Hi,
I'm looking for modeling approaches when the QSS/DAE approaches are not accurate enough in power system dynamics.
For example when both "slower" dynamics as machine transients x' are considered, but also faster dynamic y' are of relevance.
I'm in particular thinking of RLC filters, but also reactances and capacitances in transformers and the grid. In some studies, for example, also the "current inertia" of a transformer is of importance in a transient study. This means considering that u = L di/dt, and not simply U = j*w_0*L*I.
I think also some VSC-converter dynamics are too fast for the DAE approach assuming y'=0.
Can someone give advice on what to search for, and/or good articles or books explaining modeling approaches?
Thank you in advance,
Lars
Have you thought of using some multi scale method?
Article Heterogeneous Multiscale Method for Multirate Railway Tracti...
The models presented in the SimPowerSystems toolbox of the MATLAB cover both electromechanical and electromagnetic transients. Therefore, they seem suitable for your case. Within the SimPowerSystems toolbox manual, you will find many citations of outstanding articles that are used in the modeling.
Thanks Dewu and Mohamed. I'll have to read. It seems helpful.
Pablo, another good railway article! Congratulations to getting a running railway group! I do however get the impression, that this considers different times scales than what I was aiming for this time.
Indeed, the 'mathworks' picks the most accurate articles for constructing their models; yes, they are really useful articles.
It seemed to mainly old publications it is based upon, but maybe the main findings are so "simple" that it is enough?
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