Modeling and Instability of Average Current Control
arXiv:1210.1959
Abstract
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.
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
Cited by in corpus (6)
- Boundary Conditions of Subharmonic Oscillations in Fixed-Switching-Frequency DC-DC Converters
- Bifurcation Boundary Conditions for Switching DC-DC Converters Under Constant On-Time Control
- Using Nyquist or Nyquist-Like Plot to Predict Three Typical Instabilities in DC-DC Converters
- Unified Subharmonic Oscillation Conditions for Peak or Average Current Mode Control
- Sampled-Data and Harmonic Balance Analyses of Average Current-Mode Controlled Buck Converter
- Comments on "Prediction of Subharmonic Oscillation in Switching Converters Under Different Control Strategies"