simplified PV model
Hello,
I am currently writing my bachelor’s thesis and I would really appreciate some guidance.
My topic is related to voltage profile support in a medium-voltage distribution network in Simulink. The main focus is not on making the solar plant itself as detailed as possible, but rather on building a reasonable simplified solar power plant model that is still more realistic than just using a plain DC power source.
What my professor expects from me is roughly this:
- use a standard medium-voltage distribution test feeder in Simulink,
- add a solar power source to the network,
- study how it affects voltage profile,
- study active and reactive power support,
- and later vary line r/X ratio and compare the results.
At the moment I am using an IEEE 34-node feeder model in Simulink.
My problem is that I first tried a more detailed structure with blocks such as:
- PV Array
- DC link
- Universal Bridge
- filter
- PWM Generator
but the simulation becomes very slow, especially when I try switching-based inverter modeling.
So my main question is:
For this type of thesis, what is a good simplified PV plant model in Simulink?
I do not need a highly detailed solar cell study. I just need a simplified but meaningful block structure that still represents a solar plant better than a simple DC source, and that can be connected to a medium-voltage feeder for voltage and reactive power studies.
I will attach screenshots of my current model, including the PWM Generator block, because that is one of the places where I got stuck and where the model started taking too long to simulate.
Sorry if this is a basic question — I am honestly not very skilled in Simulink yet, and I am trying to build the model step by step in a way that is still acceptable for a thesis.
Thank you very much for any advice.