Improved Switching Converter Model Using Discrete and Average Techniques
IEEE Transactions on Aerospace and Electronic Systems
The nonlinear modeling and analysis of dc-dc converters has been done by averaging and discrete-sampling techniques. The averaging technique is simple, but inaccurate, as the modulation frequencies approach the theoretical limit of one-half the switching frequency. The discrete technique is accurate even at high frequencies, but is very complex and cumbersome. An improved model is developed by combining the aforementioned techniques. This new model is easy to implement in circuit and state variable forms and is accurate to the theoretical limit.
Shortt, D. Jeffrey and Lee, F. C., "Improved Switching Converter Model Using Discrete and Average Techniques" (1983). Engineering and Computer Science Faculty Publications. 28.