Virtual Inertia Emulation in an Islanded Microgrid

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Omar Hazem MOHAMMED

Dear Aehtsham Ul Haq

Please take a look to these attachments sites

Best Regards

Article Virtual Inertia Control Application to Enhance Frequency Sta...

http://eprints.whiterose.ac.uk/129150/1/2018_Energycon__Ron____Full_Paper.pdf

https://pdfs.semanticscholar.org/4d9a/eae10a1f06dfc19791f5fee5ee100239827e.pdf

https://repository.tudelft.nl/islandora/object/uuid:51849a15-2f89-447b-8661-ac5d12b44edb/datastream/OBJ/download

https://www.mdpi.com/2076-3417/7/7/654/pdf

Aehtsham Ul Haq

sir i have these paper, thesis and a lot of literature and i have reviewed it as well, i have problem in injecting virtual inertia portion, how to use PID and batteries sensors to reduce frequency dip,

Taimur Zaman

can you share the specificantion of your system? how do you expect inertia from PV system. You have to look for an inertial element that support your system in islanded/load_connection mode. From control perspective, your loop should be able to determine how much interial element is required, and so your kp can contribute boost to it either, or you can integrate the error in other consequences.

Ok, good luck, God willing

i have a grid connected micro grid of diesel, pv and battery source, when i trip the breaker to isolate it from main grid or i change the load, the frequency dip occur, this dip goes more deeper when i increase the penetration of pv or change load. i want to reduce this dip by adding inertia through battery and controller, which do the work of rotational mass as in CCP. but em confused, how to measure inertia, how to measure ROCOF and where to add this control loop in the designed system?

taimur Zaman plz comment

i think what omer Hazem has shared is absolutely the initial step for designing an inertial element. The loops are already designed you just simply put your system parameters into the mathematical model.

Taimur Zaman thank you, can you share the loops link and where to insert this loop? Plz tell