Implementing 3 phase unbalance low voltage distribution for networks on MATPOWER help.

Hi everyone,

I'm currently trying to make a model or just simply use existing model to analyse the voltage drop or votlage rise at each point of bus systems (or most people call it nodes) with different impedance for each branch, and we can put different loads (from consumers) or generators (PV systems) on each node and we can also extend the branch or add on branches like attaching legos as much as we want. The transformer will give us the main supply power where we can keep it as around 500KVA (or can change if the model allows), 3 phase transformer. Simply put we will have a 3 phase unbalance low voltage distribution for the whole network, making the math very complicated especially since we have to account for the impedance matrix. But really it is just a pi or T section model with a transformer attached that have 3 phase unbalance system like in Picture 1. I have found some research paper ( Low Voltage Distribution Networks Modeling and Unbalanced (Optimal) Power Flow: A Comprehensive Review, Distribution power flow method based on a real quasi-symmetric matrix, A detailed network model for distribution systems with high penetration of renewable generation sources) that might help in modelling the math but it seems way over my abilities as I am only a 3rd year Electrical Engineering background and I really don't have the skills to understand so I was just wondering if there are any tools or math models such as MATPOWER that are open source so I could use. Right now looking at MATPOWER, it has a huge learning curve so I don;t know how I am supposed to find 3 phase unbalance low voltage distribution from there. Any help would be much appreciated!! Thank you!

Answer 1

[Lechuan Piao]

https://matpower.org/documentation/howto/three-phase.html

will you check this out and see if this helps? Just fill in some data and you will be fine.