 3: Select the Model number (AC500 PM564_ETH) and then given

any file Name and select Location then click on OK.

Step 4: Extend the device by click on the (+) symbol, do this process up

to IP settings option displayed.


59/72

Step 5: Double click on IP settings.

Step 6: Now click the IP configuration tool.

Step 7: Click the scan option.

Step 8: Double click on the AC 500_1 and then click Yes.

Step 9: Select the Project option after that select Rebuild all option.Step 10: Right click the PLC_PRG in POUs option then select Convert

object.

Step 11: Select the LD option then click on OK.

Step 12: Double click on PLC_PRG in POUs option, programming window

will be shown.

Step 13: Create the new program.

Step 14: Select the Online option then go to Communicationparameters.

Step 15: If any old parameters is present in channels window use

remove option then select new option. Now select TCP/IP option, next

click OK.

Step 16: Edit the IP address, Port, Motorola byte order and then select

Gateway.

Step 17: Select the Local option then click OK.Step 18: Click on Online option and then select Login.

Step 19: Now Downloading windows open then click Yes.

Step 20: Select Online option and then select Run.

Step 21: Now enter the values from 0 to 28000 based on this frequency

Varies in drive from 0 HZ to 50 HZ.

Now we can able to check the 3 induction motor operation, it

rotates both forward and reverse direction by using this PLCbased Variable Frequency Drive.


60/72

ResultThus the 3 induction motor operates in both directions by using

PLC based Variable Frequency Drive was done and output was

verified.

Connection diagram of DSP based speed control of Chopper fedDC motor


61/72

EX. No:09

DATE:

DSP BASED CHOPPER FED DC MOTOR DRIVE


62/72

Aim:To study the operation of open loop and closed loop speed

control of DC motor using smart power module and dsPIC Micro-4011trainer kit.

Apparatus Required:

S.no Apparatus name Quantity1. Smart Power Module (VPET-106A) 1 No

2. dsPIC Micro-4011 Trainer Kit 1 No

3. Isolation Transformer (230V/110-0-110V)

1 No (Optional)

4. Proximity Sensor Box 1 No

5. PMDC motor 1 No

6. PIC kit 2 downloader (setup box) 1 No

7. Cables as required

8. PC 1 Set

9. Variac 1 No (Optional)

Connection Procedure:1. Connection an AC supply to variac and variac output to isolation

transformer primary input terminals (0-230V).

2. Connect isolation transformer secondary terminal 110V to smart



3. Connect smart power module output terminal A+ and A- to PMDC

motor +ve and -ve terminals respectively.

4. Connect motor feed ack to proximity sensor card (speed feed

back terminal).

5. Connect dsPIC Micro-4011 trainer kit to proximity sensor card

by using 34 pin FRC cable.

6. Connect PIC kit 2 down loader to system by using USB port.

7. Connect PIC kit 2 down loader set up box to dsPIC Micro-4011

Trainer kit.


63/72

Tabulation for Open loop Speed Control of DC motor:

Froward Mode:S.no Actual speed Duty cycle S1 S2

Reverse Mode:S.no Actual speed Duty cycle S1 S2

Experimental Procedure: Open Loop control


2. Switch on the smart power module and dsPIC Micro-4011

Trainer kit.

3. Select and down loading the program for speed control of

PMDC motor using PIC kit 2 downloader.

4. Now smart power module reset LED is glow. Press the

smart power module reset button and then press dsPIC

Micro-4011 reset button. Now both the kits and ready to

run the PMDC motor.



7. Select forward or reverse mode based on your experiment

from the LCD display by increment (forward mode) or

Decrement (Reverse mode) key.

8. Then select the open loop speed control using incrementkey.


64/72

9. Set the Actual speed=0, and Duty cycle=50%.

10. Press increment key duty cycle is varied upto 85%.

11. Then the corresponding readings are taken and

Tabulate both forward and reverse mode reading

separately.

Tabulation for Closed loop Speed Control of DC motor:

Froward Mode:

S.no Set speedActualspeed

S1 S2

Reverse Mode:

S.no Set speedActualspeed

S1 S2

Experimental Procedure: Closed Loop control1. Verify the connections as per the connection procedure.


Trainer kit.

3. Select and down loading the program for speed control of

PMDC motor using PIC kit 2 downloader.


smart power module reset button and then press dsPIC

Micro-4011 reset button. Now both the kits and ready to

run the PMDC motor.


65/72



7. Select forward or reverse mode based on your experiment

from the LCD display by increment (forward mode) or

Decrement (Reverse mode) key.

8. Then select the closed loop speed control using decrement

key.

9. Now press increment and decrement key simultaneously.

So that the display will appear to set the controller value

(Enter Kp value = 0.05).

10. Now press increment and decrement key

simultaneously. So that the display will appear to set the

controller value (Enter Ki value = 0.01).

11. Now press increment and decrement key

simultaneously. So that the display will appear to set motor

speed (Set Speed =300 rpm, actual speed= ).

12. By varying the set speed using increment key, then

the motor speed can be varied.

13. Then the corresponding readings are taken and

Tabulate both forward and reverse mode readingseparately.

Result:


66/72

Thus the the operation of open loop and closed loop speed control of

DC motor using smart power module and dsPIC Micro-4011 trainer kit

was done and the output was verified.

