How can I implemented the PR Controller?

Hello I´m ghis, I have a project in which I should implement a PR Controller in Simulink. More precisely I have to impliment the following two functions:

1.

GRP(s) is the transfer function of the PR-Controller (see image)

2.

GHC(s) = is the transfer function of the harmonic compensator where h denotes the harmonic order that the compensator is implemented for.

Please can you help me to implement this two function in Simulink?

@@ The two function must be implemented separately (that mean two Simulink program)

Thank you in advance for ur help.

Best regards

Answer 1

[Birdman]

You can find the models attached. Hope this helps.

[Engineer ET]

thank you for ur help. is it located in the simulink library? or did you implement it?

[Birdman]

All those blocks are located in Simulink library. You can find them.

[Engineer ET]

okay. Thanks! i now Need the Bode plot of GPR. Do you please know how i can do it?

[Birdman]

You need to define the GPR in Matlab-command line and then give numerical values to Kp and Ki. Then using

GPR=tf([Kp Ki Kp*w^2],[1 0 w^2])  
bode(GPR)

command, you can obtain the bode plot of the controller.

[Engineer ET]

Thanks. I have tried it and it has worked. please can you said me what the PR-Controller concretely is? and where you can use it? for what?

I have Simulink R2017a I have not found the PR-Controller in the Library. In which library is it? Thank you very much

[Birdman]

The PR Controller is a special form of PI Controller and it does not take place in Simulink Library. In simulink library, you can find a block PID, which is convertible to P, I, PD or PI.

If you check the bode plot of the PR Controller, you will see that the w variable brings a jump at the frequency w. This means that if a system has a zero at that frequency, it can be compensated by setting the value of w wisely. For more information about this, please check Notch Filters.

By changing the value of Kp and Ki, the system response can be boosted or attentuated since due to the numerical values, the bode plot will start below or above 0dB.

[izham zailam]

sorry for interrupt. but can i get the full simulink design for this PR controller please?

[adedayo adeiga]

Hello @ birdman . i need help on using a PR control with harmonic compensator to implement vector control of three phase grid connected Photo voltaic system .

[tejal patil]

Hello @birdman

How PR controller can be implemented in MATLAB 2015a ?

I am trying to use PR controller to implement Cuk converter with SRM drive control.

please share attachement on [e-mail]

Thank you.

Answer 2

[Alexandros Paspatis]

Hello,

can anyone upload the GPR.mdl for Matlab 2016b?

Thanks in advance.

[Birdman]

There you go.

[Alexandros Paspatis]

Thanks Birdman.

[adedayo adeiga]

hello @ birdman . can you upload GPR & ghc for Matlab 2016. i am trying to use PR controller with harmonic compensator to implement DQ Vector control in three phase grid connected Photovoltaic system . my email is [e-mail] thanks

[Ashwin M Prabhakar]

hello @ birdman . can you upload GPR & ghc for Matlab 2018. i am trying to use PR controller with harmonic compensator to implement in three phase grid connected Photovoltaic system . my email is [e-mail]; [e-mail] thanks

Answer 3

[ANIEFIOK ESSIEN]

I am Essien Aniefiok Udo, I am working on this same project, implementing a PR controller for a Grid connected inverter, I need assistance in the simulink implementation of the PR controller with harmonics compensators to reduce low frequency harmonics at the output of the inverter