How to Design Under/Over Frequency Relay Model in MATLAB SIMULINK | Dr. J. A. Laghari

#underfrequencyrelay
#overfrequencyrelay
#UFLS #OFLS #UFR #OFR #ufr #ofr
#protection
In this video tutorial, How to design under frequency relay as well as over frequency relay in matlab Simulink software is presented.
The Link to download the PDF and SIMULINK model of Under/over frequency relay:
drive.google.c...
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[@souravde6116]

Thank you very much Prof. Laghari. It's really very helpful for students when you explain such things as what we have studied in textbook via Matlab simulation. It gives us a better insight that how things are operating/working. I encourage you sir to keep posting such educational stuff which is really a very good contribution to the student's community for learning and understanding the concepts. Lastly, one feedback from my side is that if you make a video on IDMT relay and plotting its operating characteristics will be another interesting thing to explore. Thank You.

[@DrJALAGHARI]

Thank you so much for your detailed compliments. Do share it within your circle so that maximum people can get benefit from this video. Sure. I will try to make video on IDMT relay very soon.

[@miladabasi4807]

Thank you for this video sir, im grateful. And i have question, i've simulation(microgrid ieee 13bus) and i wanna implement adaptive underfrequency load shedding in this MG, but i have problem for coding in relay function. Can you help me plz? In this tutorial you simulating one breaker and one trip signal, but in my simulation there are many breaker.

[@DrJALAGHARI]

Thanks for the compliments. You have to place the same relay and breaker at different positions. Just change the underfrequeny value for each position.

[@DrJALAGHARI]

Thanks for the compliments. You have to place the same relay and breaker at different positions. Just change the underfrequeny value for each position.

[@joker-dc3tq]

Can u send me the simulation of under frequency load shedding sir Cuz i have the same prblm ?

[@aramyusuf5626]

السلام عليكم عذرا على التدخل في المحادثة هل اشتغل لديك الدائرة لأنني أيضآ أستخدمت مرحل التردد في دائرة أخرى ظهر أخطأ عدد 2 ولم اتمكن من معالجة الأخطاء.... مع التقدير والاحترام

[@hoytvolker3]

Perfect as always

[@DrJALAGHARI]

Thanks for the compliments.

[@mohammeddaar1020]

Excellent info

[@DrJALAGHARI]

Thanks for the compliments

[@ArifHussain-fs5jz]

Thanks for such a nice lecture, Sir please make a video on islanding detention using the trained model in Simulink to verify it on run-time simulations.

[@DrJALAGHARI]

Thanks for the compliments. Ok I will try to make video on this topic.

[@ArifHussain-fs5jz]

@@DrJALAGHARI thanks

[@whitebeard4409]

Can i have the function of frquency relay sir I need it and i can't open the Block I have Matlab 2014

[@DrJALAGHARI]

Thanks for the comment. I have designed this model in the MATLAB version 2017a. I think, you may visit the Rodney Tan model link and check which version this model is designed. You have to install that version in order to run it correctly.

[@alirifaie9116]

Hello. Thank you so much for this effort. Please I need the frequency relay block

[@DrJALAGHARI]

Thanks for the comment. Kindly download the frequency block from the link shared in the description section of the video or link shared in the video.

[@alirifaie9116]

@@DrJALAGHARI yes thank you doctor. Could you please share a video how to control and emulate the grid for low voltage ride through and high voltage ride through of system with specific grid codes

[@DrJALAGHARI]

@@alirifaie9116 Thanks for the comment. I am not sure about the making of video. It is because every new topic needs new learning and it takes lot of time.

[@alirifaie9116]

@@DrJALAGHARI Im just not sure how to control the grid to allow different voltage at a different time

[@alirifaie9116]

thank you so much

[@I4uOfficial]

Keeo It Up Sain 👍

[@DrJALAGHARI]

Thanks for the compliments.

[@chinecheremchuka5387]

I've simulated it but it's saying I should change my current directory to a writeable directory outside of the MATLAB installation area. This made it to display error and thus I'm not seeing any output. How do I rectify this issue?

[@DrJALAGHARI]

Just save it in any drive except C. Then run. It will run successfully.

[@chinecheremchuka5387]

Sir please, I'm having difficulty simulating it. It's showing me view 3 errors.

[@DrJALAGHARI]

May i know what error you encounter

[@chinecheremchuka5387]

Pls, how can I get the underfreqeuncy relay

[@DrJALAGHARI]

The same model can be used without any change to work as underfrequency relay.

[@santhoshraikar4019]

Dear sir I am facing difficulty to draw the circuit in simulink kindly do the needful I have attached circuit with output sir sir how to rig up thyrister control phase angle regulator how to draw the tap changing transformer and phase shift transformer in simulink I have email the detail

[@DrJALAGHARI]

Ok I will try

[@fatimaradhi4128]

can you share the link of the simulation file ?

[@DrJALAGHARI]

Thanks for the comment. Kindly see the description section of the video. The link is given there.

[@mraryamansingh]

hello sir i have mad this model for a ieee 19 bus system and i have implemented the codes there.i wanted to make a chapter wise file can u give me a pdf of a file with different chapters for which i can make a B.tech major project file.

[@DrJALAGHARI]

Thanks for the comment. I couldn't understand what do you mean by chapter wise code?

[@santhoshraikar4019]

Dear sir I have email the one more circuit now

[@DrJALAGHARI]

Thanks for your query. Due to my busy schedule, i am unable to hep you in such matters.

[@santhoshraikar4019]

Do the help needfull sir I am facing difficulty in circuit draw in Matlab simulink

[@santhoshraikar4019]

Give input sir

[@santhoshraikar4019]

Sir your email to share the dout