Aim:

To control the speed of DC motor using three phase rectifier

Apparatus required:

OEC16HV2B module

VPET-106A module

DC motor

Connection procedure:

1. Connect the single phase i/p supply to power module through a

VARIAC

2. Connect the power module and controller to the supply main

3. Connect PWM o/p of controller module to PWM i/p of power module

4. Connect the held terminal of dc motor to the F+

F-

terminal of thepower module

5. Connect the armature terminals of power module using batch chord

6. Connect motor speed feedback cable to motor feedback i/p of

controller module

Experimental procedure:

1. Verify the connection as per the connection procedure

EX. No:10DATE:

SPEED CONTROL OF DC MOTOR USING THREEPHASE RECTIFIER


67/72

2. Switch ON power ON/OFF switch in both the IGBT based power

module and controller module

3. Switch ON the MCB in the power module

4. Vary the VARIAC from minimum to maximum position and apply for

AC voltage gradually to the power module5. Now LCD displays the following one by one with a delay of few

seconds

1. DC chopper

2. DC-AC inverter

6. Select dc chopper by using increment key

1. Forward

2. Reverse7. For forward motoring select FORWARD using increment switch

1. Open loop

2. Closed loop

8. For open loop control select open loop using increment switch and

LCD will display as below

Open loop control:

Now press enter so that bellow display will appear Then set duty cycle (50-85%) by varying the increment or

decrement button

Now motor will start to run corresponding to the duty cycle

For reverse direction select reverse option and follow same

procedure

Closed loop control:

For closed loop control select closed loop using decrement

switch the LCD will display as below

CLOSED LOOP

Now press enter so that bellow display will appear

ENTER KP VALUE (0.10)

Now press enter so that bellow display will appear(default value)

DC DRIVE

SET SPEED =0


68/72

ACTUAL SPEED =0

Then set the speed of motor by varying increment or decrement

button and press enter

Now the motor will start to run in set speed

Then apply load gradually so that the closed loop operation can

be studied for different load variation

For reverse direction select reverse option and follow same

procedure

It require Kp and Kc values can be varied by using increment and

decrement

Result:

Thus the open loop and closed loop speed control of DC motor

was studied and output was verified by using three phase rectifier

Aim:To study the operation of open loop and closed loop speed

control of 3 AC motor using smart power module and dsPIC Micro-4011 trainer kit (V/F control).

Apparatus Required:

S.no Apparatus name Quantity1. Smart Power Module (VPET-106A) 1 No2. dsPIC Micro-4011 Trainer Kit 1 No3. Isolation Transformer (230V/110-

0-110V)1 No(Optional)

4. Proximity Sensor Box 1 No5. 3 AC motor 1 No6. PIC kit 2 downloader (setup box) 1 No7. Cables as required

8. PC 1 Set9. Variac 1 No

EX. No:11DATE: SPEED CONTROL OF 3 PHASE INDUCTION MOTORUSING PWM INVERTER


69/72

(Optional)

Connection procedure:1. Connection an AC input supply to variac output to isolation

transformer primary input terminal (0-230V).

2. Connect Isolation transformer secondary terminal 110V tosmart power module input terminal P and another 110V to


3. Connect smart power module output terminal R,Y,B to 3 AC

motor terminal r,y,b.

4. Connect motor speed feed back to proximity sensor card (speed

feed back terminal).

5. Connect dsPIC Micro-4011 trainer kit to proximity sensor card byusing 34 pin FRC cable.

6. Connect PIC kit 2 down loader to system by using USB port.

7. Connect PIC kit 2 down loader set up box to dsPIC Micro-4011

trainer kit.

Tabulation for Open loop Speed control three phaseInduction motor:

S.noMod.inde

xSet

frequencyActualspeed

S1 S2

Experimental Procedure: Open loop speed control

1. Verify the connection are made as per the connection

procedure.


70/72


trainer kit.

3. Select and down loading the program for (V/F control)

speed control of 3 AC motor using PIC kit 2 downloader.

4. Now smart power module reset LED is glow. Press thesmart power module rest button and then press dsPIC

Micro-4011 rest button. Now both the kits are ready to run

the 3 AC motor.



7. From the LCD display the following parameter appear one

by one

Inverter PWM controller

V/F control

8. Than select the open loop using increment key and Select

the values of Modulation index and set frequency to get

actual speed.

Modulation index=0.19

Set frequency=10Hz

Actual speed=

9. By pressing increment key we can change the modulation

index and set frequency value simultaneously. The

Modulation index and set frequency valure varied upto

0.95 and 50Hz respectively.

10. Motor speed control is varied by depends upon Mod.

Index and set frequency.

11. The the corresponding readings are taken and its

tabulated.

Tabulation for Closed loop Speed control three phase Inductionmotor:

S.no Set SpeedActual

speedS1 S2


71/72

Experimental Procedure: Closed loop speed control

1. Verify the connection are made as per the connection

procedure.


trainer kit.

3. Select and down loading the program for (V/F control)

speed control of 3 AC motor using PIC kit 2 downloader.


smart power module rest button and then press dsPIC

Micro-4011 rest button. Now both the kits are ready to

run the 3 AC motor.



7. From the LCD display the following parameter appear

one by one

Inverter PWM controller

V/F control

8. Than select the Closed loop using decrement key.

9. Now press increment and decrement simultaneously. Sothat the display will appear. Enter Kp value= 0.1

10. Now press increment and decrement simultaneously.

So that the display will appear. Enter Ki value= 0.02

11. Again press increment and decrement

simultaneously. So that the display will appear.

Set Speed= 300rpam

Actual speed=

12. By variying the set speed using increment key, thanthe motor speed can be varied.


72/72

13. The the corresponding readings are taken and its

tabulated.

Result:

Thus the operation of open loop and closed loop speed control

of 3 induction motor using smart power module and dsPIC Micro-4011

trainer kit (V/F control) was done and output was verified successfully.

Edc Lab Final

Documents