I'm looking at this paper which proposes an energy function for a 3-bus power system example. I'm trying to replicate the results in the paper but am uncertain about the
D parameters in Sec III. In particular, the authors verify that with a certain
A matrix adjusting the gradient dynamics, the model has a stable equilibrium, but I'm confused about the
D parameters in this matrix.
EDIT1: it looks like the
D terms are some sort of rotor damping.
EDIT2 (follow up question): I'm having trouble tying out the dimensions of the
A3bus matrix to the
Abus matrix. Specifically, the dimensions of
Mg seem off. It appears that the
g means both slack and generator node, but then I don't see how to fit
A3bus into the
Abus structure. Any advice?
EDIT3: this paper helps somewhat but is still a bit unclear on the interpretation of the