Dynamics and stability of average current control of DC-DC converters are analyzed by sampled-data modeling. Orbital stability is studied and it is found unrelated to the ripple size of the orbit. Compared with the averaged modeling, the sampled-data modeling is more accurate and systematic. An unstable range of compensator pole is found by simulations, and is predicted by sampled-data modeling and harmonic balance modeling.
@article{arxiv.1210.1959,
title = {Modeling and Instability of Average Current Control},
author = {Chung-Chieh Fang},
journal= {arXiv preprint arXiv:1210.1959},
year = {2012}
}
Comments
Published in the Proceedings of EPE International Power Electronics And Motion Control Conference, Cavtat & Dubrovnik, Croatia, September 9-11, 2002, paper number SSIN-03, 10 pages